Spaced Out

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Across
  1. 3. When the Earth is tilted so the Northern Hemisphere is away from the sun, what season is it in the South?
  2. 8. The force that causes the changes in water levels on Earth
  3. 10. The number of hours it takes for Earth to complete one rotation
  4. 11. When the moon is less than half lit
  5. 12. The change in water levels on Earth
  6. 14. A tide that occurs when there is a new or full moon
  7. 15. What lies between Mars and Jupiter
  8. 16. A phase/position of the moon that causes a neap tide
  9. 19. Word used to describe the amount of time it takes for a planet to rotate once around the sun
Down
  1. 1. When the moon is more than half lit
  2. 2. The number of outer planets
  3. 4. The name of our galaxy
  4. 5. When the moon is moving from a full moon to last quarter, it passes through which phase?
  5. 6. The approximate number of days it takes Earth's natural satellite to orbit around the planet
  6. 7. The planet closest to the sun
  7. 9. The name used to describe a celestial body that orbits a star
  8. 13. The biggest star in our solar system
  9. 17. The only planet known to support life
  10. 18. The Earth's natural satellite