Across
- 1. The name given to our galaxy (5,3)
- 6. The 9th planet which is now a drawf planet
- 8. A natural satellite orbiting a planet (4)
- 9. Our planet (5)
- 10. A large rocky boulder orbiting the sun
- 14. An object slightly smaller than a planet (5,6)
- 16. Planet named after the Greek God of the Sea (7)
- 17. The name for the group of things surrounding the sun(5,6)
- 19. The gas which makes up the sun (8)
Down
- 2. A layer of gas around a planet (10)
- 3. A dusty ice boulder orbiting the sun with a long tail (5)
- 4. A rocky planet with a hot atmosphere of sulfuric acid (5)
- 5. The force which keeps things in orbit (7)
- 7. A device used to study the stars(9)
- 11. The largest planet in the solar system (7)
- 12. A rocky planet which is red in colour (4)
- 13. Name for the 4 large planets made of a gas (3,5)
- 15. A bright firey streak of rock burning through the sky (6)
- 18. A region between earth and Jupiter with lots of rocks (8,4)