Across
- 3. Made of gas
- 5. Dirty snowball
- 6. Has rings
- 7. Meteor that hits the surface
- 8. First scientist to believe in heliocentric
Down
- 1. Coldest planet
- 2. Grain of sand to 1000 km diameter
- 3. Has a big red spot
- 4. Planets Celestial
- 7. Natural satellites