The Planets

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Across
  1. 3. these planets orbit between the sun and the asteroid belt.
  2. 5. the sixth planet from the sun and the second largest in the solar system.
  3. 7. the eighth planet and has a frozen surface of nitrogen
  4. 10. these planets are made mainly of rocky material
  5. 12. these planets orbit outside the asteroid belt.
Down
  1. 1. the largest planet in the solar system and fifth from the sun
  2. 2. the seventh planet from the sun and is large and gaseous
  3. 4. these planets are made of ice and gas
  4. 6. the second planet from the sun and similar to Earth in size and mass
  5. 8. the planet closest to the sun
  6. 9. the fourth planet from the sun and called the red planet
  7. 11. the third planet from the sun.