Earth

12345678910111213141516
Across
  1. 1. When the air or water becomes dirty.
  2. 6. Land surrounded by water.
  3. 10. cap Frozen land at the top of the world.
  4. 11. A very high hill, often with snow on top.
  5. 12. To use something again instead of throwing it away.
  6. 13. A big natural hole filled with fresh water.
  7. 14. A long time with no rain.
  8. 16. Land with many trees and animals.
Down
  1. 2. A very big area of salt water.
  2. 3. A flat area between two mountains.
  3. 4. range A group of many mountains together.
  4. 5. spill When oil falls into the sea or onto land.
  5. 7. A hot, dry place with lots of sand and no trees.
  6. 8. A place with many trees, animals, and rain — usually hot.
  7. 9. A place with sand and sea for swimming.
  8. 11. When ice becomes water.
  9. 15. A long line of moving water that goes to the sea.