Make your own crazy goo
How to... make your own crazy goo!
In this bite size experiment make a crazy goo and see the effect that forces have on it when it is a liquid and a solid! Remember - if you are trying any of these experiments at home you will need the consent and supervision of your parent or guardian.
What you will need:
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- Cornflour
- Jug of water
- Food colouring
- Spoon
- Small bowl or container
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Once you have collected the materials, follow the steps below to make your own crazy goo.
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Step 1
To the bowl or container add a few heaped spoonfuls of cornflour (this will be determined by the size of your container). Then fill a jug with some cold water from the tap and to this add a few drops of food colouring. |
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Step 2
Make a well in the middle of the cornflour and add a little of the coloured water then mix in a slow circular motion. When the water has been mixed in, add a little more and carry on stirring slowly until you have a thick custard-like consistency. If it looks too watery just add a little more cornflour. |
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| Step 3
Test that your crazy goo is ready by hitting the surface of the goo with a spoon. The goo should resist any great force and should spring back like rubber. It should also behave like a liquid when stirred gently or is picked up and allowed to drip back into the bowl. |
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Step 4
Have fun! Try rolling your goo into a ball and see how long you can hold its shape for until it returns to liquid form and starts oozing through your fingers!
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Other things to try:
Why not try using different colours of food colouring for your crazy goo or experiment with different cornflour to water ratios to create the ultimate crazy goo. This experiment also works with custard powder if you have no cornflour.
