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In case you aren’t aware, Oobleck is the name of what you make when you mix corn flour ( corn starch) with water. The term Oobleck was used in the Dr Seuss book Bartholomew and the Oobleck. This is a great science experiment to do with children. It opens the discussion about it being a non-Newtonian liquid as it moves like a liquid but feels like a solid if you use force on it.
My son loves science experiments, he’s at the age where he’s very curious about how things work. It’s so simple to make as well as you’ll see below. Glitter and food colouring is obviously optional but it does make it more fun.
Be prepared because this experiment will get extremely messy very quickly. It’s all good fun though and a great sensory activity.
How to make it:
- 1 cup of corn flour
- 1/2 cup of water with food colouring in
Obviously if you would like to make a bigger amount use a large baking dish to avoid all the mess. Always ensure that you use double the amount of corn flour (corn starch) to water and add the water very slowly to make sure you don’t put too much water in. The mixture will get quite thick quickly so it will become very difficult to stir but that’s perfectly normal.
When you dispose of the Oobleck, do not put it down the drain as it can clog up the system. Put it instead in the bin or your food waste bin if you have one.
For more science and craft idea boxes 2-10 years old, check out Green Kids Crafts (Affiliate link). We love slime too so be sure to check out our easy slime recipes for more sensory experiences.