Nature - Land, Water, Air

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Across
  1. 3. it is grey or white and floats in the sky (Aeroplanes fly through them))
  2. 6. when sun appears in the sky in the morning
  3. 9. where river falls from a high place (over a cliff or a rock)
  4. 13. large hole in the side of a hill / mountain. People used to live here (The Flinstones)
  5. 14. a piece of land that's in the middle of some water (sea or lake)
  6. 15. wild green plant, horses, cows, sheep eat it
  7. 16. time when sun goes down and night begins
  8. 17. band of seven colours that appears in the sky with the sun while (or after)raining
  9. 19. large area of land with so many trees
Down
  1. 1. higher than the land, but not as high as a mountain
  2. 2. tropical forest where plants and trees grow very thickly
  3. 4. a loud noise after a flash of lightning
  4. 5. white flakes of frozen water that come from the sky in cold weather
  5. 7. when the Earth is shaking
  6. 8. It is built over a river or road so that people and vehicles can cross from one side to the other
  7. 10. large sandy area with very little water and just a few plants
  8. 11. salt water that covers the biggest part of the Earth
  9. 12. when small balls of ice fall like rain from the sky
  10. 18. still water, a small "lake" in a garden or park.