Across
- 3. The furthest planet from the sun
- 5. The only planet that humans have walked on
- 7. The word used to describe the planets travelling around the sun
- 8. The largest object in the whole solar system
- 9. The closest planet to the sun
- 10. A planet that's sometimes referred to as the 'red planet'
Down
- 1. An object that helps humans see the moon, stars and planets.
- 2. The largest planet in our solar system
- 4. The number of planets in our solar system
- 6. Jupiter, Saturn, Uranus and Neptune all have .... around them
