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Measurement
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How do Scientists Investigate the Natural World?
What are the Processes of Science?
Lesson 1 Essential Question
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Page 7
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Inferring is not guessing it is based on what you know from observations.
Page 8 Inferring
Damselfish maintain
and defend “algal
lawns”!
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Making a statement of what will happen next based on past experience or evidence.
Page 9 Predicting
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Page 10 Apply It
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Page 11 Scientific Investigation
Write a question for each image that could be answered by conducting a scientific
investigation.
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What Do I Do For HW?
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What Do I Do For HW? Page 45
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Every homework will be patrolled if its not complete you will receive a
citation!1 citation = B2 citations = C & CALL TO THE JUDGES!3 citations = D & CALL TO THE JUDGES!4 citations = F & CALL TO THE JUDGES!
Homework Patrol! Watch out!
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Complete Lesson 1 Assess Your Understanding pg 11
Review & Assessment #1-3 Page 45Lab Fee $10Vocabulary Study Sheet 9/5
Home Learning
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How do Scientists Investigate the Natural World?
Why is a standard measurement system important?
What are some SI units?
Lesson 2 Essential Question
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Page 12
-19°C = -2.2° F
725 kg = 1598 lbs
over 65 feet!
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Growers compete every year for the heaviest pumpkin in the United States. The 2012 winner weighed more than a ton!
Ron brought his 2009 pound pumpkin to the Topsfield Fair in Topsfield, MA on September 28, 2012.
2009 lbs.
Page 12 Fun Facts
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The metric system is a system of measurement based on the number 10.
Modern scientists use a version of the metric system called the International System of Units, or SI.
Using SI allows scientists to repeat experiments, compare data and communicate with each other about their results.
The International System of Units (SI).
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Page 13 Common SI PrefixesThe metric system is used to measure things like length, mass, and volume. How would you complete the chart of SI prefixes?
Kilo (k)
Hecto (h)
0.1
0.01
millimeter
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Metric rulers are fairly easy to read. They deal with centimeters and millimeters.
A meter (m) is the basic SI unit used for measuring length.
Metric Rulers
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The larger lines with numbers are centimeters, and the smallest lines are millimeters
Let’s take a look at a Metric Ruler.
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Let’s practice measuring in cm.
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Let’s practice measuring length in cm with decimals.
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In SI, the basic unit for measuring mass is the kilogram (kg).
Conversions for Mass
Hey! Don’t make fun of my
mass or my weight!
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Triple Beam Balance (g)
Make it balance & add the three!
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MASS: is constantAn object has mass if...
it takes up space.
WEIGHT: is a force that depends on gravityMost of the devices we use to measure mass
are actually measuring the force that gravity has on the mass.
MASS vs. WEIGHT
Without gravity
these can’t work.
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Conversions for Volume This table shows how to convert between the volume of solids and the volume of liquids. Meniscu
s!Meniscu
s!
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Let’s practice reading volume in ml
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You can determine the volume of the model by measuring how much water it displaces. Initial minus final = volume of object. (cm3)
How can you determine the volume of odd shaped objects?
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e 17
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Which is heavier kids? One KILOGRAM of Feathers
or One KILOGRAM of Lead
Neither!They are the same , you
are measuring
weight which
depends on gravity.
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Step 1: obtain the weight of object. Grams Step 2: obtain the volume of the object. Measure volume as milliliters. Step 3:
Calculate density by dividing weight (mass) by the volume.
Finding density takes only 3 easy steps!
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How cold can we go?Temperature is the average energy of the
movement of atoms. The slower they move, the cooler the
temperature.So if movement defines temperature, when
movement stops, that’s the coldest temperature can get!
That temperature is called absolute zero because that is absolutely as cold as you can go.
Temperature
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The Kelvin scale, named after Lord Kelvin who proposed it, sets zero at absolute zero, the temperature where all atoms stop moving. No negatives.
(Important to note the electrons in the atoms never stop!)
Absolute Zero:
The Kelvin scale is the basis for the SI
temperature units.Stand at absolute
zero men!
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Temperature Scales•Which thermometer is Kelvin?
•Which is Celsius?
•What is the freezing point of water on the Kelvin thermometer?
•What is the boiling point of water on the Kelvin thermometer?
Page 20 Temperature
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Let’s practice reading temperature in Celsius.
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Page 21 TimeYou’re fast partner!
The second is the SI unit to measure time.
60 seconds in a minute.60 minutes in an hour.
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What Do I Do For HW?
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What Do I Do For HW?
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What Do I Do For HW?
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Let’s Play!Oooo
measure the TOYS!!
Oooo Treat the toys
with RESPECT!
!!
Oooo Calculate
the volume and density
of the TOYS!!
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Complete Lesson 2 Assess Your Understanding pg 13& 21
Review & Assessment #4-7 Page 45Lab Fee $5Vocabulary Study Sheet 9/6Back to School Night 9/19
Home Learning
