Across
- 2. deep in the Earth and acts like a lava lamp
- 4. closest star to Earth
- 5. ball of burning gas in space
- 6. everything that exists
- 7. usable power like heat or light
- 9. path that the Earth takes around the sun
Down
- 1. a spot on the sun that is cooler and darker than its surroundings
- 2. round objects in outer space that go around the sun
- 3. system contains planets, sun, and small objects in space
- 8. can be used to make things burn or float; air