Earth

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Across
  1. 2. A large piece of land surrounded by water
  2. 5. Frozen water found at the poles
  3. 7. The blue part of Earth made of water
  4. 8. The place where land meets water
  5. 9. The top layer where we live
  6. 13. Land covered with trees
  7. 14. The line where Earth and sky appear to meet
  8. 16. The layer of air around Earth
  9. 19. The force that pulls us towards Earth
  10. 20. A shaking of the Earth’s surface
Down
  1. 1. The outer solid part of Earth
  2. 3. the study of Earth
  3. 4. The hot center of the Earth
  4. 6. A large body of salt water
  5. 10. The spinning of the Earth is called
  6. 11. A natural satellite of Earth
  7. 12. Moving air is called
  8. 15. A mountain that erupts lava
  9. 17. Molten rock inside Earth
  10. 18. The planet we live on