Conduction, Convection, Radiation

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What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. For example, when a metal spoon is placed in a hot pot, heat moves from the pot to the spoon.

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What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). For example, in a swimming pool, warm water rises to the surface while cooler water sinks.

Tags

NGSS.MS-ESS2-6

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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 empty space. An example is the heat from the sun reaching the Earth.

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NGSS.MS-PS4-2

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How does the sun warm the Earth?

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The sun warms the Earth through radiation, as heat travels through the vacuum of space.

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NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

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What happens to warm air?

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Warm air rises because it is less dense than cooler air.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

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What is an example of conduction in everyday life?

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An example of conduction is when you touch a hot stove and feel the heat transfer to your hand.

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NGSS.MS-PS3-3

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What is an example of convection in nature?

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An example of convection in nature is the formation of wind, where warm air rises and cooler air moves in to take its place.

Tags

NGSS.MS-ESS2-5

Front

What is an example of radiation in everyday life?

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An example of radiation is feeling the warmth of a campfire from a distance.

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What is the role of cold air in convection?

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Cold air sinks because it is denser than warm air, creating a cycle of movement.

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What is the difference between conduction and convection?

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Conduction requires direct contact for heat transfer, while convection involves the movement of fluids.