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