Across
- 3. When a planets atmosphere traps solar energy and causes surface temperature to increase is..?
- 4. What can't we use to measure distance on Earth?
- 6. What are millions of small rocky objects?
- 8. What is a spherical object that orbits the Sun?
- 9. Time of when an object travels once around the Sun it is?
- 10. Gas,dust, and ice the moves in a oval type of shape around the Sun is called?
Down
- 1. Time of when an object completes one rotation is called?
- 2. Io, Europa, Ganymede, and Callisto are..?
- 5. Planets closest to the Sun made of rock and metal are called?
- 7. What are the outer planets nickname?