Across
- 3. What moon is larger than Mercury?
- 4. What way does Europa spin?
- 6. What is the third Largest Galilean Moon?
- 7. What is Io not likely for life?
- 8. What is the surface of Callisto covered with?
- 12. What is the third-largest moon in the Solar system?
- 13. How many main layers does Ganymede have?
- 14. What were the moons originally named?
Down
- 1. Who discovered Ganymede?
- 2. Which moon has an iron core and rocky mantle?
- 5. What makes a lot of heat within Io?
- 7. What can Io develop?
- 9. What month was Io discovered?
- 10. How many years old is Callisto?
- 11. How many minutes does it take Europa to reach the sun?
- 15. What does Europa's surface contain?