D.O.S. Daily Oral Science Warm-ups * Most taken from CPO
Science Student TAKS Practice Books
Slide 2
A D. O. S. of Good News!!! We do not have a D.O.S. to do on
days we have a lab or test
Slide 3
Thought for the Day Success is a Journey, Not a
Destination
Slide 4
Joke of the Day Where do you do your dishes? In the Zinc
Slide 5
DOS #1 Which of these is NOT a branch of science? a.Chemistry
b.Biology c.History d.Physics
Slide 6
CONGRATS VOLLEYBALL They beat Palacios last night to go 1 0 in
District
Slide 7
DOS #2 Which set of elements are in the Noble Gases Group?
a.Hydrogen, Lithium, Sodium, Potassium b.Helium, Neon, Argon,
Krypton c.Copper, Silver, Gold, Zinc d.Fluorine, Chlorine, Bromine,
Iodine
Slide 8
Joke of the Day Intelligent Life
Slide 9
DOS #3 Which of these are true statements about the importance
of science? a.Science touches our lives in many ways everyday
b.Girls need to know as much about science as boys do c.Critical
thinking and problem solving lead to inventions that can help
improve the quality of life d.All of the above
Slide 10
Physics Joke of the Day Our Tax Dollars at Work
Slide 11
Chemistry Joke for the Day What's the difference between
Chemistry and cooking? In Chemistry, you should never lick the
spoon.
Slide 12
Birthdays Erin Stryk 9/1
Slide 13
Go Cobras
Slide 14
DOS #4 Regarding heating materials in the laboratory, which of
the following statements is NOT true? a.When heating chemicals in a
test tube, point the opening of the test tube away from yourself
and others b.Work with chemicals that produce gases and vapors only
in a well-ventilated room c.Use hot plates, not open flames, for
heating materials d.Use tongs or insulated gloves when handling an
object being heated.
Slide 15
Joke of the Day in Honor of Tonights Blue Moon (the last one
until 2015) Did you hear about the new restaurant that just opened
up on the moon? It has fabulous food, but no atmosphere
Slide 16
Go Cobra Volleyball Beat Edner
Slide 17
D. O. S. #5 What is the definition of hypothesis? a.The
statement of a scientific problem b.The study of cloning
hippopotami c.The results obtained from conducting scientific
experiments d.The prediction of an answer to a scientific
problem
Slide 18
Joke of the Day A man walks into his lab and asks Group 18,
Where are all the other elements? Group 18 replies to the man, They
ARGON (are gone) Contributed by Luke Smith 6 th period
Slide 19
D.O.S. #6 What common lab instruments would you use to measure
mass and volume? a.Balance and metric scale ruler b.Metric scale
ruler and graduated cylinder c.Balance and graduated cylinder
d.Beaker and graduated cylinder
Slide 20
Joke of the Day What did Hurricane Isaac say to the Island? EYE
Ive got my EYE on you
Slide 21
D.O.S. # 7 Name the 4 base SI units a.feet, inches, yards,
miles b.meter, gram, liter, seconds c.feet, inches, meters,
centimeters d.Celsius, Fahrenheit, seconds, hours
Slide 22
Joke of the Day The Battle of the Lab Equipment Dads Mr.
Graduated Cylinder vs Mr. Thermometer
Slide 23
D.O.S. #8 - P Convert 34 inches in English units to metric
centimeters (2.54 cm = 1 inch) a.13.4 cm b.134 cm c.86 cm d.860
cm
Slide 24
DOS #8 - C When you clean up after a laboratory exercise:
a.Return all unused, uncontaminated chemicals to their properly
labeled storage area b.Dispose of all used solutions by carefully
diluting them with water in the sink c.Dispose of unbroken glass in
a special disposal container labeled for this purpose d.All of the
above
Slide 25
Joke of the Day Why is electricity so dangerous? Shocking News
- It doesnt conduct itself very nicely
Slide 26
Congrats Cross Country Varsity Girls 3 rd, JV Girls - 1 st and
Varsity Boys 3 rd Harley Davis 1 st in JV Will Maraggia 3 rd in
Varsity Volleyball was victorious over Bloomington Football had
some exciting plays, but unfortunately Ganado prevailed Livestock
Judging at Colorado County - ??
Slide 27
D.O.S. #9 A graduated cylinder has an initial volume of 50 ml
of water. After an irregular solid object is added the volume in
the cylinder rises to 60 ml. What is the volume of the solid? a.10
cm 3 b.10 ml c.Both a and b d.Neither a or b
Slide 28
Joke of the Day How do you write the chemical formula for the
following? BaNa 2 BaNaNa Contributed by Bubby Rowlett 6 th
period
Slide 29
June Birthdays 1 Ben Rogers 3 Matthew Bellanger 5 Martha Reyna
6 Abbie Pooley 9 Kevin Holdgraf & Carson Popp 11 Eddie Gonzalez
28 Leslie Smith 30 David Franz & Melissa Harms
Slide 30
July Birthdays 12 Jacob Novak 16 Courtney McGarrah 19 Alejandro
Garza
Slide 31
August Birthdays 5 Stephen Salazar 6 Tristan Garrison and
Lauren Morton 8 Amanda Ament 12 Amasty Harms & Courtney Sackett
14 Lane Peterson 20 A J Rosas 26 Brady Karl
Slide 32
Sept. Birthdays Erin Stryk 9/1 Jay Rubio 9/11 Irene Reyna 9/13
Karly Dyson 9/16 Teton Thedford & Ashton Brogger 9/19 Mason
Davis & Kim Morris 9/21 Matthew Yarborough 9/23 Katie Grantland
9/26 Chazidi Zambrano 9/27
Slide 33
D.O.S. #10 Imagine you are designing an experiment to compare
the ability of a golf ball and a ping- pong ball to bounce on sand.
Which of the following choices is a valid hypothesis? a.The golf
ball bounces highest b.A ping-pong ball bounces highest c.Neither
ball will bounce d.All of these are equally valid
Slide 34
Joke of the Day What crime was the out-of-control chemist
charged with? A salt and battery Assault
Slide 35
Happy Birthday Irene Reyna 9/13
Slide 36
D.O.S. #11 Which is NOT evidence of a chemical change
occurring? a.Bicycle chain has rusted after being out in the rain
b.Instant cold pack is activated once you break the pouch of water
inside c.First step to digesting food is to chew it up d.Adding
baking powder to a cake so it will rise when cooked
Slide 37
Joke of the Day The Love Story of Ice and Bunsen Burner
Slide 38
Happy Birthday Karly Dyson Sun., 9/16
Slide 39
D.O.S. #12 What is the correct order for the biomass Pyramid
(from bottom to top)? a.Carnivores, herbivores, producers
b.Producers, herbivores, carnivores c.Animals, vegetables, minerals
d.Minerals, vegetables, animals
Slide 40
Joke of the Day Space Monkeys
Slide 41
D.O.S. #13 What is an indication a chemical change has
occurred? a.Bubbles from formation of a gas b.Precipitate
c.Temperature of new products drops or increases d.All of the
above
Slide 42
Joke of the Day According to the mathematician who couldnt pass
chemistry. If the formula for water is H 2 O, then the formula for
ice should be (H 2 O) 3 --- H 2 O cubed since ice comes in cubes
Contributed by Amasty Harms 4 th period
Slide 43
Happy Birthday Ashton Brogger Teton Thedford
Slide 44
D.O.S. #14 Which of the following indicates a physical change
may have occurred? a.A substance changes color when another
substance is added and heat is released b.A white precipitate forms
when you mix two liquids c.A beaker of liquid bubbles when another
substance is added d.A block of wax melts quickly when heated in a
beaker
Slide 45
Joke of the Day Oh no, exclaimed the chemist, He threw sodium
chloride at me. Thats a salt Assault Contributed by Jade Trowbridge
4 th period
Slide 46
D.O.S. #15 As an athlete is running a 5 K race, her cells need
more oxygen. Which change will help her body meet the increased
demand for oxygen? a.Her heart beats more quickly b.Her pancreas
releasing more insulin c.Her breathing becoming more shallow d.Her
sweat glands becoming more active
Slide 47
Joke of the Day If H 2 O is water. What is H 2 O 4 *? Drinking,
swimming, bathing, washing * H 2 O for
Slide 48
D.O.S. #16 Scientists use which of the following to conduct
research a.Pythagorean Theorem b.Scientific Method c.Cafeteria Menu
d.Law of Wisdom
Slide 49
Thought for the Day Perseverance. A diamond is a chunk of coal
that stuck to its job even when it was under a lot of pressure
Slide 50
Homecoming Court
Slide 51
HAPPY BIRTHDAY Matthew Yarborough
Slide 52
D.O.S. #17 Which is a physical property of matter? a.Boiling
Point b.Reactivity c.Toxicity d.Corrosivity
Slide 53
Joke of the Day What kind of pants do biologists wear? Designer
genes (jeans)
Slide 54
Homecoming Court
Slide 55
D.O.S. #18 A block of iron has a volume of 10.0 cm 3 and a mass
of 17.0 g. What is the density of iron? a.170.0 g/cm 3 b.2.70 g/cm
3 c.0.590 g/cm 3 d.1.70 g/cm 3
Slide 56
Joke of the Day New Formula for Water
Slide 57
Senior Homecoming Court
Slide 58
Happy Birthday Katie Grantland
Slide 59
D.O.S. #19 What is the percent fat in a candy bar that has 250
g of fat and weighs a total of 595 g? a.345% b.238% c.42%
d.4.2%
Slide 60
Joke of the Day If you arent part of the solution, you are part
of the precipitate
Slide 61
Happy Birthday Chazidi Zambrano
Slide 62
D.O.S. #20 When a gas stove is used to cook food, methane gas
(CH 4 ) reacts with oxygen gas (O 2 ) and carbon dioxide (CO 2 )
and water (H 2 O) are produced. According to the law of
conservation of mass, which statement is true about this reaction?
a.Mass of methane gas burned must equal mass of carbon dioxide
produced b.The combined mass of carbon dioxide and water produced
must be equal to the combined mass of methane gas and oxygen burned
c.Some of the carbon atoms in the methane gas will be converted
into oxygen atoms d.If more oxygen is added to the reaction, more
carbon dioxide and water will be produced
Slide 63
Joke of the Day Why did the physicist think the chicken crossed
the road? Chickens at rest tend to stay at rest. Chickens in motion
tend to cross the road
Slide 64
Homecoming 2012 Beat Rockport
Slide 65
D.O.S. #21 What is one reason that dehydrated patients are
given intravenous solutions of pure water with a small amount of
dissolved salt rather than just pure water? a.To help prevent cells
from shriveling because of the pressure caused by osmosis b.So
pressure caused by osmosis will cause a net movement of salt into
cells c.So dissolved substances will be transported across cell
membranes and out the cells d.To help keep the concentration of
dissolved substances inside and outside the cell equal
Slide 66
Homecoming Joke Oxygen went to homecoming with Potassium. When
asked how the date went Oxygen replied, OK
Slide 67
CONGRATS HOMECOMING ROYALTTY David Franz King Jordin Jones
Grand Duchess
Slide 68
D.O.S. #22 Name a chemical property of a material a.Ductility
b.Freezing Point c.Corrosivity d.Solubility
Slide 69
Joke of the Day Did you hear about the chemist reading a book
on helium???? He just couldnt put it down Twilight
Slide 70
Homecoming Crowd
Slide 71
D.O.S. #23 What percentage of the calories in one serving of
tortillas comes from fat? a.2% b.4% c.6% d.9%
Slide 72
Joke of the Day Why are chemists great at solving problems?
They have all the solutions
Slide 73
Homecoming Royal Ladies
Slide 74
D.O.S. #24 How many grams are in 4.56 kilograms? a.45.6 gram
b.456 grams c.4560 grams d.45600 grams
Slide 75
Joke of the Day How did the herpetologist know he would get
married soon? He caught the garter snake
Slide 76
Thanks Shelby & Dad
Slide 77
D.O.S. #25 If an atom has 4 protons and 5 neutrons, how many
electrons must it have to remain neutrally charged? a.1 b.4 c.5
d.9
Slide 78
Joke of the Day Two atoms are walking down the street..
D.O.S. #26 Which population in the food chain is most likely to
have the greatest biomass? Grass White-tailed deer Mountain lions
Vultures a.Grass b.White-tailed deer c.Mountain lions
d.Vultures
Slide 81
Joke of the Day A foolish gardener planted a light bulb He
thought he would grow a Power Plant
Slide 82
Congrats The Cobra band won BEST IN CLASS AA And OUTSTANDING
DRUMLINE AWARD at the Lamar ISD And BEST SOLOISTS
Slide 83
FFA News Industrials Junior Team placed third in team judging
at Hempstead Dustin Hempels critter won best in class at the Heifer
Show
Slide 84
D.O.S. #27 Properties of metals include a.Bitter taste and
reactive with fats b.Easily form liquids or gases c.Are most often
anions d.Have free flowing electrons that make them good conductors
of electricity, shiny, ductile, and malleable
Slide 85
Joke for the Day What can you make from the chemicals of
Potassium, Nickel, and Iron? A KNiFe
Slide 86
D.O.S. #28 John and his partner are preparing glass tubing to
be used in their lab investigation. As John pushes a glass tube
through a rubber stopper the glass breaks and cut Johns hand. His
lab partner should first: a.Notify the teacher there is broken
glassware b.Clean-up the broken glass to prevent further injury
c.Notify the teacher immediately there has been an injury d.Remind
John to lubricate glass tubing and use a turning motion when
inserting glass tubing into stoppers to prevent breakage and
injury
Slide 87
Joke of the Day Wind power is very popular because it has lots
of fans
Slide 88
D.O.S. #29 How many significant figures does the following
measurement have? 0.00230 a.2 b.3 c.5 d.6
Slide 89
Joke of the Day The smooth talking IHS senior guy in Miss Hunts
science class says to the freshman girl, Baby, I know my chemistry,
and youve got one significant figure.
Slide 90
HAPPY BIRTHDAY Wayne Zbikowski
Slide 91
CONGRATS Courtney Sackett won BEST in SHOW for her Tiger Oil
Pastel at Jackson County Fair
Slide 92
D.O.S. #30 Which of these represents a compound? a.Silver
b.Salt c.Blueberry Muffin Mix (uncooked, loose berries) d.Oil and
Water
Slide 93
Joke of the Day What do you get in black socks? Black
holes
Slide 94
We Love Our Cobras Band 2A division champs at Edna Marching
Contest. Best 2A horn line. 3 rd place Overall in field including
big school bands. Football good game, but tough loss to Rice
Volleyball good games, but tough loss to Rice Cross County Girls 2
nd place team Boys - 3 rd place team. Will Maraggia 2 nd place.
Chandler Van Horn 5 th place. Colton Nagel his best race of the
year. Crisna Baez 5 th place Cheerleaders Nice dance moves High
School Rodeo Success Shelby Martin 10 th place in poles Jackson
County Fair Participants.
Slide 95
Slide 96
D. O. S. #31 - P Which statement is true about projectile
motion? a.Gravity is the only force that acts upon a projectile,
since we will assume air resistance is negligible b.Horizontal
velocity changes since no unbalanced forces act in that direction
c.Vertical velocity is influenced by gravity and range of distance
is impacted by angle of the sun d.At the maximum acceleration of a
projectile horizontal and vertical velocity are zero
Slide 97
D. O. S. #31 - C You need to go to the lumber yard to get some
wood for the frame of the patio deck you are building that has to
sit at a weird angle due to the location of your house vs. the
property line. You measure the following dimensions for each side.
8.45 m, 6.3 m, 4.33 m, and 5.2 m How much wood should you get at
the lumber yard? (Remember sig figs matter) a.24 m b.24.2 m c.24.3
m d.24.28 m
Slide 98
Joke of the Day What do you call a person who keeps on talking
when people are no longer interested? A Teacher. Like Miss
Hunt
Slide 99
Opportunity for Extra Points Attend Victoria Colleges
Information Night Tuesday, October 16th from 5:30 to 8:00 p.m. in
the VC Health Sciences Center This event will give prospective
students and their parents an opportunity to explore VCs areas of
study, financial aid options, scholarships, admissions
requirements, and student life activities. Visit with college
program people and/or employers in attendance and complete the VC
Info Night Interview Form from Miss Hunt Receive up to 10 extra
points on a major grade
Slide 100
Art Show Winners See Announcements
Slide 101
D.O.S. #32 - P Since the 1940s chemical insecticides have been
used to control insects that damage crops and spread disease.
However, such control efforts fail when insect pests become
resistant to insecticides as a result of -- a.Natural selection
b.Learned behavior c.Geographic isolation d.Asexual
reproduction
Slide 102
D.O.S. #32 - C A chemist observes a reaction that gives off an
odor similar to ammonia and the products turn from blue to red and
will not turn back to original color. This is evidence of what:
a.Inertia b.Physical change c.Chemical change d.Physical and
chemical changes
Slide 103
Joke of the Day What do you call a joke that is based on
cobalt, radon, and yttrium? CoRnY
GO COBRAS Good Try JV GO FOOTBALL and VOLLEYBALL.. Beat the
Cowboys Good Luck at Regional Band Contest Go FFA Judging Team at
Calhoun County Fair
Slide 107
D.O.S. #33 Which state change occurs when a solid goes directly
to a gas? a.Melting b.Sublimation c.Condensation d.Freezing
Slide 108
Joke of the Day How can you save someone with carbon and
praseodymium? Give them CPr Created by Cade Peterek
Slide 109
D.O.S. #34 If a person is 6-3 tall, how tall are they in
meters? (1 inch = 2.54 cm) a.191 m b.1.91 m c.16.0 m d.1.60 m
Slide 110
Joke of the Day What do you call a power failure? A current
event
Slide 111
D.O.S. #35 If the atomic mass of Phosphorous is 30.973761 and
the atomic number is 15. How many neutrons does it have? a.15 b.2
c.30 d.16
Slide 112
Joke of the Day A neutron bought a Dr. Pepper at the concession
stand..
Slide 113
HAPPY BIRTHDAY D J Hart
Slide 114
GOLDEN COBRA BAND Division 1 Superior Rating in Region 13
Competition
Slide 115
Celebrate Mole Day 2012 on Tuesday, Oct. 23 (10/23) from 6:02
am to 6:02 pm Activity Period Miss Hunts Room
Slide 116
D.O.S. #36 In a previous D.O.S., a solid placed in a graduated
cylinder had a volume of 10 cm 3. If its mass is 50 g., what is the
density? a.2 g/cm 3 b.0.2 g/cm 3 c.5 g/cm 3 d.60 g/ cm 3
Slide 117
Joke of the Day My friends son dropped out of chemistry class
at college After the third week he realized he was out of his
element
Slide 118
HAPPY BIRTHDAY Kenneth (Bubby) Rowlett
Slide 119
Good Luck at District Cross Country
Slide 120
Happy Mole Day 2 U A: Rock N Mole The mole is a unit of
measurement for the amount of substance or chemical amount.unit of
measurement amount of substance 6.02 x 10 23 atoms per mole * The
atomic mass unit = 1 mole of an element Q: What is Avogadros
favorite kind of music? Celebrate Mole Day 2012 on Tuesday, Oct. 23
from 6:02 am to 6:02 pm * Mole Day Song
Slide 121
D.O.S. #37 What is a mole? a. A lightly furry, little,
burrowing critter b.A small, dark spot on skin c.A unit of
measurement for the amount of substance 6.02 x 10 23 atoms d.All of
the above
Slide 122
Mole Day Activities for Science Club Remember ~ Its Avogadro
like avocado Which makes Guacamole Lets Explore More about the Mole
through a Lab Activity Lab Activity More Mole Day JokesMole Day
Jokes
Slide 123
D.O.S. #38 Which are the smallest parts of an atom? a.Neutrons
b.Nucleus c.Protons d.Electrons
Slide 124
Joke of the Day What are the favorite elements of doctors?
Helium and Curium
Slide 125
District Cross Country Results Varsity Girls took 1 st Varsity
Boys took 3 rd Both will advance to Regionals!
Slide 126
GO GIRLS
Slide 127
GO GUYS
Slide 128
D.O.S. #39 An ecosystem is a.Interactive system that includes
all parts of the physical environment b.The only place life can
exist c.The entire community of organisms that live there plants,
animals, fungi, & bacteria d.All of the above
Slide 129
Joke of the Day What do the doctors in yesterdays joke do if
they cant helium or curium sick people? They barium Which is also
what you do to dead chemistry teachers
Slide 130
D.O.S. #40 - P The three factors that actually do affect motion
are a.Velocity, acceleration, momentum b.Distance, time, speed
c.Friction, gravity, air resistance d.Reactions, actions, net
force
Slide 131
D.O.S. #40 - C Results of a scientific investigation are
communicated in which step? a.Hypothesis b.Research c.Data
collection and analysis d.None of the above
Slide 132
Joke of the Day A mushroom walks into a bar and announces, A
round of drinks for everyone! Another customer remarks, Well, he
seems like a fun guy. (fungi)
Slide 133
D.O.S. #41 What do you call a reaction that produces heat?
a.Exothermic b.Endothermic c.Enthalpic d.Intrinsic
Slide 134
Joke of the Day My doctor doesnt believe in anesthesia Hes
propane (pro-pain)
Slide 135
D.O.S. #42 - P What is the centripetal acceleration of a bucket
moving in a 5 m circular path with a velocity of 10 m/s? Where a c
= v 2 r a.0.5 m/s 2 b.2 m/s 2 c.20 m/s 2 d.50 m/s 2
Slide 136
D.O.S. #42 - C If there are 12 dozen pencils in a gross how
many individual pencils are there in 1 gross? a.1 b.12 c.13
d.144
Slide 137
Joke of the Day Gravity is a Law.. . Law Breakers will be
brought down
Slide 138
D.O.S. #43 Products of photosynthesis are: a.Glucose and oxygen
b.Water and carbon dioxide c.Oxygen and nitrogen d.Glucose and
nitrogen
Slide 139
Halloween Joke Why didnt the skeleton go skydiving? He didnt
have the guts to do it
Slide 140
D.O.S. #44 Plants and animals are dependent on some bacteria
because these bacteria a.Help recycle simple nutrients to the soil
b.Get energy from fermentation rather than respiration c.Are able
to make their own food by using energy from sunlight d.Are
engineered to remove hazardous wastes from the environment
Slide 141
Joke of the Day Two antennas met on a roof, fell in love and
got married. The ceremony wasnt much, but the reception was
excellent.
Slide 142
Congrats JV Football Go Varsity BEAT the BOBCATS
Slide 143
Good Luck at Regional Cross Country
Slide 144
HAPPY BIRTHDAY Kori Hessler (Saturday)
Slide 145
D.O.S. #45 Which atomic structures have the same number of
protons, but a different number of neutrons? a.ions b.isotopes
c.molecules d.none of the above
Slide 146
Joke of the Day What are the dullest elements? Bohrium and
Boron
Slide 147
Way to Go Cross Country Cobra Girls Cross Country placed 4 th
as a team Cobra Boys Cross Country placed 11 th as a team. Will
Maraggia placed 14 th with a time of 17:12 and Katlyn Strauss
placed 11 th with a time of 12:42. Congrats to Courtney High who
placed 3 rd with a time of 11:54 and Cassidy High who placed 10 th
with a time of 12:38. Both girls will be advancing to State!
D.O.S. #47 2 or more substances that can be separated by
physical means is called: a.Pure substance b.Mixture c.Colloid
d.Compound
Slide 154
Joke of the Day What is the Friendliest Element? Hydrogen (hi
drogen)
Slide 155
Physics Assignment Read Sections 4.1 thru 4.7 (pages 43 top of
53) Answer the questions along the way. Yes you need to write
question and be sure answer is a complete sentence using good
spelling and grammar
Slide 156
D.O.S. #48 When diluting hydrochloric acid for a lab simulating
the stomachs digestive system you should pour a.Acid into the water
b.Water into the acid c.Pour both simultaneously d.Both a. and
b.
Slide 157
Joke of the Day The Electrician Said.. You can kill a mosquito,
but you cant Kill a watt (kilowatt)
Slide 158
Thanks Veterans
Slide 159
CONGRATS 2 nd Team ALL DISTRICT Volleyball Team Darcie Moreno 1
st Team District 30AA Co-MV Setter Makayla Lenamon McKenna Zacek -
1 st Team All District 30AA Courtney High 5 th place at State Cross
Country. Cassidy High 35 th place Football way to end the season
with a win against the Sharks
Slide 160
DOS #49 Which scientist discovered the antibiotic penicillin?
a.Einstein b.Goodall c.Fleming d.Newton
Slide 161
Joke of the Day Why did the chicken cross the road? Isaac
Newtons First Law: Chickens at rest tend to stay at rest. Chickens
in motion tend to cross the road. Isaac Newtons Second Law: It was
pushed on the road with a force equal to its mass times
acceleration. Isaac Newtons Third Law: It was pushed on the road by
another chicken, which then went the opposite direction from the
road. Isaac Newtons Fourth Law: It was attracted to a chicken on
the other side of the road.
Slide 162
D.O.S. #50 - P The formula for speed (velocity) is? a.d x t b.d
/ t c.F x d d.F / d
Slide 163
D.O.S. #50 - C Chicken noodle soup is an example of: a.An
element b.A heterogeneous mixture c.A homogenous mixture d.A
compound
Slide 164
D. O. S. Checkpoint #2 Questions 26 - 50 TOMORROW Wednesday
10/27
Slide 165
Thought for the Day umph The difference between try and triumph
is a little umph.
Slide 166
Your Attitude is a Little Thing That Makes a BIG
DIFFERENCE
Slide 167
D.O.S. #51 Which scientist discovered electrons using the Plum
Pudding Model and a cathode ray tube? a.Bohr b.Thomson c.Dalton
d.Schrdinger
Slide 168
Joke of the Day What did the barrel racer do with her horse?
Rhodium
Slide 169
D.O.S. #52 This scientist devised the Atomic Theory a.J. Dalton
b.D. Pavlov c.S. Lothman d.A. Einstein
Slide 170
HAPPY BIRTHDAY Oscar Garcia (Sunday)
Slide 171
JUNIORS Bring your non-perishable food items to my room Between
Nov. 19 Dec. 7 Class with the most goods collected receives an Ice
Cream Party Courtesy of Student Council
Slide 172
D.O.S. #53 - P A student throws a tennis ball with a mass of
5.7 x 10 -2 kg into the air. What is the downward force on the ball
due to gravity? (where F = ma and a g = 9.8 m/s 2 ) a.9.8 N b.0.56
N c.0.17 N d.0.057 N
Slide 173
D.O.S. #53 Which scientists used cathode ray tubes to prove the
presence of protons and electrons, respectively? a.Bohr and
Rutherford b.Goldstein and Thomson c.Bohr and Thomson
d.Schroedinger and Goldstein
Slide 174
Joke of the Day What do you get when you cross a snake with a
physicist? A Bohr (Boa) Constrictor
Slide 175
GO BASKETBALL Girls at East Bernard Boys at Boling
Slide 176
D.O.S. #54 - P What organelle does bacteria lack that is the
housing unit for DNA? a.Flagella b.Golgi Apparatus c.Nucleus
d.Lysosome
Slide 177
D.O.S. #54 - C Mosely improved upon the original arrangement of
the periodic table as developed by Mendeleev. How did Mosely
construct his version? a.Alphabetically b.By atomic mass c.By
atomic number d.By year of discovery
Slide 178
Joke of the Day What did the scientist say when he found two
new isotopes of helium???? HeHe
Slide 179
Amaze Your Family & Friends with Thanksgiving Science
http://www.scienceoffcenter.org/science/202
-fork-balancing-an-avoid-on-thanksgiving- science-experiment-
Slide 180
Slide 181
D.O.S. #55 What are the charges of an oxygen atom and its
nucleus, respectively? a. 0, +8 b. -2, +8 c. +8, 0 d.+16, -2
Slide 182
Joke of the Day How would Sherlock Holmes have organized the
Periodic Table? Element TREE (elementary), my Dear Watson
Slide 183
HAPPY BIRTHDAY Luke Smith
Slide 184
Go Basketball Boys Varsity vs. Waelder at home Girls at Shiner
St. Paul
Slide 185
Canned Food Drive Help the needy Items critically needed at
this time include: canned goods, boxed dinners, pasta, pasta sauce,
baby cereal, and baby food Help your class win an ice cream party
Deliver cans by Fri., Dec. 7 Ms. Rockstrom - sophomores Ms. Hunt
juniors (rock) We are currently 2 nd Mrs. Griffith - seniors
Slide 186
D.O.S. #56 - Chem Which of these is the naturally occurring
isotope of Uranium? a.U 234 b.U 236 c.U 238 d.U 239
Slide 187
D.O.S. #56-P If Santa and his reindeer travel from the North
Pole to Vanderbilt (a distance of 5,000 miles) in 10 hours. What is
their velocity? (v = d/t) a.50,000 mph b.50,000 mph south c.500 mph
d.500 mph south
Slide 188
Joke of the Day What do you call a swim team made up of all
girls named Jennifer? Hydro-Jens (hydrogens)
Slide 189
D.O.S. #57 Define precipitate (from a chemistry perspective)
a.Insoluble product or by-product of a chemical reaction b.A
solvent/solute mixture c.Rain d.None of the above
Slide 190
Joke of the Day What is a thespians favorite element?
Actinium
Slide 191
D.O.S. #58 Which branch of science combines chemistry and
biology? a.Scientology b.Physiology c.Medicine d.Biochemistry
Slide 192
Joke of the Day Hydrogen and Oxygen are in a restaurant having
supper when Gold walks in. Hydrogen yells out Au, Get Out of
Here!
Slide 193
*** More News *** Boys. 1 st in Bloomington Tourney Will
Maraggia. MVP Jay Rubio. All-Tournament Team Evan Gregg
All-Tournament Statician Girls 5 th in Cobra Tourney
Slide 194
D.O.S. #59 - P A person taking antibiotics benefits from eating
yogurt that contains live and active bacterial cultures because the
bacteria a.Release enzymes that prevent the reproduction of viruses
b.May aid antibiotics by eating harmful bacteria in the human
digestive tract c.May restore the normal community of bacteria
living in human digestive track d.Are a major source of dietary
fiber, which helps provide energy needed to fight infection
Slide 195
D.O.S. #59 - C Thanks to the work of Marie and Pierre Curie and
their associates, radioactive materials have found a place in life
saving treatments. Which isotope is used to destroy cancer cells?
a.Americium 231 b.Carbon 14 c.Xenon 133 d.Cobalt 60
Slide 196
Joke of the Day What did Godzilla say when he ate the nuclear
power plant? EXPLOSIVE FLAVOR EXPLOSIVE FLAVOR
Slide 197
HAPPY BIRTHDAY Marco Chavarria
Slide 198
Great Job Theatre and Art Theatre Matthew Bellanger - director,
Chazidi Zambrano stage manager and techie, Tristan Garrison techie
Alejandro Garza the phantom techie Artists Shelby Martin, D J
Hart
Slide 199
D.O.S. #60 Rank the following radioactive rays from strongest
to weakest a.alpha, beta, gamma b.gamma, beta, alpha c.beta, gamma,
alpha d.beta, alpha, gamma
Slide 200
Joke of the Day Old musicians never die, they just de-
compose
Slide 201
D.O.S. #61 - P When a rock is suspended in air, it weighs 2.25
N. In water it weighs 1.8 N. When the rock is suspended in glycerin
it weighs 1.72 N. Which statement is true? a.Water exerts a greater
buoyant force on the rock than glycerin b.Glycerin exerts a greater
buoyant force on the rock than water c.The buoyant force exerted on
the rock in water and glycerin and water are the same d.None of the
above are correct
Slide 202
D.O.S. #61 Chem What is a helium nuclei called in nuclear
chemistry? a.Beta particle b.Positron c.Gamma ray d.Alpha
particle
Slide 203
Thought for the Day Success Comes in Cans. I Can You Can We Can
Everybody Can
Slide 204
HAPPY BIRTHDAY Celia Grymes
Slide 205
D.O.S. #62 - P If sample D is more basic than sample A, but
less basic than sample C which is a valid conclusion about the pH
of sample D? a.pH is less than 2.4 b.pH is greater than 5.6 c.pH is
between 2.4 and 11.9 d.pH is between 2.4 and 5.6 SamplepH A2.4
B11.9 C5.6 D
Slide 206
D.O.S. #62 - C What type of energy is stored in a candy bar?
a.Radiant Energy b.Chemical Energy c.Kinetic Energy d.Mechanical
Energy
Slide 207
Joke of the Day A horse can be ___________ to water, but you
cannot make him drink Lead (Pb)
Slide 208
WELCOME Mr. Mark Baker Donor Recruiter Consultant South Texas
Blood & Tissue Center
Slide 209
*** Final Results *** Student Council Can Drive: FRESHMEN:
1,584 SOPHOMORES: 640 JUNIORS: 579 SENIORS: 244 doing good for
needy families in Jackson County with 3,047 total cans with 3,047
total cans
Slide 210
Bully Plays Cast & Crew
Slide 211
Follow up on STBTC Visit Red Cord Program for high school
seniors Volunteer opportunities resume support Chemistry blood
& tissue typing, checking for diseases, mini-physical tests,
Physics centrifuge for separating 3 components of whole blood,
bloodmobile in motion, refrigeration Mrs. Drstata
Slide 212
D.O.S. #63 Donating blood provides which of the following life
saving components of whole blood and their purpose a.Red blood
cells to carry oxygen to tissues and organs b.Platelets that
provide for clotting to control bleeding c.Plasma helps sustain
blood pressure, deliver proteins & enzymes d.All of the
above
Slide 213
Joke of the Day What is Santas favorite element? HoHoHo
(Holmium) (submitted by Ben Rogers 4 th and Ashton Brogger
1st)
Slide 214
Canned Food Delivery
Slide 215
Outstanding Band Students All Region Band Chazidy Zambrano
Marco Chavarria Advanced from Regionals to Area in ATSSB all-state
band auditions Marco Chavarria
Slide 216
D.O.S. #64 South Texas Nuclear is an example of producing
energy from nuclear _______ a.Fusion b.Fission c.Confusion d.None
of the above
Slide 217
Joke of the Day Did you hear about the nuclear physicist who
went fission? He caught 4 red fish and a flounder (fishin)
Slide 218
D.O.S. #65 - C The time it takes for half the amount of a
radioactive material to undergo decay a.Millennium b.Half-life
c.Millisecond d.Half-years
Slide 219
D.O.S. #65 - P During a test of vehicle safety standards, four
different vehicles were driven at a test wall at a velocity of 35
km/h. Which one most likely hit the wall with the greatest force?
a.A bicycle b.A motorcycle c.A two-door sports car d.A four-door
SUV
Slide 220
Joke of the Day I'd like to make a chemistry joke right about
now... ..but all the good ones Argon :)
Slide 221
FAREWELL BEN We will miss you! Good Luck
Slide 222
Christmas Cheer for Needy Families
Slide 223
D.O.S. #66 - P A 144 gram baseball traveling with a velocity of
45 m/sec has the same momentum * as a 675 gram football traveling
at a velocity of: a.9.6 m/sec b.43.7 m/sec c.65 m/sec d.45 m/sec *
Momentum = m x v
Slide 224
D.O.S. #66 - C Element X has two known naturally occurring
isotopes. The mass and relative abundance of each isotope are shown
below What is the average atomic mass of Element X to the nearest
hundredth of an atomic mass unit? Record your answer 79.91 Relative
AbundanceMass (amu) 50.57%78.92 49.43%80.92
Slide 225
Joke of the Day My date last night was boron me. so iodine
alone tonight (contributed by Hannah Gabrysch and Vina Nguyen)
Slide 226
D.O.S. #67 Which liquid has the highest viscosity? Substance
Flow Rate (cm/sec) a. Vegetable Oil15.0 cm/sec b. Isopropyl
Alcohol32.4 cm/sec c. Corn Syrup0.73 cm/sec d. Mineral Oil1.19
cm/sec
Slide 227
Joke of the Day SCIENCE in the NEWS *** Astronomers were
excited this week at having isolated a brief sound which occurred
immediately before the Big Bang. Apparently, that sound was "uh
oh."
Slide 228
Moment of Silence Let us remember the students, teachers,
counselor, and principal of Sandy Hook Elementary
Slide 229
HAPPY BIRTHDAY Raven Gulledge
Slide 230
D.O.S. #68 - P DNA carries instructions for making:
a.Photosynthesis b.Proteins c.Replicated cells d.Offspring
Slide 231
D.O.S. #68 - C Which balanced nuclear equation represents the
neutron bombardment of Plutonium to create Lanthium and Rubidium?
a. 1 0 n + 239 94 Pu 145 57 La + 92 37 Rb + 1 0 n b. 1 0 n + 239 94
Pu 145 57 La + 92 37 Rb + 2 1 0 n c. 1 0 n + 239 94 Pu 145 57 La +
92 37 Rb + 3 1 0 n d. 1 0 n + 239 94 Pu 145 57 La + 92 37 Rb + 4 1
0 n
Slide 232
Thought for the Day Lets have a positive week and not have any
electron clouds hanging over our heads
Slide 233
D.O.S. #69 - P What would be the pressure exerted by a 55. kg
woman standing on one foot in stiletto heels with diameter of 0.75
cm? a.1200 N b.225 N c.73 N d.41 N w = mgP = Fg = 9.8 m/s 2 A
Slide 234
D.O.S. #69 - PoT What would be the volume fluid rate of a storm
water drainage ditch flowing at 2.0 m/s through a 0.91 m diameter
culvert pipe? a.1.3 m 3 / s b.1.8 m 3 / s c.2.2 m 3 / s d.5.7 m 3 /
s (Where V = Av)
Slide 235
D.O.S. #69 - C Transition metals, noble gases, metalloids, and
non-metals are examples of a.Periods of Elements b.States of Matter
c.Element Families d.None of the Above
Slide 236
Joke of the Day What should a chemist do who has become flabby?
Fermium Up
Slide 237
DECEMBER BIRTHDAYS 4 - Marco Chavarria 6 - Celia Grymes 17 -
Raven Gulledge 23 - Colton Nagel and Devin Osburn 26 - Cade Peterek
30 - Jeffrey Koch
Slide 238
Test Taking Reminder 1.Take a deep breath and exhale 2.Push the
frontal lobes of your brain together to engage thinking 3.In case
of panic or brain freeze, repeat steps #1 and #2.
Slide 239
D.O.S. #70 Refer to the periodic table for the following:
Elements in which group on the periodic table are least likely to
form chemical bonds? a.Noble Gases - Group 18 (far right) b.Alkali
Metals - Group 1 (far left) c.Transition Metals Groups 3 -12
(middle) d.Halogens Group 17 (right)
Slide 240
Joke of the Day Who has chlorine, gold, and sulfur? Santa
ClAuS
Joke of the Day 120 Ah (230) The Element of Surprise!
Contributed by Josiah Williams
Slide 244
HAPPY BIRTHDAY Madison Garza Evan Gregg
Slide 245
Joke of the Day What is the dieters element? Nobellium (no
belly)
Slide 246
D. O. S. Checkpoint #3 TODAY Questions 51 70 ** Physics &
Principles of Tech - Ignore Question 10 ** ** Chemistry Ignore
Question 9 **
Slide 247
Joke of the Day Did you hear about the microbiologist that was
not a good swimmer? His DNA was messed up and he almost drowned in
his own gene pool
Slide 248
Joke of the Day Why does hamburger have lower energy than
steak? Because it is in ground state
Slide 249
JANUARY BIRTHDAYS Holly Pavlicek 4 Jade Trowbridge 7 Madison
Garza & Evan Gregg 8 Logan Robinson 13 Miguel Ramirez 17 Alex
Biggs 18 Randy Bitterly 21 Savannah Cisneros 23 Leah Bullock &
Jordan Branum 24 Shelby Martin - 29
Slide 250
HAPPY BIRTHDAY Randy Bitterly Monday
Slide 251
D.O.S. #71 If Baby New Year weighs 8 pounds and 6 ounces on
earth, how much will he weigh on the Moon? a.8 pounds and 6 ounces
b.Less than 8 pounds and 6 ounces c.More than 8 pounds and 6 ounces
d.16 pounds and 12 ounces
Slide 252
Joke of the Day What is a music lovers favorite element? Cd
(Cadmium)
Slide 253
D.O.S. #72 - P The following are examples of abiotic factors in
an ecosystem except for: a.temperature b.weather c.bacteria
d.soil
Slide 254
D.O.S. #72 - C Nickel is one of the transition metals. Because
of its ability to lose electrons it is very conductive. If a nickel
atom loses 2 electrons its charge will be a.1 + b.2 + c.1 - d.2
-
Slide 255
HAPPY BIRTHDAY Savannah Cisneros
Slide 256
Joke of the Day I was going to make a joke about sodium and
hydrogen.. . But NaH From Holly Pavlicek, A J Rojas, and &&
????
Slide 257
HAPPY BIRTHDAY Leah Bullock Jordan Branum
Slide 258
Congrats, Shelby. Good Luck at Houston Livestock Show
Slide 259
Football ALL-DISTRICT
Slide 260
Boys Basketball - Varsity
Slide 261
Girls Varsity Basketball
Slide 262
Houston Art Show Advancers Shelby Martin in Painting Lauren
Ramon in Sculpture
Slide 263
UIL Results - Shiner Shiner UIL Invitational Meet last Thursday
evening:* Accounting: Courtney High 6 th Calculator Applications:
McKenna Zacek 5 th in 12 th grade, Jordon Nagel 1 st in 10 th
grade, 2 nd overall, Audrey Cate 2 nd in 10 th grade, 6 th overall,
the three of them along with Kayla Weixelman were 2 nd place team
Computer Applications: Kayley Smith 1 st, Brittany Berger 6 th
Current Issues and Events: Austin Sappington 6 th Feature Writing:
Lauren Ramon 3 rd News Writing: Dianna Charron 4 th Mathematics:
Audrey Cate 3 rd in 10 th grade, James Adams 2 nd in 9 th grade,
Cassidy High 3 rd in 9 th grade, Kate Crawford 4 th in 9 th
grade
Slide 264
UIL Results Shiner (cont.) Number Sense: Colleen Fellers 3 rd
in 10 th grade, Ashley Pattillo 6 th in 10 th grade Prose
Interpretation: Ethan Smith 4 th Extemporaneous Persuasive
Speaking: Ethan Smith 4 th Ready Writing: Jessie Peterson 1 st
Science: James Adams 1 st in 9 th grade, Maritsa Chavarria 2 nd in
9 th grade, Jessie Peterson 3 rd in 10 th grade, Travis Alexander 5
th in 10 th grade Social Studies: Austin Sappington, Sydney
Pattillo, April Jungbauer and Colleen Fellers were 2 nd place team
Spelling & Vocabulary: Jordan Williams 1 st, Landry Mikulec 5
th, the two of them along with Matthew Bellanger and Chazidi
Zambrano were 1 st place team
Slide 265
UIL Results - Calhoun Congratulations to the CX Debate team of
Holly Pavlicek and Ethan Smith for placing 2 nd in the Calhoun
Debate Tournament last Saturday. They were undefeated in all 4
rounds of the debate. ****** Leah Bullock and her partner Sara
Adams won 2 of their 4 rounds. Kim Morris and partner Austin
Sappington scored a win as well. Thanks to Kevin Holdgraf for
pinch-hitting on a CX Debate team at the last minute, and never
participating before and also doing poetry rounds. He and Brittany
Gregg won 2 out of their 4 rounds, one of those against last years
state champion school of Boling.
Slide 266
D.O.S. #73 Except for helium, a full orbital of valence
electrons equals a.2 b.4 c.6 d.8
Slide 267
Joke of the Day Are you made of copper and tellerium? Because
you are very CuTe Contributed by Caitlin Ressman, Melissa Harms,
Amasty Harms, and David Franz
Slide 268
HAPPY BIRTHDAY Shelby Martin
Slide 269
D.O.S. #74 The elements that make the best semiconductors for
computers, phones, etc. are the - a.Metals b.Metalloids
c.Non-metals d.Rare earth metals
Slide 270
Joke of the Day Dont listen to an atom. they make up everything
Contributed by Adam (Atom) J Rosas
Slide 271
D.O.S. #75 Which element has the greater atomic (molar) mass?
a.Tin b.Xenon c.Mendelevium d.Osmium
Slide 272
Joke of the Day The Cation Exclaimed Im positive that a free
electron was stripped off a me. Youve gotta keep your ion em.
Slide 273
Houston Livestock Show Winners Gold Lauren Ramon Red Jordin
Jones, Halley Longstreet, & Shelby Martin White Randy Bitterly,
Selena Capak, Madison Gloyna, Katie Grantland
Slide 274
SENIORS Scholarship and Financial Aid Meeting TONIGHT at 6:00
pm in Library
Slide 275
D.O.S. #76 Calculate the dissolving rate of 5 grams of sugar in
300 ml of water in grams per second if it takes 2 minutes to
dissolve a.0.04 g/sec b.2.5 g/sec c.0.016 g/sec d.60 g/sec
Slide 276
Joke of the Day Famous physicist Werner Heisenberg was pulled
over by a policeman.. The officer asked him if he knew how fast he
was going. Heisenberg replied, No - I dont know how fast I was
going, but I am pretty sure I know where I am.
Slide 277
All District Volleyball
Slide 278
HAPPY BIRTHDAY Hunter Foreman (on Sunday)
Slide 279
D.O.S. #77 - P Parthenogenesis: a type of asexual reproduction
in which an organism is produced from an unfertilized egg A female
spring peeper frog produces 200 eggs through parthenogenesis. If
all the eggs hatch, they will produce a.50 females and 150 males
b.100 females and 100 males c.150 females and 50 males d.200
females and 0 males
Slide 280
D.O.S. #77 - C What is the electron configuration for sulfur?
a.1s 2 2s 2 2p 6 3s 2 3p 4 b.1s 2 2s 2 2p 2 3s 2 3p 8 c.1s 2 2s 2
2p 4 3s 2 3p 6 d.1s 2 2s 2 3s 2 2p 6 3p 4
Slide 281
Joke of the Day What did the maitre d' say when oxygen,
hydrogen, sulfur, sodium, and phosphorous walked into his
restaurant? OH SNaP!
Slide 282
Yoakum Powerlifting Meet Boys Powerlifting Team Placed first
114s Jesus Rios 1 st place Bradley McGill 3 rd place 123s Kayden
Kurtz 6 th place 132s Teton Thedford 2 nd place Rhett Musser 5 th
place
Slide 283
Boys Powerlifting - Yoakum 148s Daniel Santillan 9 th place
165s Marco Chavarria 3 rd place Kevin Holdgraf 10 th place 181s Eli
Milner 2 nd place Jesse Chavarria 6 th place
Slide 284
198s Jordan Branum 3 rd place Dustin Hempel 4th place Sean
Bastain 9 th place 220s Travis Alexander 2 nd place Brady Vickery 8
th place 242s Mason Davis 2 nd place SHWs Levi Perry 5 th
place
Slide 285
Yoakum Results - Girls Maryssa Alvarado 4 th place Cerinity
Venglar 5 th place Katriena Shaw 6 th place Amasty Harms 6 th place
Haley Branum 7 th place
Slide 286
D.O.S. #78 - P GROUND FRESH DAILY LEAN NATURAL GROUND BEEF
85/15 This product may contain bacteria that can cause illness if
not handled and cooked properly Store raw meat in freezer or fridge
Wash hands, utensils, and cutting boards thoroughly after use Cook
meat thoroughly Refrigerate leftovers immediately Based on the
information on the label shown to the left, illness- causing
bacteria can survive and multiply only a. on cutting board surfaces
b.for short periods of time c.inside a freezer d.within a specific
temperature range
Slide 287
D.O.S. #78 - C Which elements have five valence electrons?
a.Those in Group V b.Those in Group X c.Those in Group XV d.Those
in all three of these Groups
Slide 288
Joke of the Day Are you made of beryllium, gold, and titanium?
Because you are BeAuTi-ful Contributed by Logan Robinson
Slide 289
Welcome Kayla Nelson
Slide 290
D.O.S. #79 A circle graph would best communicate a conclusion
about an investigation involving: a.Proportions by mass of three
metals in an alloy b.Amounts of heat released by three chemical
reactions c.Amounts of force required to accelerate three different
masses d.Electrical conductivity of three salt solutions
Slide 291
Joke of the Day What did one ion say to the other? Ive got my
ion you (eye on)
Slide 292
HAPPY BIRTHDAY Brandon Garcia
Slide 293
D.O.S. #80 Water is called a polar molecule because: a.Water
molecules can be positively charged and negatively charged b.Water
is known as the universal solvent c.Water molecules have a partial
positive end and a partial negative end d.Sugar crystals easily
dissolve in water
Slide 294
Joke of the Day Death Row Dummy
Slide 295
Way to Go CX Debaters State Bound Holly Pavlicek & Ethan
Smith 1 st in District Leah Bullock& Sara Adams 2 nd in
District
Slide 296
Golden Cobra Band Way to Go Solo and Ensemble Headed to State
are. Brass Choir Woodwind Choir Soloists Division I rating Marco
Chavarria Trumpet, Brock Werckle Trumpet, Jazmin Barns -
Baritone
Slide 297
Headed to State Band Carson Popp Bubba Garcia Oscar Garcia
Hunter Goyen Marco Chavarria Ashley Pattillo Brianna HendryRay
Henry Jace Pfuhl Matthew Bellanger Cassie LuhnBrian Landry Hunter
EndressBrendon Miller Jazmin BarnesCerenity Venglar Dee Bee
JoinesSerina Salazar Kadie StindtCeleste Tellez Sydney Pattillo
Chazidy Zambrano Marissa HartfieldAudrey Cate
Slide 298
Students who will be taking Dual-Credit courses for the
2013-2014 school year will need to attend a MANDATORY Orientation
meeting hosted by Victoria College TONIGHT Feb. 11 th at 6:00 pm in
the high school library. At least one parent and their student must
attend.
Slide 299
D.O.S. #81 The most reactive family of elements with an
oxidation number of 1+ is: a.Alkali Earth Metals b.Rare Earth
Metals c.Alkali Metals d.Transition Metals
Slide 300
Joke of the Day Why are the Country Music team of Brooks and
Dunn no longer together? They dissolved their partnership (or they
split like an atom)
Slide 301
HAPPY BIRTHDAY Crisna Baez
Slide 302
NOTE to ALL WHO LEAVE NOTEBOOKS in ROOM Take your notebooks
with you or put them on bookcases so custodians can spray with
disinfectant.
Slide 303
D.O.S. #82 Carbon dioxide, hydrochloric acid, and sulfur
trioxide are major air pollutants. These compounds are formed as
byproducts from the combustion of fossil fuels. The bonds between
these elements are called _________ and form by ________________
a.Ionic, transferring electrons b.Ionic, sharing electrons
c.Covalent, transferring electrons d.Covalent, sharing
electrons
Slide 304
Joke of the Day Why did Carbon and Hydrogen get married? They
bonded the moment they met
Slide 305
D.O.S. #83 A plant has a change in its DNA that makes it more
resistant to a species of harmful bacteria. What will most likely
happen as a result of this mutation? a.The plant will not survive
long enough to reproduce b.The species of harmful bacteria will
become extinct c.Over time the number of harmful bacteria will
increase d.Over time the number of resistant plants will
increase
Slide 306
Joke of the Day When Archimedes got up out of the bath and
noticed how much water had spilled out of the tub, he said, "I've
got to get out of displace!"
Slide 307
D.O.S. #84 - P It takes a power lifter 4.0 seconds to lift a
barbell 1.5 meters. He exerts a force on the barbell of 1500
newtons. About how much power does the power lifter use to lift the
barbell? (where P = W/t and W = F x d) a.375 watts b.563 watts
c.2250 watts d.9000 watts
Slide 308
D.O.S. #84 - C See TEA sample Chemistry EOC questions. Problem
6 on page 4
http://www.tea.state.tx.us/student.assessment/staar/testquestions/
Slide 309
Joke for Valentines Day An electron is courting an atom and
keeps orbiting around the atom to get it's attention. Exasperated
from all the attention, the atom asks, "Why do you persist in
running these circles around me?" In reply the electron says, "I'm
strangely attracted to you."
Slide 310
Two 4 Thursday Joke You'd be great as my Valentine .I'm
attracted to you, so please don't repel me
Slide 311
HAPPY BIRTHDAY Kayden Kurtz Treats in Honor of all our February
Birthday People Hunter Foreman (2/3), Brandon Garcia (2/7), Crisna
Baez (2/12), and Austin Sappington (2/17)
Slide 312
D.O.S. #85 Refer to the periodic table for the following:
Elements in the far left groups (Groups 1 & 2) on the periodic
table are most likely to form chemical (ionic) bonds with which
group? a.Noble Gases - Group 18 (far right) b.Metalloids parts of
Groups 13, 14, 15, & 16 (left) c.Transition Metals Groups 3 -12
(middle) d.Halogens Group 17 (right)
Slide 313
Joke of the Day Why did the white bear dissolve in water?
Because it was a polar bear
Slide 314
HAPPY BIRTHDAY Austin Sappington (Sunday 2/17)
Slide 315
Needville UIL Results Accounting: April Jungbauer 2 nd
Calculator Applications: Jordon Nagel 2 nd, together with Audrey
Cate and Morgan Gabrysch 2 nd place team Computer Science
(written): Luke Dvorak 4 th Feature Writing: Vina Nguyen 3 rd News
Writing: Dianna Charron 2 nd, Haley Wood 3 rd, Vina Nguyen 4 th
Headline Writing: Haley Wood 5 th Literary Criticism: Kyle Fikes 2
nd, Lorrin Kuntz 5 th Ready Writing: Jessie Peterson 4 th Social
Studies: Austin Sappington 4 th, together with April Jungbauer and
Colleen Fellers 2 nd place team Spelling & Vocabulary: Jordan
Williams 1 st, Audrey Cate 2 nd, Jace Pfuhl 4 th, together with
Chazidi Zambrano 1 st place team
Slide 316
PowerLifting Industrial Meet IHS Boys. First Place 114s Jesus
Rios 1 st place- also Outstanding Lifter for the lite platform
114-165 Kayden Kurtz 4 th place Bradley McGill 5 th place 123s
Trenton Thedford 1 st place 132s Daniel Santillan 5 th place Rhett
Musser 165s Marco Chavarria 2 nd place Ethan Brown 4 th place Kevin
Holdgraf 181s Jordan Branum 1 st place Eli Milner 2 nd Place Jesse
Chavarria 4 th place
Slide 317
Boys PowerLifting 198s Shawn Bastian 4 th place Devon
DelosSantos 7 th place 220s Dustin Hempel 1 st place Travis
Alexander 2 nd place Brady Vickery 5 th place 242s Mason Davis 1 st
place SHW Levi Perry
Slide 318
Girls Powerlifting Industrial Meet IHS Girls 6 th Place 123s
Haley Branum 3 rd Place 181s Maryssa Alvarado, 3 rd Place Cerenity
Venglar, 4 th Place Amasty Harms, 5 th Place
Slide 319
D.O.S. #86 Which question cannot be answered by experimentation
using a scientific approach? a.Does hot water freeze faster than
cold water? b.Will wearing a copper bracelet reduce arthritis
symptoms? c.Do roses smell better than carnations? d.Will popcorn
kernels soaked in water produce a greater volume of popped corn
than dry kernels?
Slide 320
Joke of the Day What is a cation afraid of? A dogion
Slide 321
D.O.S. #87 Cohesion is the tendency of water molecules to:
a.Push apart b.Stick together c.Stick to other polar substances
d.None of the above
Slide 322
Joke of the Day Why was a mole of oxygen excited when she
walked out of the bar? She got Avogadro's number!
Slide 323
D.O.S. #88 - P Why is a ship with a hollow steel hull able to
float in seawater? a.Ship displaces a volume of seawater that
weighs more than the ship b.Density of steel is greater than the
density of seawater c.Buoyant force on the ship is less than the
weight of the ship d.Buoyant force on the ship is less than the
weight of the seawater displaced by the ship
Slide 324
D.O.S. #88 - C What is an example of a diatomic molecule? a.Na
b.Silver c.SO 4 d.Cl 2
Slide 325
Joke of the Day What is a cans favorite sport? Tin-is
(tennis)
Slide 326
Congrats Girls Golf Hannah Gabrysch tied for First place
individual 1st place team
Slide 327
D.O.S. #89 Lightening has an enormous amount of energy since it
is composed of plasma. The state of matter called plasma exists in
which temperature range? a.Less than 100 o C b.Over 100,000 o C
c.Between 100 o C to 1,000 o C d.In any of these
Slide 328
Joke of the Day What is the Funniest Element? He-He-Helium
Contributed by Amnasty Harms
Slide 329
D.O.S. #90 CaCl 2 is a salt used for making cheese, de- icing
highways, drilling mud additive, waste water treatment, and many
other everyday applications. What is the preferred formula for this
binary ionic compound? a.Calcium Dichlorine b.Monocalcium
Dichloride c.Calcium Chloride d.Calcium Cholorodide
Joke of the Day Sign on the Electric Companys Marquee We would
be delighted if you pay your bill. However, if you don't, you will
be De-lighted
Slide 332
End of DOS to date in 2012 - 2013
Slide 333
Thought for the Day You dont really understand something until
you can explain it to your grandmother -- Albert Einstein
Slide 334
Joke of the Day Q: What's the difference between a
mathematician and an experimentalist? A: A mathematician thinks
that two points are enough to define a straight line while an
experimentalist wants more data.
Slide 335
Thought of the Day Success Takes Purpose, Planning, Practice,
and Patience
Slide 336
Joke of the Day How Physics Saves Lives
Slide 337
Joke of the Day The Native American Tale of the Pythagorean
Theory
Slide 338
Slide 339
Joke of the Day How do you know a banana is sunburned? It
peels
Slide 340
Joke of the Day The Scientists and God
Slide 341
Joke of the Day What are a tailors favorite elements? Sodium
(sew) Mendelevium
Slide 342
Joke of the Day What is Mickey Mouses favorite element?
Plutonium
Slide 343
Joke of the Day What do you get if you chop an avocado into
6.022 x 10 23 pieces? Guaca-MOLE
Slide 344
Joke of the Day The Learning Pill
Slide 345
Joke of the Day Some say chemists are the salt of the earth,
others would disagree
Slide 346
Joke for the Day Someone stole the letter between Q and S. How
do you know? Argon (R gone)
Slide 347
Joke of the Day What is Dorothy and Totos Favorite Element?
Osmium (Oz)
Slide 348
Joke for the Day What is a friends favorite element?
Paladium
Slide 349
Joke of the Day What did the Food Critic say? Iodine at only
the best restaurants
Slide 350
Joke of the Day Why didnt the skeleton go sky diving? He didnt
have the guts to do it
Slide 351
Joke of the Day If Estonia, Latvia, and Lithuania are the
Baltic States Then Germany, Poland, Sweden, and Finland must be the
COBALTIC states
Slide 352
Joke of the Day What does DNA stand for? National Dyslexics
Association
Slide 353
Joke of the Day What is PoO 8 and why is it important? To
Polon-ate plants and flowers whoops - it really would be called
polonium octoxide if it could exist
Slide 354
Joke of the Day Chemists can be Pb to H 2 O, but you cant make
them drink Lead
Slide 355
Joke of the Day What did the bug say when he hit the windshield
of a car? I will never have the guts to do that again
Slide 356
Joke of the Day What element do moles love to study in
chemistry? Molybdenum
Joke of the Day Why do chemists like nitrates so much? They are
cheaper than day rates
Slide 359
Joke of the Day Anyone know any jokes about sodium? Na
Slide 360
D.O.S. #94 The numbers in the chemical formula 2Na(CO 3 )
represent: a.Moles, Superscript b.Coefficient, Subscript
c.Coefficient, Moles d.Superscript, Subscript
Slide 361
Joke of the Day What is a bakers favorite element? Fluorine
(flour-ine)
Slide 362
Joke of the Day What are a merchants favorite elements?
Selenium or Sulfur
Slide 363
D.O.S. #95 Which of the following coefficients balance this
equation? ___ Fe + ____ O 2 ___ Fe 2 O 3 a.4, 3, 2 b.2, 3, 1 c.1,
3, 2 d.2, 0.6, 1
Slide 364
D.O.S. #96 Which statement about solution chemistry is true?
a.Solvents and solutes are the same b.Solutes dissolve solvents
c.Solvents dissolve solutes d.None of the above
Slide 365
Joke of the Day Why is organic chemistry so hard? It takes
alkynes of studying
Slide 366
Thought for the Day
Slide 367
Joke of the Day watt A wise man knows whats watt
Slide 368
Joke of the Day Two chemists walk into a restaurant. Being
clever, the first orders some H 2 O. The second one says, That
sounds good. Ill have some H 2 O too. The Second Chemist Died HOW?
H 2 O too = H 2 O 2 (hydrogen peroxide)
Slide 369
D.O.S. #100 How much power is exerted by a 50 N boy running 100
meters in 5 seconds? (where P = W/t and W = F x d) a.2.5 watts
b.550 watts c.1000 watts d.25,000 watts
Slide 370
D.O.S. #101 Which of the factors listed are limiting factors in
an ecosystem? a.Food and water b.Space c.Shelter d.All of the
above
Slide 371
Joke of the Day What is the funniest element in prison? Silicon
(Silly convict)
Slide 372
Joke of the Day If sound does not travel in a vacuum, then why
are vacuums so noisy???????
Slide 373
D.O.S. #103 Thermal pollution occurs when human activities
cause the temperature of lakes and rivers to rise. Why are fish
most likely to be harmed by long-term thermal pollution of the
water in which they live? a.The solubility of oxygen in the water
decreases b.The solubility of carbon dioxide in the water increases
c.The solubility of fertilizers, such as potassium chloride will
decrease in the water d.The solubility of quartz crystals will
increase in the water
Slide 374
Thought for the Day Teachers open the door, but you must enter
the door by yourself -- Ancient Chinese Proverb
Slide 375
D.O.S. #104 The solubility of which compound is impacted the
most by increasing temperature? a. KBr b. NaClO 3 c. NaCl d. KNO 3
Grams solute/100 g H 2 O
D.O.S. #105 Why does a carbonated drink stay bubbly before the
cap is removed from the bottle? a.Because the liquid temperature is
warmer than the surrounding conditions, which keeps the carbonated
gas in solution b.Thats what carbonation means. Duh. c.Since the
liquid molecules weigh more they keep the bonded gases in solution
d.Because pressure remains higher inside a closed container, which
increases the solubility of the carbon dioxide gas
Slide 378
Joke of the Day What is the friendliest acid? HI -
hydroiodic
Slide 379
Joke of the Day Evan asked the cat sitting next to him if he
had any Sodium Hydrobromite And he said, NaBrO
Slide 380
Joke of the Day How do you eat DNA spaghetti? With a
Replication Fork
Slide 381
Joke of the Day Its amino world without chemists Translation:
Its a mean old world without chemists
Slide 382
YOU DID IT! TAKS is OVER For some it may be your last
FOREVER
Slide 383
Joke of the Day What did the momma volcano say to the baby
volcano? I lava you
Slide 384
The following slides are duplicates or unused stuff from 2011
2012
Slide 385
Given: Sugar2 cups 432 grams Rolled Oats3 cups 258 grams If the
volume ratio of the sugar to the rolled oats (oatmeal) measured is
2 to 3, what is the mass ratio expressed in whole numbers when
measured in grams? a.2 to 3 b.5 to 3 c.3 to 2 d.3 to 5 D.O.S.
#98
Slide 386
Tongue-in-Cheek Thought for the Day 6 Phases of a Project
1.Enthusiasm 2.Disillusionment 3.Panic 4.Search for the Guilty
5.Punishment of the Innocent 6.Praise and Honors for the
Non-Participants Lets keep the 6 Steps of Scientific Method
instead
Slide 387
Thought of the Day Winners find ways to make things work.
Losers find excuses as to why things dont work.
Slide 388
D.O.S. #105 The solubility of which compound is impacted the
least by increasing temperature? a. KBr b. NaClO 3 c. NaCl d. KNO 3
Grams solute/100 g H 2 O
Slide 389
Joke of the Day Miss Jones 2 nd Grade Class
Slide 390
Joke of the Day What kind of shoes do robbers where?
Sneakers
Slide 391
Joke for the Day An Engineer, a Physicist, and a Mathematician
are Staying in a Hotel.
Slide 392
Thought of the Day Curious people ask questions Determined
people find answers
Slide 393
Joke of the Day What is the Funniest Element? He-He-Helium
Slide 394
Joke of the Day What do you do with dead chemists and chemistry
teachers? Barium
Slide 395
D.O.S. #34 C, P If a person is 6-3 tall, how tall are they in
meters? a.191 m b.1.91 m c.16.0 m d.1.60 m
Slide 396
Joke of the Day What do doctors do with sick people?
Slide 397
Joke of the Day A proton, an electron, and a neutron went to
dinner.
Slide 398
D.O.S. #43 The scientist who devised the first periodic table
was a.Democritus b.Dalton c.Mosely d.Mendeleev
Slide 399
Joke of the Day If a tailors favorite element is Sodium, what
is a tailors second favorite element?
Slide 400
D.O.S. #46 How do you determine the number of neutrons in an
atom? a.Equals the number of protons b.Equals the number of
electrons c.Atomic mass minus number of protons d.Atomic mass
divided by number of protons
Slide 401
D.O.S. #47 Which ions carry a negative charge? a.Anions
b.Cations c.Protons d.Electron
Slide 402
Joke of the Day What did Carbon-14 wear when it got cold
outside?
Slide 403
D.O.S. #51 The nucleus of an atom contains which 2 subatomic
particles? a.Neutrons and protons b.Neutrons and electrons
c.Protons and electrons d.None of these
Slide 404
D.O.S. #56 How many groups are there on the periodic table? a.1
b.7 c.12 d.18
Slide 405
Joke of the Day What did the Lone Ranger say to his horse?
HIOAg
Slide 406
Joke of the Day What is a ship captains least favorite element?
Zinc
Slide 407
Joke of the Day CSI Vanderbilt ~ The body of a man was
discovered in the gym today.
Slide 408
Joke of the Day Why dont scientists make great pet owners?
Slide 409
D.O.S. #71 IPC & PTEC Which of the following are examples
of corrosive materials? a.Battery Acid pH 2 b.Baking Soda pH 9
c.Glycerin pH 7.3 d.Gasoline pH 6.8
Slide 410
Thought for the Day
Slide 411
D.O.S. #74 The Noble Gases follow which rule: a.Octet
b.Newtonian c.Algebraic d.Playground
Slide 412
Thought for the Day
Slide 413
D.O.S. #85 How many neutrons does mercury have? a.12 b.80 c.201
d.121
Slide 414
D.O.S. #87 Which of these are states of matter? a.Gas b.Liquid
c.Solid d.All of These
Slide 415
D.O.S. #89 - Chem How many valence electrons does Carbon have?
a.1 b.2 c.4 d.8
Slide 416
D.O.S. #91 The formula for speed (velocity) is? a.d x t b.d / t
c.F x d d.F / d
Slide 417
Joke of the Day Mathematician: Pi r squared Baker: No! Pies are
round, Cakes are square! HAPPY DAY 3.14.2011
Slide 418
D.O.S. #96 Research shows taking aspirin or medicines
containing salicylate compounds during recovery from a viral
infection (such as the flu) can cause a potentially deadly disease
of the brain and liver called Reyes Syndrome. Which over the
counter medicine is considered unsafe while recovering from a viral
infection? a.Multisymptom cold medicine with Doxylamine Succinate,
Dextromethrophan Hydrobomide, Acetaminophen, Pseudoephedrine
Hydrochloride b.Motion sickness tablet containing dimenhydrinate
c.Chewable antacid tablet with Famotidine, Calcium Carbonate, and
Magnesium Hydroxide d.Medicine for upset stomach with active
ingredient Bismuth Subsalicylate
Slide 419
D.O.S. #97 Which type of bonds do metals and non- metals form?
a.Metallic b.Ionic c.Covalent d.Multiple
Slide 420
D.O.S. #98 Tuberculosis is a contagious disease that usually
occurs as an infection of the lungs. Symptoms include persistent
cough, fever, fatigue, night sweats, and unexplained weight loss.
TB is most likely transmitted by a.Mosquito bites b.Blood
transfusions c.Through the air d.Through the water
Slide 421
D.O.S. #100 One gram of protein has an energy value of about 4
Calories. An athlete wants to increase the percentage of Calories
from protein in his diet. Which one of these would have the
greatest percentage of Calories from protein? a.An energy bar with
19 g of protein and 210 Calories total b.An energy bar with 14 g of
protein and 200 Calories total c.An energy bar with 16 g of protein
and 230 Calories total d.An energy bar with 20 g of protein and 280
Calories total
Slide 422
D.O.S. #38 The amount of a substance that contains 6.022 x 10
23 particles (one mole) of that substance was named in honor of
which famous scientist? a.Green b.Newton c.Avogadro d.Fleming
Slide 423
D.O.S. #105 A gardener lifts a bag filled with compost. If the
bag has a mass of 36 kilograms, what is the minimum amount of work
the gardener must do to lift the bag to a height of 0.5 meter?
a.36.5 J b.72.0 J c.176.4 J d.352.8 J
Slide 424
Joke of the Day What did one electron say to the other who was
having a bad day? Dont get excited. Youll work yourself into a
state.
Slide 425
D.O.S. #109 Which is a measure of energy? a.Joule b.Watt
c.Neither A or B d.Both A and B
Slide 426
D.O.S. #113 April 22 commemorates: a.Earth Day across the world
b.US Naturalist and Sierra Club Founder John Muirs birthday who
helped preserve the California redwood trees c.Proud Science Nerd
& Teacher Miss Hunts birthday d.All of the above
Slide 427
Joke of the Day What do you get when you cross an ester of
plastic with a hare? The Ester Bunny
Slide 428
NOTE The following DOS questions are in the pool to be used.
They have not been used in current school year as of yet
Slide 429
Given: Sugar2 cups 432 grams Rolled Oats3 cups 258 grams If the
volume ratio of the sugar to the rolled oats (oatmeal) measured is
2 to 3, what is the mass ratio expressed in whole numbers when
measured in grams? a.2 to 3 b.5 to 3 c.3 to 2 d.3 to 5 D.O.S.
#32
Slide 430
D.O.S. #96 The pH of acid rain - a.Less than 5.6 b.7.0
c.Greater than 12.9 d.Between 5.6 12.9
Slide 431
D.O.S. #98 What is the formula to convert mass to weight, where
g is acceleration due to gravity? a.F = m + g b.F = m - g c.F = m/g
d.F = mg
Slide 432
D.O.S. #102 Golden-cheeked warblers are an endangered species
of bird that nests only in Central Texas. They nest in ash juniper
trees and feed on spiders and insects. Brown- headed cowbirds
sometimes lay eggs in the warblers nests. Blue jays are known to
eat young birds including golden-cheeked warblers. The survival of
golden-cheeked warblers would be threatened by an increase in the
a.Spread of a virus fatal to blue jays b.Predation of cowbirds by
red-tailed hawks c.Clearing of ash juniper trees for farm and ranch
land d.Local spider population due to mild winters
Slide 433
D.O.S. #104 What is the primary name for the ionic compound
CaCl 2 ? a.Dichlorine calcium b.Chlorinated calcium c.Calcium
dichloride d.Calcium chloride
Slide 434
D.O.S. #107 Adhesion is the tendency of water molecules to:
a.Push apart b.Stick together c.Stick to other polar substances
d.None of the above
Slide 435
D.O.S. #108 Histamine is a polar chemical that can lead to an
allergic response when it is released by the bodys immune system.
Antihistamines are drugs that can help prevent allergic reactions
associated with histamines. Antihistamines molecules are similar to
those of histamines in size, shape, and polarity. How does an
antihistamine most likely prevent the effects of histamine?
a.Increases diffusion of histamine across membranes of target cells
b.Binds to histamine receptors on the surfaces of target cells
c.Causes target cells to increase production of histamine receptors
d.Blocks histamine receptors found in the cytoplasm of target
cells
Slide 436
D.O.S. #109 Students traveling to South Padre Island for Spring
Break can average 130 k/h. If the distance from IHS to their hotel
on the beach is 585 k, how long will it take them? a.4.5 hours b.2
hours c.6 hours d.They should stay home with mom and dad and not go
to South Padre Island for Spring Break
Slide 437
D.O.S. #110 Which is a key concept of an ecosystem? a.Energy
can be recycled b.All food chains and food webs begin with
carnivores c.Feeding relationships can be shown in a food web,
which consists of interconnected food chains d.Arrows in food
chains and food web diagrams always point from the consumer to the
organism that is consumed
Slide 438
D.O.S. #111 What does the heavy bold line on the right hand
side of the periodic table indicate? a.Separates radioactive and
non- radioactive elements b.Separates metals and non-metal elements
c.Separates acids and bases d.What bold line?
Slide 439
D.O.S. #114 Which of these body systems is directly responsible
for maintaining the health and fighting off disease? a.Immune
system b.Muscular system c.Skeletal system d.Excretory system
Slide 440
D.O.S. #115 Hydrogen and nitrogen gas react in a sealed
container kept at a constant temperature as shown in the equation
below. The pressure in the container is less at the end of the
reaction than at the beginning. 3H 2 (g) + N 2 (g) 2NH 3 (g) What
is the most likely reason the pressure decreased? a.Fewer atoms at
the end of the reaction than the beginning b.Fewer molecules at the
end of the reaction than the beginning c.Mass of reactants is less
than mass of products d.Volume of reactants is less than the volume
of products
Slide 441
D.O.S. #116 Metabolism is defined as: a.Fat burners b.Poisoning
of the body from excess minerals and vitamins c.Chemical reactions
that take place in an organism d.Spread of disease within a plant
or animal community
Slide 442
D.O.S. #118 How much power is exerted by a 50 N boy running 100
meters in 5 seconds? (where P = W/t and W = F x d) a.2.5 watts
b.550 watts c.1000 watts d.25,000 watts
Slide 443
D.O.S. #120 A vacuum is: a.A mechanical device used to
redistribute dust b.A region with no matter in it c.A sealed room
d.None of the above
Slide 444
D.O.S. #121 An object will move when the net force on it is:
a.A factor of 2 greater than gravity b.Equal to zero c.Equal to
force of gravity d.Greater than zero
Slide 445
D.O.S. #124 A student starts with a heat source in each
solution. He removes heat probe and then measures changes in
temperature for various solutions at 5 minute intervals. What is
wrong with his data collection? a.There is no control b.Solutions
are too different c.Should have measured to nearest 0.1 degree
d.Nothing Solu- tion Init Temp Temp After 5 mins Temp After 10 mins
H2OH2O60 o C55 o C50 o C KI70 o C65 o C AgNO 3 80 o C72 o C65 o
C
Slide 446
D.O.S. #125 When water freezes, partial charges line up
(positive to negative), forming a crystalline structure. This
pattern causes molecules to spread slightly apart. What is the
result? a.Snow flakes form and travel slowly to earth b.Ice will be
less dense than water, so it floats c.Ice clings to the edges of
surfaces such as lakes, so it floats d.Ice and snow are good
solvents for antifreeze
Slide 447
D.O.S. #126 Total energy in a system is? a.Potential energy
plus kinetic energy b.Potential energy minus kinetic energy
c.Potential energy divided by kinetic energy d.Potential energy
multiplied by kinetic energy
Slide 448
D.O.S. #127 A molecule of DNA is shaped like: a.An oval b.A
pair of dumb bells c.A twisted ladder d.A set of stairs
Slide 449
D.O.S. #130 The efficiency of a real machine: a.Cannot exceed
100% b.Is calculated as a ratio of force output to force input c.Is
measured in watts d.Is the same as mechanical advantage
Slide 450
Last D.O.S. test of the school year (covers questions #118 -
#131)