Across
- 3. Mostly know as a natural satellites
- 5. First to use a telescope
- 6. Leftover remains of the formation of the solar system
- 8. Chunks of asteroids or planets
- 9. not enough mass and gravity to clean their orbit
Down
- 1. Made a model of the solar system
- 2. also know as the little bear
- 3. some People call them shooting stars
- 4. every 100 million years extremely large ones hit Earth
- 7. Composed of ice, rock, and gas
