Inner Planets

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Across
  1. 2. Planet with no moons.
  2. 4. Planet that has living things on it.
  3. 6. Planet with a red surface (the "red planet").
  4. 8. The inner planets have a _______ surface.
  5. 9. Venus is the _______ planet.
Down
  1. 1. Closest planet to the sun.
  2. 3. Mercury is the _______ planet.
  3. 5. Mars is the _______ planet from the sun.
  4. 7. Planets, The four planets closest to the Sun.