Earth's Spheres and Water Cycle Review

Front

What is the independent variable in an experiment?

Back

The independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What sphere of Earth is represented by the layer of gases surrounding the planet?

Back

The atmosphere.

Front

How are the layers of the atmosphere classified?

Back

The layers of the atmosphere are classified by their temperature.

Front

What process leads to the formation of clouds?

Back

Condensation.

Front

What is the primary driving force behind the water cycle?

Back

The sun.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

Name the four main spheres of Earth. What are they?

Back

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

Front

What is the hydrosphere?

Back

The hydrosphere includes all the water on Earth, including oceans, rivers, lakes, and water vapor in the atmosphere.

Front

What role does the sun play in the water cycle?

Back

The sun provides the energy needed for evaporation, which is a key process in the water cycle.

Front

What is evaporation?

Back

Evaporation is the process by which water changes from a liquid to a gas or vapor.