2. What is radiation?

3. 1000 800 600 400 200 NUCLEAR DECAY HALF-LIFE SOURCES OF RADIATION IONIZING RADIATION NON- IONIZING RADIATON Final Jeopardy

4. People use this type of non-ionizing radiation to reheat food. Non-ionizing Radiation 200 Points

5. Back to question board What is microwave radiation? Non-ionizing Radiation 200 Points

6. This radiation is used in the operation of cell phones. Non-ionizing Radiation 400 Points

7. What are radio waves? Back to question board Non-ionizing Radiation 400 Points

8. Non-ionizing radiation is found at the low-energy end of this spectrum. Non-ionizing Radiation 600 Points

9. What is the electromagnetic spectrum? Back to question board Non-ionizing Radiation 600 Points

10. Non-ionizing radiation can do this to your skin if you do not wear sunscreen. Non-ionizing Radiation 800 Points

11. What is give you a sunburn? Back to question board Non-ionizing Radiation 800 Points

12. Non-ionizing radiation does not have enough energy to do this. Non-ionizing Radiation 1000 Points

13. What is ionize atoms or molecules? Back to question board Non-ionizing Radiation 1000 Points

14. Ionizing Radiation 200 Points X-rays have enough energy to pass through soft tissues of the body, but not these.

15. Back to question board What are bones and metal? Ionizing Radiation 200 Points

16. These devices can detect ionizing radiation that our senses cannot see, smell or taste. Ionizing Radiation 400 Points

17. Back to question board What are Geiger-Müller counters? (Also accept Geiger counters) Ionizing Radiation 400 Points

18. These types of rays have large amounts of energy and can ionize atoms in most types of matter. Ionizing Radiation 600 Points

19. Back to question board What are x-rays and gamma rays? Ionizing Radiation 600 Points

20. This may exist in the form of a high- energy photon or charged particle. Ionizing Radiation 800 Points

21. Back to question board What is ionizing radiation? Ionizing Radiation 800 Points

22. When these interact with the upper atmosphere, they create secondary x-rays and subatomic particles. Ionizing Radiation 1000 Points

23. Back to question board What are cosmic rays? Ionizing Radiation 1000 Points

24. Sources of Radiation 200 Points This is the largest source of ionizing and non-ionizing radiation in our Solar System.

25. Back to question board What is the Sun? Sources of Radiation 200 Points

26. This protects us from the ionizing radiation given off by the Sun. Sources of Radiation 400 Points

27. Back to question board What is the Earth’s atmosphere and magnetic field? Sources of Radiation 400 Points

28. Most of the human-made exposure to radiation people receive come from these. Sources of Radiation 600 Points

29. Back to question board What are medical imaging and treatments? (Also accept medical sources) Sources of Radiation 600 Points

30. About 70% of the radiation we are exposed to comes from here. Sources of Radiation 800 Points

31. Back to question board What is the Earth? Sources of Radiation 800 Points

32. This odourless, colourless gas, which can sometimes be found in mines and basements, is part of the decay chain of uranium-238. Sources of Radiation 1000 Points

33. Back to question board What is Radon (radon-222)? Sources of Radiation 1000 Points

34. Half-Life 200 Points An isotope’s half-life is the amount of time it takes for half of the atoms of an isotope to decay into this.

35. Back to question board What is another isotope? Half-Life 200 Points

36. The radioisotope uranium-238 has a half-life of this. Half-Life 400 Points

37. Back to question board What is 4.5 billion years? Half-Life 400 Points

38. The uranium-238 decay series ends with this stable isotope. Half-Life 600 Points

39. Back to question board What is lead-206? Half-Life 600 Points

40. There are this many radioactive decays in the uranium-238 decay series. Half-Life 800 Points

41. Back to question board What is 14? Half-Life 800 Points

42. This would be the amount of bismuth- 214 (half-life of 20 minutes) remaining after 1 hour if you started with 1000 g. Half-Life 1000 Points

43. Back to question board What is 125 g? Half-Life 1000 Points

44. A radioisotope will continue to undergo radioactive decay until this happens. Nuclear Decay 200 Points

45. Back to question board What is it becomes stable? Nuclear Decay 200 Points

46. This type of ionizing radiation is made up of two protons and two neutrons. Nuclear Decay 400 Points

47. Back to question board What is an alpha particle? Nuclear Decay 400 Points

48. An alpha particle is equivalent to the nucleus of this type of atom. Nuclear Decay 600 Points

49. Back to question board What is a helium atom? Nuclear Decay 600 Points

50. Gamma rays are in the form of these. Nuclear Decay 800 Points

51. Back to question board What are photons? Nuclear Decay 800 Points

52. Beta particles travel fast enough to penetrate clothing, but can be stopped by these. Nuclear Decay 1000 Points

53. Back to question board What are a thin sheet of aluminum or a piece of wood a few centimetres thick? Nuclear Decay 1000 Points

54. The Category is: Nuclear Decay

55. The radioisotopes Carbon-14, Cesium- 137 and Cobalt-60 all have this in common.

56. What is they are beta emitters?

57. …and thank you for playing CONGRATULATIONS! The team with the most points is…..

58. Go to question