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A simple visual demonstration of the effects of reducing the pressure inside a bell jar on the boiling of warm water.
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A simple demonstration to show that sound does not travel through a vacuum
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A series of short, simple practicals to demonstrate the relationship between pressure and volume of an ideal gas.
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This document describes a demonstration for safely buring red phosporus in air, emulating the traditional burning white phosphorus in a bell jar experiment. The activity also provides a reasonbly accu..
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Bell Jar Experiments Showing Boyles Law
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Showing how a decrease in air pressure affects sound levels
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Using atmospheric pressure to push a boiled egg into a conical flask
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Showing the effects of a lower air pressure on the boiling point of water.
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Risk assessment information about red phosphorus. For white/yellow phosphorus, see Hazcard 73A.
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Updated from section 14 of the CLEAPSS Handbook, this guide suggests equipment and devices which can be used in breathing investigations. It includes a quite detailed appendix on using a traditional s..
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