Across
- 2. If the radioactive source is outside the body, what is the most harmful radiation source?
- 4. What unit is used to measure radioactivity?
- 5. What is the most radioactive substance on earth?
- 9. How many bananas have the same amount of radiation to a handful of raw uranium?
- 11. Is energy given off by matter in the form of rays or high-speed particles
- 13. If ever exposed to radiation what is the first thing you do?
- 15. What country is the largest producer of nuclear power?
- 17. What power source provides 14% of the world's electricity?
- 18. - If the radioactive source is inside the body, it is the most dangerous of all 3 radiation sources?
- 19. What material blocks Gamma rays?
Down
- 1. What is one thing that Marie Curie discovered?
- 3. How many nuclear weapons have been used in warfare?
- 5. What is the symbol of Polonium?
- 6. What is one of the rays the sun emits?
- 7. Who survived the highest radiation dose in any human
- 8. Who discovered Radioactivity?
- 10. There are two types of radiation natural and …?
- 12. What does uranium decay into?
- 14. What can radiation cause?
- 16. What colour has the American flag on the moon turned to due to radiation?