Across
- 1. element that naturally undergoes fission
- 4. this splits as a fission reaction occurs
- 6. U.S. government research project that developed the atomic bomb
- 7. nuclear weapon
- 9. conducted for testing purposes only
- 11. nuclear weapon that uses fusion
- 13. many survivors died from exposure of this after the bombing
- 14. the name of the bomb dropped on Hiroshima
Down
- 2. branch of chemistry that nuclear chemistry belongs
- 3. the study of radioactive substances
- 5. "father of the atomic bomb"
- 8. element that naturally undergoes fission
- 10. Einstein wrote a letter to this president as a warning
- 12. the name of the bomb dropped on Nagasaki