Across
- 2. The galaxy that our Solar System is found in
- 5. The hottest planet in our Solar System
- 6. The gas that makes up the sun
- 7. The reason we have tides and waves on Earth
- 9. Made up of billions of stars
Down
- 1. Created when a large star explodes
- 3. Caused the extinction of Dinosaurs 65 million years ago
- 4. The planet nearest to the Sun
- 8. Pluto is this type of planet