Chapter 3 Lesson 1 Earth Systems

Front

Earth system that contains all living things

Back

Biosphere: The part of Earth where life exists, including land, water, and the atmosphere.

Front

The solid part of Earth

Back

Geosphere: The solid, rocky part of Earth, including the crust and the interior.

Front

21% of our atmosphere is

Back

Oxygen: A vital gas for life, making up about 21% of the Earth's atmosphere.

Front

Most of the water on Earth is found:

Back

Stored in the oceans: Approximately 97% of Earth's water is in the oceans.

Front

The thin layer of gases surrounding Earth

Back

Atmosphere: A mixture of gases that surrounds the Earth, essential for life.

Front

The layer of Earth that includes water

Back

Hydrosphere: All the water on Earth, including oceans, rivers, lakes, and groundwater.

Front

The process by which water vapor turns into liquid water

Back

Condensation: The process where water vapor cools and changes back into liquid.

Front

The movement of water through the atmosphere and Earth

Back

Water Cycle: The continuous movement of water through evaporation, condensation, and precipitation.

Front

The layer of Earth that supports life

Back

Biosphere: The global sum of all ecosystems, where living organisms interact with their environment.

Front

The main gas in the atmosphere that supports combustion

Back

Oxygen: Essential for burning and respiration in living organisms.