Transcript GPS: S3P1. Students will investigate how heat is produced and the

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HOT! HOT! HOT! All About HEAT!
GPS: S3P1. Students will investigate how heat is produced and the effects of
heating and cooling
a. Categorize ways to produce heat energy such as burning, rubbing (friction),
and mixing one thing with another.
b. Investigates how insulation affects heating and cooling.
c. Investigates the transfer of heat energy from the sun to various materials.
d. Use thermometers to measure the changes in temperatures of water
samples (hot, warm, cold) over time .
EQ: What is heat?
Write on a piece of paper what you know about how
heat is produced/made. Share what you write.
 Read page 196, paragraph 1. What is heat?
A. Heat is a form of energy that moves from one
object to another. Heat travels through solids, liquids,
and gases; from a warmer object to a cooler one.
Example (Activity 1): Pair up. See which partner has
colder hands. The partner with warm hands will make
his/her hands warmer by rubbing his/her hands
together briskly. Partners will hold hands.
How did the heat travel? From warmer hands to the cold
hands or from cold hands to your warm hands?
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How does heat travel or move?
Heat travels from a warmer object to a cooler one.
 Heat travels through solids, liquids, and gases.
 Describe how heat travels or transfers for each:
1. hot cocoa(liquid) to metal spoon (solid)
= The heat travels from liquid to solid.
2. warm air (gas) coming from the vent blowing toward
us (solid)
= The heat travels from gas to solid
3. steam or water vapor (gas) from boiling water (liquid)
= The heat travels from liquid to gas.
4. your body (solid) and the sweater (solid) you wear
= The heat travels from solid to solid.
5. putting ice (solid) to tap water (liquid)
= The heat travels from liquid to solid.
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Make a Book on Heat
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Write on your paper:
Book About Heat
By (your first and last name)
3rd Grade
Make a Book on Heat
(Write on the 1st page of your book using a sheet
of paper):
What is Heat?
Heat is a form of energy that moves from a warmer
body/object to a colder body/object.
Heat can travel through solids, liquids, and gases.
(Draw the examples on slide 3 or make your own
examples.)
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What are the sources of heat?
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Look at the pictures on pages194, 196,and 197.
What are the sources of heat?
The sources of heat are the sun, fire, electricity and
friction.
Look around the classroom…What sources of heat
do you see?
(On the 2nd page of your book, draw the sources of
heat. Write captions)
How is heat produced?
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1.
By Friction (rubbing of two things together).
Experiment/Activity 2:
There will be a bag of different objects. Combine
any 2 objects to rub together. Make a chart.
Object 1
Object 2
washer
washer
penny
washer
spoon
cloth
cloth
Popsicle stick
Did their surfaces
get hot in 1
minute?
How is heat produced?
A. Heat is produced/made by Friction.
2. Listen to your teacher as she starts the timer. As
soon as you hear the timer, start rubbing the first 2
objects (on your list) as fast as you can. Stop when
you hear your teacher saying “stop”. Touch the
surfaces of both objects. Record your
data/information.
3. Do the same with the next sets of objects on your
list.
How is heat produced?
A. Heat is produced/made by Friction.
4. Which object(s) felt the hottest? Why do you think
so?
Page 3 Complete the first part of the chart.
Page 5: Draw several ways how to produce heat by
friction. Use your Activity 2 chart or use your own
examples. Write this heading on top of the page:
“Ways to Produce Heat by Friction”
Look at the model page made by your teacher.
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How is heat produced?
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B. Heat is produced by burning.
Read page 197, paragraph 1
What are the examples of heat production by
burning?
a. Cars burn fossil fuels to produce heat.
b. Your body burns food to produce energy.
c. We burn logs/wood, paper, coals for: campfire,
cooking, fuels.
How is heat produced?
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B. Heat is produced by burning.
Page 6 of your booklet: Draw examples of
producing heat by burning. Write this heading on
top of the page “2. Heat is Produced by Burning”
Look at the sample work done by your teacher.
How is heat produced?
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C. Heat is produced by mixing or combining 2 or
more things together.
Activity 3: Heat Packs
Lets us read the label of the heat pack.
What does each pack contain? _______
What is the correct and safe way to use it? What
happens if we shake the heat pack? Why?
Now let’s shake the heat pack and see what
happens in 5-10 minutes. Ready?
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Write on p. 3B
How is heat produced?
3. Mixing
How is heat produced?
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C. Heat is produced by mixing or combining 2 or
more things together. Illustrate or draw what you
just did with the heat packs or hand warmers.
Let’s watch a video from brainpopjr.com!
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Complete page 4.
Extra! Extra! What
is temperature and how
do we measure it?
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All objects are made up of very tiny particles or
molecules. They always move. The energy that makes
them move is called thermal energy. Hot objects have a
lot of thermal energy (the molecules move more).
Cold objects have less thermal energy (the molecules
move less). Let’s play the role of molecules in an
object!
Temperature is a measure of how hot or cold
something is. It describes how much thermal energy an
object has.
You and your partner will be given 2 thermometers.
Please do not touch them yet!
What is temperature and how do we
measure it?
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A thermometer is a tool used to measure temperature.
It measures how much thermal energy or heat a body
or object has.
Let’s learn how to use a thermometer.
Look at your thermometer. What are the letters on top
of each number line? They are the units we use to
measure temperature.
˚F stands for Fahrenheit. This is the unit we use in the
U.S.A.
˚C means Celsius or Centigrade. This is the unit most
countries in the world use because it is easier to read.
How do we use a thermometer?
Answer pages 8 - 13
 Activity: Let’s dip your thermometer in
different water temperatures.
 Let’s talk about different temperatures
that you should know about (p. 7).
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How does the heat transfer from the
sun to various (different) materials?
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The heat from the sun travels through space in
waves.
All things on Earth are changed in some way by the
sun.
Let’s read the readers’ theater script “How does the
Sun Transfer Heat to Different Objects?” pages 14
and 15.
Answer the questions on page 16.
How do we trap heat (or cold)?
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Why do we need to trap heat?
1. We need to trap heat to keep our food or drinks
warm.
2. We need to trap heat to avoid getting burned.
3. We need to trap heat to make us feel
comfortable.
We will learn about materials that trap heat well
which we call “insulators”.
Most of our houses are insulated?
Why?
Why do we need materials that get
hot easily ?
1. To cook our food faster.
2. To transfer or conduct electricity.
3. To cool our drinks easily.
We will learn about materials that get hot easily, yet
lose heat easily. They are called
“conductors”.
Conductors Versus Insulators
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Conductors are materials that heat move through
easily. They heat up quickly, yet lose their heat
quickly. Examples are many kinds of metal and
glass.
Insulators are materials that heat does not move
through easily. They don’t heat up quickly, and they
don’t lose their heat quickly. They are “heat traps”.
Examples are wool, wood, cotton, fur, rubber, and
Styrofoam.
How do we trap heat or thermal
energy?
I will show you objects and sort them out:
Conductor or Insulator?
 Draw 3 examples of conductors and 3
examples of insulators
 How do we trap heat or cold? What
materials do we use to do so?
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Let’s finish your book! Answer pages 1721.
 Answer Study Guide.
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