I’ve been lucky enough to teach some children about radiation and how to protect people from it at the Big Bang Fair. We did this through fun activities, which the children could get involved with. One activity involved shooting nerf guns at a person wearing a vest. The little darts were used to represent radiation and the more darts that stuck to the target’s vest, the higher the “radiation dose” they received. By moving the target to different distances, or by putting shielding (large boards with some holes in) in the way, or by reducing the time for which the nerf gun was fired, the radiation dose was altered and we could see how distance, shielding and time could be used to protect a person from radiation.
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