Across
- 3. To keep someone or something safe.
- 5. - When water covers dry land.
- 8. - To use something again and again.
- 9. - Dust in the air that makes it hard to see.
- 10. The world around us.
Down
- 1. The heating up of the world.
- 2. - Take something old and make something new.
- 4. When dirty harmful things get into our land sea and air.
- 6. - A long period with no rain.
- 7. - Use less of something.