Chemistry

Freezing Lemonade in front of your eyes

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Open a bottle of lemonade and watch it freeze solid!

Freezing lemonade by lowering air pressure.
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Psychedelic Milk

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A little milk, a little food dye, a little washing-up liquid... and an amazing display of colour. See the stunning swirling effects from disrupting the surface tension.

See the amazing patterns made by food colouring and detergent in milk.
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1
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Thixotropic sand and fluidised bed

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Find out more about quicksand and how sand can behave like a fluid.

Looking at floating and sinking using a bed of sand
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1
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Water, Oil, and Ice

Watching coloured ice melt and sink through castor oil.
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Locusts and Glowsticks

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What do glowsticks and locusts have in common? Watch what happens as we heat them up and cool them down - how long can you get your glowstick to glow? How fast can you make the locusts move?

Using glow sticks to talk about chemical kinetics.
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Frequency of use: 
1
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Sodium Acetate

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Find out about how handwarmers work, and see solid crystals form in seconds right in front of your eyes.

Rapid crystal growth from sodium acetate.
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Frequency of use: 
1
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Fire Extinguishers

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What does a fire need to burn, and how can we put it out? Find out how we can put out a candle with a cupful of gas!

Demonstrating the power of a carbon dioxide fire extinguisher.
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Frequency of use: 
3
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Giant Bubbles

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I'm forever blowing bubbles... but why aren't any of them square? Can you make a square bubble? Come and have a go...

Making giant soap bubbles and looking at how they behave in different shaped frames.
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Red cabbage

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We use a little red cabbage juice to find out more about acids and bases in the world around us.

Making a natural pH indicator.
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Frequency of use: 
3
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Sweet Chromatography

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Using just water and bits of paper, split up the colours in pens and food colourings to see how they're made up of a mixture of differently coloured dyes.

Using chromatography to investigate the colour of food.
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