Across
- 3. Mercury has no _____
- 6. _____ has a thick atmosphere.
- 9. ____ is the coldest planet.
- 10. venus is the hottest planet in the _____system.
- 11. _____ is not a perfect sphere.
- 12. Mars is often called the red ______
- 13. Venus is often referred as _____ sister planet.
- 14. Earth is the only known solar planet to ______ life.
Down
- 1. Mars is the _____ planet from the sun.
- 2. _______ is the closest to the sun.
- 4. Mercury is the ________ planet and closest to the sun
- 5. Mercury has the fastest ________.
- 7. Venus has ____ rotation.
- 8. Earths has the hottest ____.
- 15. Mars has ___ moons.