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Across
  1. 2. A fast moving wind high in the atmosphere
  2. 5. Small pieces of rock sand or soil moved by wind or water
  3. 9. When a warm air mass moves over a cold air mass
  4. 14. When liquid water changes into water vapor because of heat
  5. 17. The layer of gases that surrounds Earth
  6. 18. Melted rock that flows out of a volcano
  7. 19. The process when plants release water vapor into the air
  8. 20. Large pieces of Earth’s crust that move slowly
  9. 22. The process where sediment is dropped in a new place
  10. 23. A crack in Earth’s crust where movement can cause earthquakes
  11. 25. When water vapor cools and turns back into liquid water
Down
  1. 1. A resource that can be replaced naturally over time
  2. 3. Any form of water that falls from clouds such as rain snow or hail
  3. 4. The breaking down of rocks into smaller pieces
  4. 6. The process that traps heat in Earth’s atmosphere
  5. 7. The gradual rise in Earth’s average temperature
  6. 8. The movement of heat through liquids or gases
  7. 10. A large body of air with similar temperature and moisture
  8. 11. Melted rock found beneath Earth’s surface
  9. 12. When a cold air mass moves under a warm air mass
  10. 13. A resource that cannot be replaced quickly
  11. 15. The amount of water vapor in the air
  12. 16. An area of land where all water drains into the same river or lake
  13. 21. A tool used to measure air pressure
  14. 24. Water that flows over the ground into rivers lakes or oceans