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The most radioactive places on Earth

This video from the STEM Resources collection explains how ionising radiation comes from natural sources, including bananas, which are used as a scale in the video. Derek Muller goes to Hiroshima, a uranium mine, the lab of Marie Curie, the Trinity nuclear bomb test site in New Mexico, in an aeroplane in flight, Chernobyl, and Fukushima. He also discusses how astronauts receive the most radiation in their profession but that this is very little compared to the radiation received from smoking cigarettes.

This video could be used as a starter to the topic, to provoke discussion and provide context to the topic. It could also be placed towards the end of the topic, where students could research which radioactive isotopes are relevant to each place in the video.

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This article is from the free online course:

Teaching Practical Science: Physics

National STEM Learning Centre