Across
- 5. The 'red planet'
- 7. This contains everything
- 9. The hottest planet in the solar system
- 14. Object at the centre of our solar system
- 15. Causes day and night
- 16. The name for an object orbiting a planet
- 17. This force keeps objects in orbit
Down
- 1. Small rocks in space
- 2. The time for a planet to orbit the sun once
- 3. The planet with the largest rings
- 4. The furthest planet from the sun
- 5. Closest planet to the sun
- 6. The largest planet in the solar system
- 8. Causes the seasons
- 10. Blocks the sun during a lunar eclipse
- 11. Blocks the sun during a solar eclipse
- 12. The name of our galaxy
- 13. The time for a planet to rotate once