P2 concept 1 radiation

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P2 concept 1 radiation

  1. 1. Demo: Background radiation Geiger–Muller tube and counter
  2. 2. Notes…The word ‘Radioactive’ is… …used to describe a material, atom or element that emits radiation (alpha, beta or gamma). Radiation is emitted from unstable nuclei of atoms and is a random process. These radiation can be in the form of electromagnetic waves, or energetic particles. Radioactive elements are naturally found in the environment, contributing to background radiation e.g. rocks and food.
  3. 3. Task Calculate your annual dose of background radiation.
  4. 4. Check learning Where does radiation come from?
  5. 5. 4 2 6 1 6 3 2 9 5 6 Copy the table into the back of your book 4 0 Starter Designed by Eugene Brunet; Adapted for PowerPoint by A. Camburn, St George School 6
  6. 6. The history of radioactivity • Prepare a role-play to tell the story of how the ideas about the dangers of using radioactive materials developed. • Time: 30 minutes
  7. 7. Scene 1 Bequerel and research assistants • Discovery of gamma rays from uranium
  8. 8. Scene 2 Marie Curie part 1 • Her research, unaware of the dangers
  9. 9. Scene 3 Quack cures • Early misguided use of radioactivity
  10. 10. Scene 4 Marie Curie part 2 • Her medical achievement and suffering
  11. 11. Scene 5 Hiroshima • The legacy of atomic bomb
  12. 12. Scene 6 Hospital waiting room • Modern radiation treatment

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