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15
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If you left all of these objects in the same room overnight and then checked their temperatures the next day, what would you notice?
They would all be a similar temperature that would match the room temperature.
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seesaw
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rocket
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rocket
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thief
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25
15
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What happens to a substance when you heat it up?
It expands because the molecules move faster and create more space between them.
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15
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What happens to the molecules in a substance when they are cooled?
The molecules move slower and come closer together. The substance will contract.
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15
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Name the three ways that heat can transfer.
Conduction, convection, and radiation
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15
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What makes a substance an insulator?
It does not conduct (transfer) energy easily. It keeps hot matter hot or cool matter cool.
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10
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What type of heat transfer is this image showing?
Radiation
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seesaw
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magnet
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rocket
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thief
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10
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What type of heat transfer is this image showing?
Convection
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10
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Why is the food coloring fully mixed in the hot glass?
In the hot water the molecules are moving faster so the food coloring mixes more quickly.
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10
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Why is the food coloring not mixing very much in the cold water glass?
In the cold water the molecules are moving slower so the food coloring mixes slowly.
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5
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Heat always transfers from _____________ substances to ______________ substances.
warmer; cooler
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15
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What is density?
The amount of mass in a given space or volume
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seesaw
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seesaw
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gift
Win 25 points!
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thief
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banana
Go to last place!
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seesaw
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rocket
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thief
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10
×
What type of heat occurs where the candle flame touches the stick?
Conduction
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