3 mins
Dry Ice - Sublimation
Professor Hal Sosabowski demonstrates a simple yet effective experiment which reveals several properties of solid carbon dioxide, which teachers can use in Key Stage 3/4 science lessons.
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3 mins
Dry Ice - Exploding Bottles
Professor Hal Sosabowski reveals the explosive power of subliming dry ice in this demonstration idea for Key Stage 3/4 chemistry lessons to show that gases take up much more space than solids.
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3 mins
Dry Ice - The Magnesium Sandwich
Using two blocks of frozen CO2, Professor Hal Sosabowski demonstrates how magnesium is so reactive that it can cause carbon dioxide to act as an oxidant, in an idea to use in Key Stage 3/4 chemistry lessons.
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3 mins
Hydrogen - Rockets
An exciting lesson demonstration idea to use in Key Stage 3 and 4 chemistry lessons which illustrates what happens when hydrogen and air react.
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3 mins
Sodium Ethanoate Stalagmite
Ideal for planning Key Stage 3 and 4 chemistry lessons, Professor Hal Sosabowski demonstrates a solid spontaneously coming out of solution in this visually beautiful experiment creating a sodium ethanoate stalagmite.
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3 mins
The Minty Cola Fountain
Using just a bottle of fizzy cola and a packet of mints, Professor Hal Sosabowski demonstrates a dramatic, messy experiment for use in Key Stage 3 and Key Stage 4 chemistry lessons, showing carbon dioxide coming out of solution at immense speed.
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3 mins
The Pulsing Reaction
Show students a stunning and spectacular reaction by mixing three colourless solutions, in an experiment idea for Key Stage 3 and Key Stage 4 chemistry lessons, demonstrated by Professor Hal Sosabowski.
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3 mins
Glowsticks
A visually impressive experiment using glowsticks to show luminescence and rates of reaction, in this idea for Key Stage 3/4 chemistry lessons, demonstrated by Professor Hal Sosabowski.
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3 mins
Lycopodium Powder
Professor Hal Sosabowski creates imposing sheets of flame in front of his face, using lycopodium powder, a finely divided carbohydrate powder, in an experiment idea for Key Stage 3 and 4 chemistry lessons.
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15 mins
KS4 Science - Demonstrating Chemistry
Health and safety regulations frighten many science teachers away from exciting practical experiments. But there is no need to be afraid: support exists to ensure chemistry demonstrations are practical and safe.
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