The Sun's Energy

Front

What is the primary source of Earth's energy?

Back

The Sun.

Front

What is conduction?

Back

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

Front

Give an example of conduction.

Back

Walking on a hot sidewalk.

Front

How does heat move in conduction?

Back

From warm to cold areas.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases).

Front

What causes convection currents?

Back

Uneven heating of a liquid or gas.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves.

Front

How does the Sun's energy primarily reach the Earth?

Back

Through radiation.

Front

What is an example of radiation?

Back

Sunlight warming the Earth.

Front

What is the difference between conduction and convection?

Back

Conduction is heat transfer through direct contact, while convection is heat transfer through fluid movement.