Heat Transfer: Conduction, Convection, Radiation

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What is conduction?

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Conduction is the transfer of heat through direct contact of molecules or particles with each other.

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NGSS.MS-PS3-3

NGSS.MS-PS3-4

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What is convection?

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Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

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What is radiation?

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Radiation is the transfer of heat in the form of electromagnetic waves, which can travel through space.

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How does heat transfer occur when you hold ice in your hand?

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Heat transfer occurs through conduction, as heat moves from your hand to the ice.

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NGSS.MS-PS1-4

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What happens to a spoon when it is stirred in hot coffee?

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The spoon gets hot due to conduction, as heat is transferred from the coffee to the spoon.

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What is an example of convection in everyday life?

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An example of convection is the way warm air rises and cool air sinks, creating a circulation pattern in a room.

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NGSS.MS-ESS2-6

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What is an example of radiation?

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An example of radiation is feeling the warmth of the sun on your skin, even when you are not in direct contact with it.

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NGSS.MS-PS4-2

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What type of heat transfer causes weather systems on Earth?

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Convection causes weather systems on Earth due to the movement of warm and cool air.

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NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

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What is the role of insulation in heat transfer?

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Insulation reduces heat transfer by conduction, convection, and radiation, keeping heat in or out of a space.

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NGSS.MS-PS3-3

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What is the difference between conduction and convection?

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Conduction occurs through direct contact, while convection involves the movement of fluids.