Across
- 3. it is the only planet known to have water on its surface
- 5. is named after the ancient greek god of the sky
- 7. is a dwarf planet
- 8. the planet closest to the sun
Down
- 1. is the sixth planet from the sun and the second largest
- 2. the second planet from the sun
- 4. is the largest of the four gas planets
- 6. was the roman god of the sea