Across
- 3. explosion of a planet
- 5. oval shaped orbit of earth
- 9. the inner planets
- 10. accumation of matter
Down
- 1. large cloud of dust and gas
- 2. giants planets
- 4. where the planets move to the center
- 6. creation of energy by atoms
- 7. chunk of rock or dust in space
- 8. bang scientific theory that world was made 10-20 billion years ago