Work of Water

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Across
  1. 3. large areas of flat land with few trees
  2. 5. a high area of land with a side that is almost straight up-and-down
  3. 7. a long, thin area of water that flows
  4. 8. a large area of salt water that covers the Earth
  5. 9. when lots of rocks and soil roll down from a cliff or mountain
  6. 12. a high area of land with steep sides
  7. 15. a person who uses science to come up with solutions to problems
  8. 16. a pretend version of something that scientists use when the real thing is too big
  9. 18. a test used to discover new information about a question
Down
  1. 1. a big fire that spreads quickly
  2. 2. when tiny bits of rock are moved from one place to another
  3. 4. a high area of land that is flat on top
  4. 6. a natural structure of Earth's surface, like a mountain or canyon
  5. 10. a small river
  6. 11. a long, thin area of water that flows
  7. 13. to pay close attention to something
  8. 14. a deep hole in the ground formed over a long time by moving water
  9. 17. a high area of land that isn't as tall as a mountain