Across
- 5. What is the galaxy we live in called?
- 6. Uranus atmosphere contains helium, hydrogen and?
- 10. Neptune's atmosphere is?
- 11. Mercury doesn't have an- ?
- 14. What planet's moon is called Titan?
Down
- 1. jupiter's atmosphere contains hydrogen and?
- 2. Organisms on Earth could not survive without?
- 3. When you are exposed to sunlight, you are exposed to heat and?
- 4. Comets are partly made up of?
- 7. What is jupiter's moon called?
- 8. the habitable zone begins beyond?
- 9. what protects life on Earth?
- 12. what planet has a very thin atmosphere?
- 13. what is the dwarf planet called?
- 14. what is at the center of the Solar system?