Across
- 4. A massive impact Crater on Mercury
- 5. Fast moving bands of wind in a planet's atmosphere
- 8. The distance where an object will break apart due to gravity
- 10. Rings made of ice and rock that orbit a planet
- 11. A huge canyon system on Mars, much larger than the Grand Canyon
- 13. A steep slope or cliff formed by faulting or erosion
- 16. When sunlight breaks molecules apart into smaller pieces
- 18. The largest moon of Neptune, with a backwards orbit
Down
- 1. The four largest moons of Jupiter
- 2. A system that uses radio waves to detect objects and measure distance or speed
- 3. Large gas giants like Jupiter and Saturn
- 6. Rocky planets with solid surfaces
- 7. The largest volcano in the solar system, located on mars
- 9. The largest moon in the solar system, orbiting Jupiter
- 12. The smaller and farther moon of mars
- 14. The larger and closer moon of mars
- 15. The largest moon of Saturn, with a thick atmosphere
- 17. A large highland region on Venus
