Lesson Two: Post Lab Questions

Post lab questions 1.What materials are best for shielding? 2.Gamma radiation, a powerful type of radiation emitted from some radioactive isotopes, has no weight. What other types of radiation particles have no weight? 3.Because you could not see the radiation, what kind of observation did you experience? 4.What is happening to the radioactive source? 5.What radiation "footprints" did you see? Describe them. 6.Why do we measure radiation exposure? 7.When you use a Geiger counter to survey a radioactive substance, why is it important to know what the background radiation level is? 8.Has anyone you know been helped or harmed by radiation?