Across
- 2. center of a atom
- 4. causes tides
- 5. go around sun
- 9. neutral charge of a atom
- 10. hole big black hole
- 12. goes around a atom
- 16. what every thing is made up of
- 18. energy energy that can be used again
- 19. center of solar system
- 20. positive charge of a atom
Down
- 1. energy nukes energy
- 3. dirty snowball
- 6. renewable energy energy that cant be used again
- 7. energy energy that could happen
- 8. water sticks to things that are not water
- 11. made up of multiple atoms to make something
- 13. 3rd planet from sun
- 14. blue renewable energy
- 15. water sticks to water
- 17. shed mountain water go to one place