2nd Review

Front

How do plants contribute to the formation of soil?

Back

Plants die, decompose and become part of the soil.

Front

What planets are Mercury, Venus, Earth, & Mars considered?

Back

Inner planets.

Front

What happens when an area of land or rock slides down from a mountain or cliff?

Back

It is called a landslide.

Front

Which of these resources does not produce energy: Coal, Oil, Natural Gas, or Plastic?

Back

Plastic does not produce energy.

Front

If you separate your garbage in different trash cans, what are you doing?

Back

You are recycling.

Front

What is soil made of?

Back

Soil is made of tiny pieces of rock, minerals, and decomposed plants and animals.

Front

What do we call the process of using less of something?

Back

Reducing.

Front

What is the term for the natural process of breaking down rocks?

Back

Weathering.

Front

What do we call the layer of gases surrounding the Earth?

Back

The atmosphere.

Front

What is the main source of energy for the Earth?

Back

The Sun.