Spheres of the Earth

Front

What are the four spheres of the Earth?

Back

The four spheres of the Earth are the biosphere, geosphere, hydrosphere, and atmosphere.

Front

What is the biosphere?

Back

The biosphere is the sphere that includes all living things on Earth.

Front

What is the geosphere?

Back

The geosphere is the solid part of the Earth, including rocks, soil, and landforms.

Front

What is the hydrosphere?

Back

The hydrosphere includes all the water on Earth, including oceans, rivers, lakes, and glaciers.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding the Earth.

Front

How do the biosphere and geosphere interact?

Back

The biosphere interacts with the geosphere when living organisms, like plants and animals, depend on soil and land for survival.

Front

How do the geosphere and atmosphere interact?

Back

The geosphere and atmosphere interact when volcanic eruptions release gases and ash into the air.

Front

Where is most of Earth's water found?

Back

Most of Earth's water is found in the ocean.

Front

What is an example of the biosphere and hydrosphere interacting?

Back

Polar bears living and hunting on ice is an example of the biosphere and hydrosphere interacting.

Front

What happens when dead things decompose?

Back

When dead things decompose, nutrients, including nitrogen, are returned to the soil, benefiting the geosphere.