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Teachers TV
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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.
Dry Ice - Exploding Bottles
From the Teachers TV series Demonstrating Chemistry, this video features Professor Hal Sosabowski from the University of Brighton. He reveals the explosive power of subliming dry ice to demonstrate that gases take up much more space than solids. As the dry ice sublimes, its volume increases dramatically, creating enough pressure to explode a plastic bottle with a very loud bang. The demonstration uses a 2 litre plastic bottle, carbon dioxide chips, boiling water, a funnel and safety equipment. Tips for a successful demonstration are given at the end of the film.
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