Across
- 3. Earth's outer layer
- 5. The fourth planet from the Sun
- 6. Venus is about 97% this gas, carbon __________ which keeps it hot
- 8. Center of the Sun
- 13. Scientist who discovered Jupiter's four largest moons
- 15. Eight __________ (not Pluto anymore) orbit the Sun
- 17. This planet probably has the fastest winds in the solar system
- 20. The hottest planet in the solar system
- 21. Piece of a meteor that has landed on Earth
- 22. The "crown" of the Sun only visible during a solar eclipse
- 23. This planet's poles gets 42 years of light, then 42 years of darkness
- 24. Force that attracts one body to another
- 25. Frozen water
Down
- 1. Venus as a super thick one
- 2. Icy bits and metal chunks that orbit Saturn and other planets
- 4. Seventh planet from the Sun
- 7. Elliptical paths of planets
- 9. Largest planet
- 10. Ball of ice, dust and gas
- 11. A solar ______ is a sudden blast of burning gas from the Sun
- 12. most famous planet for it's rings
- 13. ___________ effect, which keeps Earth warm
- 14. Planet closest to the sun
- 16. Gas created by Sun's nuclear reaction
- 18. Earth's satellite
- 19. The Sun is one of these
- 21. The layer of Earth below the crust
- 26. A crashing together of objects