Convection, Conduction and Radiation

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What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink, creating a circulation pattern.

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NGSS.MS-ESS2-6

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What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. It occurs best in solids, where particles are closely packed together.

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NGSS.MS-PS3-3

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What is radiation?

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Radiation is the transfer of heat in the form of electromagnetic waves. It can occur in a vacuum, meaning it does not require a medium to transfer heat.

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NGSS.HS-PS4-1

NGSS.HS-PS4-3

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Which material is the best conductor of heat?

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Steel is the best conductor of heat among common materials.

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NGSS.MS-PS1-4

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What are thermal conductors?

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Thermal conductors are materials that allow heat to transfer easily. Examples include metals like copper and aluminum.

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NGSS.MS-PS3-3

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What are thermal insulators?

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Thermal insulators are materials that do not allow heat to transfer easily. Examples include wood, plastic, and rubber.

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NGSS.MS-PS3-3

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In which type of material does conduction work best?

Back

Conduction works best in solids.

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In which type of material does radiation work best?

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Radiation works best in a vacuum (empty space).

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NGSS.MS-PS3-4

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How do gloves keep your hands warm in winter?

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Gloves keep your hands warm because they are insulators, preventing heat from escaping.

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NGSS.MS-PS3-3

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What is thermal equilibrium?

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Thermal equilibrium is the state in which two objects in contact with each other reach the same temperature and no heat flows between them.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4