Across
- 4. To move in the shape of an oval
- 6. The star at the center of our solar system
- 7. A group of stars, planets, gases, and dust
- 9. A person who travels to space
- 10. The 4 planets that are CLOSEST to the sun
Down
- 1. The 4 planets that are FURTHEST from the sun
- 2. A group of objects that orbit a star
- 3. The name of our galaxy
- 5. The number of planets there are in our solar system
- 6. A ball of hot, glowing gas
- 8. The planet that we live on