4.11BC Unit Review

Front

What is a rock?

Back

A natural solid material made of one or more minerals.

Front

What does it mean to reduce?

Back

To use less of something.

Front

What activity causes AIR pollution?

Back

Cars that use gasoline to run.

Front

What is sediment?

Back

Small pieces of rock.

Front

What is recycling?

Back

To create new materials out of old materials.

Front

What is pollution?

Back

The introduction of harmful materials into the environment.

Front

What are non-renewable energy sources?

Back

Energy sources that are made from remains of decayed organisms.

Front

What does it mean to use materials wisely?

Back

To use materials and natural resources in a careful and efficient way.

Front

What is an example of a renewable energy source?

Back

Solar panels collecting sunlight.

Front

What is the importance of recycling?

Back

It helps to reduce waste and conserve natural resources.