Across
- 3. A piece of land that is completely surrounded by water.
- 4. A low area of land between hills or mountains, often with a river or stream running through it.
- 5. A large, dry, and often hot area of land that receives very little rain and has few plants.
- 11. A place where a river or stream flows over the edge of a cliff or rock and falls to the ground below.
- 12. A thick forest in tropical areas that receives a lot of rain. It has many different types of plants and animals.
- 13. The area of land right next to a sea or ocean.
- 15. When a large amount of water covers an area that is usually dry, often caused by very heavy rain or a river overflowing.
- 16. An area of land that is naturally higher than the land around it, but smaller than a mountain.
- 17. Dangerous, poisonous rubbish that comes from factories and can seriously harm living things and the environment.
- 18. A large area of land that is covered with many trees growing close together.
- 19. A very large, high hill, often with a rocky top.
Down
- 1. change A long-term change in the Earth's average weather patterns, often meaning warmer temperatures and more extreme weather.
- 2. A large, natural hole in the side of a cliff, hill, or under the ground.
- 5. A long period of time when there is very little or no rain, which causes the land to become very dry.
- 6. A large, natural stream of water that flows across the land and usually into a sea, lake, or another river.
- 7. A very large area of salt water. An ocean is larger than a sea.
- 8. A large area of water that is surrounded by land.
- 9. A very large mass of ice that moves slowly down a valley or over land.
- 10. When harmful or poisonous substances are put into the air or the sea, making them dirty and unsafe.
- 13. A high, steep rock face, often found on the coast where the land meets the sea.
- 14. A small, narrow river or body of flowing water.