Earthday

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Across
  1. 5. Protects lands from strong tsunamis and typhoons.
  2. 6. Eats, sleeps, communicates, works, and reproduce.
  3. 7. First people to invent technology
  4. 11. Covers up most of Earth's surface.
  5. 12. Floating cotton candy that cries from time to time.
  6. 13. 4.543 billion years
  7. 15. Gas produced by respiration.
  8. 18. Earth's heat source
  9. 20. Creator of Earth
  10. 21. The basic unit of a chemical element.
  11. 22. The study of Earth.
Down
  1. 1. April 22
  2. 2. Lives in bodies of water.
  3. 3. The ability to get and use energy, reproduce, grow, and respond to change.
  4. 4. harmful and poisonous to the environment
  5. 8. coolest marine biology teacher.
  6. 9. Going green
  7. 10. Force that attracts a body toward the center of the Earth.
  8. 14. Study of marine life.
  9. 16. What we breathe to survive.
  10. 17. Imaginary horizontal line across the center of the Earth.
  11. 19. Where money comes from.