Across
- 2. The first nuclear test
- 3. The primary gas of natural gas
- 5. The amount of nuclear weapons used in war
- 6. Oil can be _____ which makes it widely used
- 8. Positive charge of an atom
- 10. Nuclear process of joining atoms
- 12. Coal's primary use
- 13. How we get natural gas out of the ground
- 14. What fossil fuels are mostly made of
Down
- 1. The country who used nuclear weapons in war
- 4. Precipitation caused by burning of coal
- 7. Negative part of an atom
- 9. Non-charged part of an atom
- 10. Nuclear process of splitting atoms
- 11. The "everyday" name for petroleum