Planet Earth

When heat cannot escape from the atmosphere and the temperature on Earth goes up.

• global warming

• the greenhouse effect

The part of Earth’s atmosphere which protects Earth from the Sun.

• ice cap

• ozone layer

A large quantity of water that suddenly covers an area.

• drought

• flood

To use something again, or change something so that you can use it again.

• recycle

• save

Chemicals and other substances that have a harmful effect on the air, water or land.

• pollution

• nuclear disaster

The natural world around us.

• the rainforest

• the environment

A long period of time when there’s no rain.

• desert

• drought

To use something in an incorrect way.

• waste

• save

The accident when oil comes out of its container at sea or ocean.

• oil spill

• oil layer

When ice turns into water.

• met

• melt