Physical Science Bell ringers

Spring Semester

PHYSICAL SCIENCE BELL RINGERS

MAY 18, 2012

No bell ringers this week

Return textbook to Mrs. Green

•Olympic PowerPoint Presentations

MAY 17, 2012


Return textbook to Mrs. Green

•Olympic PowerPoint Presentations

MAY 16, 2012


Bring Physical Science Textbook tomorrow

•1st & 5th – Olympic PowerPoint Presentations

•4th – get out study guide and spend a few moments to study before the final

MAY 15, 2012


•1st & 5th – get out study guide and spend a few moments to study before the final

•4th – Get out study guide, Finals Review

MAY 14, 2012


•Turn in Final Draft of Olympics Paper

•Get out Study Guide

ANNOUNCEMENTS/TO DO LIST• FOR MONDAY: Make sure your PowerPoint is

• emailed to Mrs. Green,

• saved on a thumb drive,

• or saved to Commons by the time you walk into class on MONDAY

• Print out your report before you come to class

• If it is not printed out you will be docked 10 points

BELL RINGER MAY 11, 2012

Finals Review

•Name of each of the following elements, and classify it as a metal, a nonmetal, or a metalloid:

Na, Ca, Ti, As, Ar.•Turn in 4 bell ringers from this week


No Bell Ringer, Mrs. Green absent


Finals Review

•Name the following ionic compounds: CaBr2, MgS.


Finals Review

•Explain the steps involved in converting the chemical potential energy in fossil fuels to electrical energy.


Add to your April 30th bell ringer

•Tell me three interesting facts about your Olympic event.

BELL RINGER MAY 1-4, 2012

• No Bell Ringers, working in Library on Summer Olympics project.

BELL RINGER APRIL 30, 2012

• What event takes place in London this summer?


• Describe how radiotracers can be used to diagnose medical problems.

• Turn in 4 bell ringers from this week


•What is your opinion about “green gasoline”?

BELL RINGER APRIL 25, 2012• No Bell Ringer, Mrs. Green absent


• Name two devices used to detect radiation.


• What is radioactivity?


• Why is there an Earth’s Day?

• Turn in 5 bell ringers from his week

• 5th – 4 bell ringers


• Describe alpha, beta and gamma particles.


• What is radioactivity?

1ST & 4TH - BELL RINGER APRIL 17, 2012

• Describe an atom’s nucleus.• What is found inside the nucleus?

• 5th – No Bell Ringer, Mrs. Green absent


• Describe an atom’s nucleus.• What is found inside the nucleus?

1ST & 4TH 4/16/12 – BELL RINGER

• What is the relationship between energy and breaking or forming chemical bonds?

• Turn in bellringers from last week if absent Friday.

• Show me two sections of 23.4 notes when finished.


• What is activation energy?

• Turn in 5 bellringers from this week when finished.

BELL RINGER APRIL 12, 2012• What is the difference between an exergonic

and endergonic reaction?

• Exothermic and endothermic?


• What is chemical kinetics?

1ST & 4TH 4/11/12 – BELL RINGER

• What does a catalytic converter do?


• Balance and identify the type of reaction

• HCl + CaCO3 CaCl2 + H2O + CO2

1ST & 4TH - 4/10/12 - BELLRINGER

• Explain what is happening at a molecular level when energy is added or removed.


• Tell me three things you did over Spring Break

• Turn in 5 bell ringers from before Spring Break if you were absent 3/30

3/30/12

• What is the activity series?

• Turn in 4 bellringers when finished.

• Come show me your 23.1-.3 notes when bell ringer is turned in!

3/29/12 – BELL RINGER

• What is a precipitate?

3/28/12– BELL RINGER

• How do chemists use chemical equations to show chemical changes?

Bell Ringer 3/27/12Bell Ringer 3/27/12

• What do you do differently when What do you do differently when naming ionic compounds vs. naming ionic compounds vs. covalent compounds?covalent compounds?

• How can you tell if a compound is How can you tell if a compound is ionic or covalent?ionic or covalent?


• Give an example of the following reaction types:• Synthesis reaction

• Decomposition reaction

• Single displacement reaction

• Double displacement reaction


• Why can’t you remove atoms from molecules/compounds to balance equations? (BESIDES the law of conservation)

• Turn in 5 bell ringers from this week when finished.

3/22/12 – BELL RINGERS• What is happening

in this chemical reaction?

3/21/12 – BELL RINGER• Balance this equation:

• H3PO4 + HCl → PCl5 + H2O

3/20/12 – BELL RINGER• Write an equation from the following:

3 units of Barium fluoride reacts

with 6 units of Potassium hydroxide

to produce/yield 3 units of Barium hydroxide and 6 units of Potassium fluoride

3/19/12 – BELL RINGER• Label the following as solid, gas, liquid, and aqueous

at room temperature:

• Oxygen

• A solution

• Mercury

• Iron

4TH & 5TH - 3/15/12 – BELL RINGER

• Water freezing or boiling is not chemical reaction. Why?


1ST 3/15/12 – BELL RINGER

• What kind of reactions can you think of? (Think outside the box!)


• What kind of reactions can you think of? (Think outside the box!)

1ST 3/14/12 – BELL RINGER• How would you write the name of Cu2O?

• How would you write the formula for lead (IV) oxide?

• HINT – These are transition metals!


• How would you write the name of Cu2O?

• How would you write the formula for lead (IV) oxide?

• HINT – These are transition metals!

1ST 3/13/12 – BELL RINGER• What confuses you most in this chapter?

• Show Mrs. Green your notes from this chapter (22) when finished.

5TH - 3/12/12 – BELL RINGER• What is the correct molecular formula for the

compound, dinitrogen pentoxide?

• What is the correct name for the compound, S2F10?

4TH 3/12/12 – BELL RINGER• What confuses you most in this chapter?

• Show Mrs. Green your notes from this chapter (22) when finished.

1ST 3/12/12 – BELL RINGER• When a girl asked the nitrogen monoxide out on a

date, what did it say?

• A hydrogen atom was talking to potassium. Potassium said “I lost an electron.” The hydrogen said “Are you sure?” How did the potassium reply?

1ST & 4TH 3/09/12 – BELL RINGER• What is the correct molecular formula for the

compound, dinitrogen pentoxide?

• What is the correct name for the compound, S2F10?



• Write the formula for the following:

• Iron (III) phosphide

• Ammonium chloride

• 5th = Turn in 3 bell ringers from this week

3/7/12 – BELL RINGER• There are many sites stating that we should ban

dihydrogen monoxide, saying…

• Prolonged exposure to it as a solid causes severe tissue damage.

• When gaseous, can cause severe burns.

• Leads to corrosion and oxidation of many metals.

• Why are these websites funny?


• No bell ringer, ACT test

3/5/12 – BELL RINGER• What would the formula for a compound

containing lithium and nitrogen be?

• What would the formula for a compound containing calcium and phosphorus be?

3/2/12 BELL RINGER• How might you write

the chemical formula for this? What is it?

• Turn in 5 bell ringers when finished

3/1/12 – BELL RINGER• What do ionic bonds and covalent bonds have

in common? How are they different?


• Draw and fill in a Venn diagram to describe ionic and covalent bonds.

Travis, Sarah, Josh, Crystal, CollinYou need to make plans to come in before or after school to make up your Ch. 19 test

2/28/12 – BELL RINGER• Sodium (Na) and Chlorine (Cl) combine to

make a common ionic bond, which becomes table salt (NaCl). How would you draw a Lewis Dot Diagram of this bond?

Travis, Bailey, Sarah, Josh, Crystal, CollinYou need to make plans to come in before or after school to make up your Ch. 19 test

2/27/12 – BELL RINGER• What is the joke in this comic?

FEBRUARY 24, 2012

• What do the chemical formulas CO and CO2 stand for? What elements are in them, and how many atoms of each?


FEBRUARY 23, 2012

• Explain and draw what you think a water molecule looks like.

FEBRUARY 22, 2012

• No Bell Ringer, Mrs. Green absent

FEBRUARY 21, 2012

• Describe the electron cloud model of the atom.

FEBRUARY 20, 2012

• No School

FEBRUARY 17, 2012

• Give the period and group for each of the following elements: F, O, Al.


FEBRUARY 16, 2012

• What is the name of each of the following elements? Br, Ge, Au, Rb

• Classify each as a metal, a nonmetal, or a metalloid:

FEBRUARY 15, 2012

• Explain why some elements have one capital letter and others have a capital letter and one or two lowercase letters.

FEBRUARY 14, 2012

• Snow Day

FEBRUARY 13, 2012

• How are isotopes the same and how are they different?

FEBRUARY 10, 2012

• Describe how the periodic table is arranged.


FEBRUARY 9, 2012

• Compute the mass number of a phosphorous atom.• Find the # of protons and # neutrons

FEBRUARY 8, 2012

• Describe the electron cloud model of the atom.

FEBRUARY 7, 2012

• Identify the names and symbols of three common elements.

FEBRUARY 6, 2012

• What are protons and electrons?

FEBRUARY 3, 2012

• Iron and oxygen combine to form rust. Compare the mass of iron and oxygen before the reaction with the mass of the rust after the reaction.


FEBRUARY 2, 2012

• Determine how the law of conservation of mass applies to chemical changes.

FEBRUARY 1, 2012

• No bell ringers, Mrs. Green absent

JANUARY 31, 2012

• What is the difference between a homogenous and heterogeneous mixture?

JANUARY 30, 2012

• Name three examples of physical changes.

JANUARY 27, 2012

• Name three examples of chemical change.


JANUARY 26, 2012

• Name three phase changes.

JANUARY 25, 2012

• What is the difference between a homogenous and a heterogeneous mixture?

JANUARY 24, 2012

• Provide one reason why the balls bounced differently yesterday.

JANUARY 23, 2012

• What is the difference between a colloid and a solution?

JANUARY 20, 2012

• Name the three states of matter.


JANUARY 19, 2012

• Explain how a nuclear reactor converts nuclear energy to thermal energy.

JANUARY 18, 2012

• What is fractional distillation used for?

JANUARY 17, 2012

• Describe how electricity is generated using geothermal energy.

JANUARY 13, 2012

• Why isn’t wind energy used more in the United States?

Turn in 5 bell ringers from this weekwhich should include Wednesday’s missed conceptions

JANUARY 12, 2012

• Name three alternative energy sources.

JANUARY 11, 2012

• How are the products of nuclear fission different from the products of nuclear fusion?

JANUARY 10, 2012

•Why is nuclear fusion not a reliable energy source?

JANUARY 9, 2012• One reason alternative energy sources are

needed is because ____.• a. the energy needs of the world are

decreasing• b. there is no limit to the supply of fossil

fuels• c. the population of the world is decreasing• d. the supply of fossil fuel is diminishing.

Turn in Homework Extension Pass

JANUARY 6, 2012

Explain how electricity is produced.

Turn in 3 bell ringers from this week

Turn in Homework Extension Pass

JANUARY 5, 2012

What are fossil fuels? Give an example.

JANUARY 4, 2012• Get out a piece of paper, write today’s date and answer the

question below. Hold on to your paper as we will turn them in on Friday once we have a week of bell ringers

Name three things you remember learning about 1st semester.

Documents

Physical Science Bell ringers