Heat Conducting Materials 3 rd grade SPI 0307.10.2 Classify materials according to their ability to...
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![Page 1: Heat Conducting Materials 3 rd grade SPI 0307.10.2 Classify materials according to their ability to conduct heat.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649d9f5503460f94a8ae18/html5/thumbnails/1.jpg)
Heat Conducting Materials3rd grade
SPI 0307.10.2 Classify materials according to their ability to
conduct heat.
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That’s hot!• Many things give off heat. • Heat is sometimes very hot!• All heat is energy.
Sun fire electricity
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Campfire!• Pretend you are at a
campfire. You are roasting a hot dog on a metal wire coat hanger.
• Slowly the end of the hanger warms up, as it takes in the heat from the fire.
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Ouch!
• If you leave the hanger in the fire for a long time, the whole hanger will become to hot to touch!
•Why does this happen?
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Here’s the reason….
• This happens even though the handle end was never placed into the flames.
• Heat moves from the flames to the metal handle.
• From there it moves to all the molecules in the hanger by conduction until it reached your fingers.
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Heat on the move!• Heat can move from one object to
another, or from one molecule to another through the process of conduction.
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What is a molecule?A molecule is like a tiny building block that makes up everything around us.
We can’t see them with our eyes.
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Hot All Over!• As one molecule is heated it begins to
move quickly.
• When it does it passes some of its heat energy to other molecules around it.
• When this happens, all the molecules of an object move heat from one to another, until they are all hot.
![Page 9: Heat Conducting Materials 3 rd grade SPI 0307.10.2 Classify materials according to their ability to conduct heat.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649d9f5503460f94a8ae18/html5/thumbnails/9.jpg)
What things get hot fast?• Some materials (objects) get warmer faster
than others.
• Metal is a good conductor because it takes heat in quickly.
• Copper becomes hot quickly, so it is a conductor.
Copper pots
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You’re no good!• Other things like wood, plastics,
and cotton are not good conductors of heat energy.
• These are called insulators.
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Color conductors!• Some colors are good conductors of
heat!
• Black, navy blue, and other dark colors take in heat quickly.
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It’s getting hot in here!
• Have you ever noticed how quickly you get hot when you are wearing a black t-shirt on a summer day?
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Cool colors?!• Wearing white or light colored
clothing outside helps you stay cool on hot days!
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HONK! HONK! BEEP! BEEP!
Would a white car or black car on a summer day be hotter?
Which do you think would be hotter to touch?
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Did you choose…
black?
If you did, you are right!
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Which would you choose?
On a hot day, which side of the shirt would keep you cool?
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If you chose…..
whiteyou are right!
![Page 18: Heat Conducting Materials 3 rd grade SPI 0307.10.2 Classify materials according to their ability to conduct heat.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649d9f5503460f94a8ae18/html5/thumbnails/18.jpg)
Remember….Heat moves through
objects.This is called conduction!
![Page 19: Heat Conducting Materials 3 rd grade SPI 0307.10.2 Classify materials according to their ability to conduct heat.](https://reader035.fdocuments.net/reader035/viewer/2022062518/56649d9f5503460f94a8ae18/html5/thumbnails/19.jpg)
ConductorsSome things hold heat in faster
than others.
Metal and copper are conductors.
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InsulatorsPlastic, wood, and cotton are insulators!
They do not let heat in quickly!
These things are insulators.
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Stay cool dude!• The color black takes in heat faster
than cooler colors like white!
• On a hot day, wear a white shirt and chill out!