Across
- 2. There are eight planets in the ...... system.
- 3. ...... is one of the planets in the solar system.
- 5. The Moon is the Earth’s only natural .......
- 6. When there are no clouds, the ...... is clear.
- 8. An ...... knows a lot about stars and planets.
- 9. All the stars and planets make up the ......
Down
- 1. Mercury is the smallest ...... It is also the closest to the sun.
- 4. My grandpa has a big ...... on his balcony and he often observes the planets and the stars.
- 7. When you see a shooting ...... you should make a wish.