Across
- 3. the spring of a planet
- 4. a part of the sun that is colder
- 5. what all planets do around the sun
- 7. made up of gas, dust, and billions of stars
- 8. the gravitational pull of the moon gives us
- 9. it could be gassy or terrestrial
Down
- 1. has a circular orbit and belongs in the asteroid belt
- 2. the part of the sun we don't see unless it's during an eclipse
- 4. when the sun gives a big burst of energy
- 6. the visible part of our sun