Across
- 3. the tiny building block of everything
- 7. gives off radiation from and unstable atom
- 8. fast radiation made of tiny particles (electrons)
- 9. heavy radiation that can't go through paper
- 10. joining atoms together to make energy (like in the sun)
Down
- 1. strong radiation than can go through walls
- 2. can run out or take a long time to replace
- 4. the fuel used in most nuclear reactors
- 5. splitting atoms apart to make energy (in power plants)
- 6. that leftover radioactive material must be stored safely