Earth's Systems

Front

What are the four main spheres of Earth?

Back

The four main spheres of Earth are the lithosphere (land), hydrosphere (water), atmosphere (air), and biosphere (living things).

Front

What is the hydrosphere?

Back

The hydrosphere is the sphere that contains all of Earth's water, including oceans, rivers, lakes, and groundwater.

Front

What does the term 'biosphere' refer to?

Back

The biosphere refers to the sphere that includes all living organisms on Earth, including humans.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding Earth, essential for weather and climate.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of Earth, consisting of the crust and upper mantle.

Front

What does the prefix 'hydro' mean?

Back

The prefix 'hydro' means water.

Front

How do volcanoes and earthquakes affect Earth's surface?

Back

Volcanoes and earthquakes can cause rapid changes to Earth's surface through eruptions and tectonic movements.

Front

What is precipitation?

Back

Precipitation is any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.

Front

What is the water cycle?

Back

The water cycle is the continuous process by which water evaporates, condenses, and precipitates back to Earth.

Front

What role do humans play in the biosphere?

Back

Humans are part of the biosphere and interact with other living organisms and the environment.