Across
- 4. Which planet rotates on its side?
- 5. What keeps us on Earth?
- 6. Which planet is the hottest?
- 8. Which planet is the biggest?
- 13. Which group of planets are made of rocky material?
- 14. Which planet is the world of water?
Down
- 1. Which planet is the smallest?
- 2. Which group of planets have multiple moons and are very big?
- 3. Who discovered gravity?
- 7. Which planet is the coldest?
- 9. What fruit was involved in the discovery of gravity?
- 10. Name the planet on which some people think there was life at one point.
- 11. Which planet has lots of rings?
- 12. How many planets are in our Solar System?