Solar System Review

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Across
  1. 3. Jupiter, Saturn, Uranus, and Neptune are known as ____ giants
  2. 7. farthest planet from the Sun
  3. 8. when planets make a trip around the sun
  4. 10. the moon phase when we don't see the moon (moon is between the Earth and Sun)
  5. 11. when the planets spin
  6. 13. the largest planet
Down
  1. 1. the moon phase when we see half of the moon
  2. 2. the moon phase when we see the entire moon
  3. 4. Mercury, Venus, Earth, and Mars are known as this type of planet
  4. 5. we experience these because of the Earth's tilted axis and the Earth's revolution
  5. 6. the closest planet to the Sun
  6. 9. the smallest planet
  7. 12. The Sun is about ____ billion years old.