Earth & Nature Crossword

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Across
  1. 3. An opening in Earth's crust that throws out hot lava and ash.
  2. 4. A long, natural stream of water that flows into the sea.
  3. 7. The low land sitting between two mountains or hills.
  4. 8. Living things that grow in the ground and need sunlight.
  5. 11. Moving ridges of water on the surface of the sea.
  6. 12. A thick, tropical forest with lots of rain and tall trees.
  7. 13. Close to something; the opposite of far.
  8. 15. The huge, empty area outside the Earth's atmosphere.
Down
  1. 1. A very large number, written as 1,000,000.
  2. 2. A large round object in space that circles a star, like Earth.
  3. 5. A huge body of salt water that covers most of the Earth.
  4. 6. A place where water flows over the edge of a cliff or rock.
  5. 9. The top layer of earth where plants grow; dirt.
  6. 10. A very tall, natural stone structure reaching high into the sky.
  7. 11. The clear liquid we drink to stay alive.
  8. 14. A solid, hard piece of Earth's surface.