Geology 2A: Convection and the Mantle

Front

What is the process called when energy moves from a warmer object to a cooler object?

Back

Heat transfer

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Front

What happens to soup as it is cooked in a pot?

Back

The soup rises, cools, becomes more dense, and sinks back down.

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Front

What type of heat transfer occurs when cooking food in a microwave?

Back

Radiation

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Front

What type of heat transfer occurs when you burn your foot on hot sand?

Back

Conduction

Front

How long have convection currents been happening inside the Earth?

Back

More than 4 billion years.

Front

Define convection in the context of geology.

Back

Convection is the movement of fluid caused by differences in temperature and density, leading to the transfer of heat.

Tags

NGSS.MS-ESS2-4

Front

What is the role of convection currents in the Earth's mantle?

Back

Convection currents help drive plate tectonics and influence geological processes.

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Front

Explain the difference between conduction, convection, and radiation.

Back

Conduction is heat transfer through direct contact, convection is heat transfer through fluid movement, and radiation is heat transfer through electromagnetic waves.

Front

What is density and how does it relate to convection?

Back

Density is the mass per unit volume of a substance; in convection, warmer, less dense fluids rise while cooler, denser fluids sink.

Tags

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Front

What is an example of convection in everyday life?

Back

Boiling water, where hot water rises and cooler water sinks.

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