Across
- 2. in what year did a 300-meter asteroid pass near earth
- 4. what are asteroids made out of
- 8. where are most of the asteroids in our solar system
- 9. what is bigger than France
- 10. how many small rocks hit the earth every year
Down
- 1. do asteroids crash into planet
- 3. how big is Ceres
- 5. a object in space which is smaller than a planet and orbits the sun
- 6. is earth in danger of asteroid crash
- 7. how many asteroids are there in our solar system