Watch our video to find out how you can make gruesome pumpkin ooze using only simple cupboard ingredients.
Please note - this activity will require adult supervision.
The science bit:
This experiment shows what happens when an acid is mixed with an alkali.
The acetic acid contained in the vinegar reacts chemically with the bicarbonate of soda, which is an alkali.
The reaction produces water, a salt called sodium acetate, and the gas carbon dioxide which is released in the form of bubbles.
And as for the food colouring and the washing up liquid, well… they're just there to make the mixture extra frothy and colourful!
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