Across
- 4. large objects in space that orbit a star such as the sun
- 6. an envelope of gas surrounding an object in space
- 9. this is the largest object in the solar system
- 10. this is what planets orbit in (it is not an exact circle)
- 11. this is the number of planets in the solar system
Down
- 1. a star, such as the sun, and all of the objects that revolve around it in space
- 2. dark area on the sun's surface that gives off less energy than the rest of the sun
- 3. glowing ball of hot gas that makes its own energy and light
- 5. the entire solar system is held together by this
- 7. natural satellite that orbits a planet
- 8. another name for moon