Earth and Space

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Across
  1. 2. The fourth planet from the sun.
  2. 4. The sixth planet from the sun.
  3. 6. The force that holds the planets in orbit around the sun.
  4. 11. Giant balls of hydrogen, helium, and other gases held together by gravity.
  5. 15. It takes 365 days for the earth to _____ around the sun.
  6. 16. It takes 24 hours for the earth to ______ on its axis.
  7. 17. The stars appear to move across the night sky because of the ________ of the earth.
  8. 19. The second planet from the sun.
  9. 20. A meteoroid that hits the Earth's surface.
  10. 21. The sun rotates in a ____________ diection.
  11. 23. The medium or average sized star at the center of our solar system.
  12. 24. The eighth planet from the sun.
  13. 25. The half of the earth below the equator is the _________ hemisphere.
Down
  1. 1. The fifth planet from the sun.
  2. 3. Made of pieces of rock similar to the material that formed the planets. Many of them are located between Mars and Jupiter.
  3. 5. The half of the earth above the equator is the _________ hemisphere.
  4. 7. The third planet from the sun.
  5. 8. The seventh planet from the sun.
  6. 9. Orbits a planet
  7. 10. The closest planet to the sun.
  8. 12. A space rock that is still up in space. (Before it travels into the Earth's atmosphere)
  9. 13. A meteoroid that burns up in the Earth's atmosphere. (a "shooting star")
  10. 14. Made of dust, rock, and frozen water like a dirty snowball. They have a tail when the get close to the sun.
  11. 18. The sun appears to set in the _______.
  12. 21. Our sun looks bigger than all the other stars because it is the ________ star to us.
  13. 22. The sun appears to rise in the _______.