Energy and Earth Part 1

Front

What is convection?

Back

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

Front

Where do convection cycles happen?

Back

Convection cycles primarily occur in the mantle of the Earth.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the upper mantle and the crust.

Front

How does convection in the mantle affect the crust?

Back

The crust moves in the same direction as the convection cycle in the mantle.

Front

What type of heat transfer occurs when walking on warm sand?

Back

Conduction occurs when heat is transferred through direct contact, such as walking on warm sand.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as sunlight.

Front

What is the role of the mantle in Earth's structure?

Back

The mantle is a thick layer of semi-solid rock that lies between the crust and the core, playing a key role in convection processes.

Front

What happens to warm fluids in convection?

Back

Warm fluids become less dense and rise, while cooler fluids sink.

Front

What is the difference between conduction and convection?

Back

Conduction transfers heat through direct contact, while convection transfers heat through the movement of fluids.