Across
- 3. Founder of Neptune
- 4. Similar appearance to Neptune
- 7. Surface Temperature
- 10. Takes 165 years
Down
- 1. discovered geysers spewing icy material
- 2. most dense ice giant
- 5. made up of hydrogen, helium and methane
- 6. number of rings
- 8. Discovery of Neptune
- 9. Neptune's largest moon