Across
- 5. What gives Mars soil it's reddish tint?
- 7. With what unit to you measure the average distance of planets from the Sun?
- 8. What's the only planet without an atmosphere?
- 9. Earth's atmostphere is made of a mixture of gases and _____ vapor.
- 10. What moves around the Sun in an oval-shaped orbit and is made of gas, dust, and ice?
Down
- 1. What are the planets closest to the sun called?
- 2. The time it takes an object to travel once around the Sun
- 3. What are the clouds in Venus made of?
- 4. What's an object that orbits the Sun and has a larger mass than the total surrounding objects?
- 6. What are small, rocky objects that orbit the Sun between Mars and Jupiter?