Unit 4 Flashcard Review

Front

Solar energy is the source of most of Earth's heat on land, in water, and in the atmosphere.

Back

Solar Energy

Front

Only a small portion of the Sun’s energy reaches Earth through a process called radiation.

Back

Solar Energy

Front

About half of the solar energy that reaches Earth is absorbed by land or water.

Back

Solar Energy

Front

About half of the solar energy that reaches Earth is reflected back into space or absorbed by Earth’s atmosphere.

Back

Solar Energy

Front

The greenhouse effect is the process by which heat becomes trapped in the atmosphere by gases such as water vapor, carbon dioxide, methane, nitrous oxide, and ozone.

Back

Greenhouse Effect

Front

Heat from solar energy is transferred in three ways: radiation, conduction, and convection.

Back

Heat Transfer

Front

Radiation is the direct transfer of energy through space by electromagnetic waves.

Back

Radiation

Front

Conduction is the direct transfer of heat energy from one substance to another as the two substances are touching.

Back

Conduction

Front

Convection is the transfer of heat energy by the movement of a fluid (liquid or gas).

Back

Convection

Front

The Water Cycle is a continuous process by which water moves from bodies of water, land, and living organisms on Earth’s surface to Earth’s atmosphere and back to Earth’s surface.

Back

The Water Cycle