Across
- 3. earth moves between the sun and moon
- 6. path a planet takes around the sun
- 7. largest planet
- 8. planet most similar to earth in size
- 9. smallest planet
Down
- 1. huge ball of glowing gas
- 2. moon moves between the earth and the sun
- 4. all of the gases that surround a planet
- 5. number of planets in the solar system
- 9. big piece of rock moving towards earth