Unit 4 Review Day

Front

What is pollution?

Back

Pollution is the presence of harmful substances in the environment, such as trash in the ocean.

Front

What is one way to conserve water?

Back

Fixing leaks is a way to conserve water.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by wind or water.

Front

How can you conserve water while brushing your teeth?

Back

You can turn off the water when you're brushing your teeth.

Front

What tool helps measure liquids accurately?

Back

A graduated cylinder helps measure liquids accurately.

Front

What is conservation?

Back

Conservation is the careful use of resources to prevent waste.

Front

What is recycling?

Back

Recycling is the process of converting waste materials into reusable materials.

Front

What is a natural disaster?

Back

A natural disaster is a catastrophic event caused by natural processes of the Earth, such as floods or forest fires.

Front

What is a forest fire?

Back

A forest fire is an uncontrolled fire that burns in forests or grasslands.

Front

What is a flood?

Back

A flood is an overflow of water that submerges land that is usually dry.