Front

Any material that flows is a __.

Back

Fluid

Front

Which form of thermal energy transfer does density of the substances play a key role?

Back

Convection

Front

Which is the result of convection?

Back

Rain forests near the equator.

Front

Which type of energy transfer does not require matter?

Back

Radiation

Front

The transfer of energy through matter by the direct contact of particles is called __.

Back

Conduction

Front

What is conduction?

Back

The transfer of thermal energy through direct contact of particles.

Front

What is convection?

Back

The transfer of thermal energy through the movement of fluids (liquids and gases) due to density differences.

Front

What is radiation?

Back

The transfer of energy through electromagnetic waves, which can occur in a vacuum.

Front

Give an example of conduction.

Back

A metal spoon getting hot in a pot of boiling water.

Front

Give an example of convection.

Back

Warm air rising and cool air sinking in a room.