Earth's Spheres

Front

What is the main source of Earth's fresh water?

Back

Glaciers

Front

What percentage of the Earth's surface is covered by water?

Back

70%

Front

What does the prefix 'bio' mean?

Back

Life

Front

What is fresh water that lies beneath the Earth's surface called?

Back

Groundwater

Front

What do we call regions of the world with similar climate, plants, and animals?

Back

Biomes

Front

What are the four main spheres of the Earth?

Back

Lithosphere, Atmosphere, Hydrosphere, Biosphere

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, including the crust and upper mantle.

Front

What is the atmosphere?

Back

The layer of gases surrounding the Earth.

Front

What is the hydrosphere?

Back

All the water on Earth's surface, including oceans, lakes, rivers, and glaciers.

Front

What is the biosphere?

Back

The regions of the Earth where life exists, including land, water, and the atmosphere.