Saturn and Jupiter

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Across
  1. 1. The astronomer that discovered the four largest moons of Jupiter.
  2. 6. The gases that make up Jupiter and Saturn are ___ and Helium.
  3. 9. The latest space probe to observe Saturn's atmosphere.
  4. 11. Titan has oceans made up of _____ gas.
Down
  1. 2. What gas under extreme pressure turns into.
  2. 3. The core of Jupiter is made up of _____.
  3. 4. The rings of Saturn are kept in order by ____ moons.
  4. 5. The _____ of Saturn is less than water.
  5. 7. The rings of Saturn are made up of dust, rock, and ____.
  6. 8. The name of Saturn's largest moon.
  7. 10. Saturn is the _____ planet from the sun.