Across
- 2. the only star in our solar system
- 4. big balls made of really hot gases
- 7. an object in space with gravity so strong that it pulls everything into it
- 8. the group of planets that have gaseous surfaces
- 9. a natural object that orbits a planet
- 10. has a tail made of ice
Down
- 1. the group of planets that have rocky surfaces
- 3. an irregular shaped figure that orbits the sun and is a rock
- 5. the air that surrounds Earth
- 6. made of gas, dust, billions of stars, and things that orbits those stars