What Do You Know About Earth?

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Across
  1. 2. The circumference of Earth is 24,901 _____.
  2. 5. What is the largest continent on Earth?
  3. 6. Earth's atmosphere is made of ____.
  4. 9. It takes 24 _____ for Earth to rotate on it's axis.
  5. 12. What is the smallest continent on Earth?
  6. 15. Earth is _____ closest planet to the sun.
  7. 16. What imaginary line is the Earth divided by?
  8. 17. Earth is constantly ________.
Down
  1. 1. Earth is _____ million miles away from the sun.
  2. 3. It takes 365.2564 ____ for Earth to rotate around the sun.
  3. 4. Earth's surface is mostly _____.
  4. 7. Earth is not flat, but what?
  5. 8. How many hemispheres is Earth divided into?
  6. 10. What ocean is the largest?
  7. 11. Earth is 4.5 _____ years old.
  8. 13. How many continents are on Earth?
  9. 14. What is Earth's largest rainforest?
  10. 17. Earth has a north and ______ pole.