Secondary Subject Chemistry Videos

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Sodium Ethanoate Stalagmite

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Creating solids from a sodium ethanoate solution Prof Hal Sosabowski demonstrates a solid spontaneously coming out of solution in this visually beautiful experiment. Just a few crystals are enough to form a nucleatio...

The Minty Cola Fountain

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Creating a minty cola fountain in Key Stage 3/4 chemistry Prof Hal Sosabowski demonstrates carbon dioxide gas coming out of solution at immense speed in this remarkable experiment, which needs only a bottle of fizzy ...

The Pulsing Reaction

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Mixing three colourless solutions to produce a pulsing reaction Prof Hal Sosabowski shows us a stunning and surprising reaction, by mixing three colourless solutions. This demonstrates autocatalysis, whereby the prod...

Glowsticks

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A visually impressive experiment using reactions in glowsticks Prof Hal Sosabowski demonstrates how glowsticks work in this visually impressive experiment, which can be used to teach about luminescence and rates of r...

Lycopodium Powder

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Using lycopodium powder to show rates of reaction Prof Hal Sosabowski creates imposing sheets of flame in front of his face, using lycopodium powder - a finely divided carbohydrate powder. This impressive spectacle i...

Dry Ice – The Magnesium Sandwich

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Demonstrating the reactivity of magnesium with carbon dioxide Using two blocks of dry ice, Prof Hal Sosabowski demonstrates how magnesium is so reactive that it can cause carbon dioxide to act as an oxidant. The resu...

Hydrogen – Rockets

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Looking at what happens when hydrogen and air react Prof Hal Sosabowski uses an explosive mixture of hydrogen and air in a plastic bottle, to show how rockets work and to demonstrate Newton?s third law that every act...

Hydrogen – Exploding Eggs

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Find out how pure hyrdogen burns in an experiment idea for KS3/4 Prof Hal Sosabowski fills eggs with hydrogen gas and uses this to show how pure hydrogen burns, but a mixture of hydrogen and air becomes explosive. In...

Dry Ice – Sublimation

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Ideas for dry ice sublimation experiments for KS3/4 chemistry Prof Hal Sosabowski demonstrates this simple yet effective experiment, which reveals several properties of solid carbon dioxide. Hal shows us how clouds o...

Dry Ice – Exploding Bottles

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Revealing the explosive power of subliming dry ice in chemistry Prof Hal Sosabowski reveals the explosive power of subliming dry ice, in this demonstration to show that gases take up much more space than solids. As d...