MA STEM Week: Oobleck, Fall Edition!

Pumpkin Oobleck
Oobleck is a Museum favorite! Make it even more fun (and potentially a bit messier, sorry grown ups!) by making pumpkin oobleck! This can be as simple as using orange food coloring, or using half of a little pumpkin.
If you decide to use a small pumpkin, you only need one half. Scoop out the seeds in the middle and use that as your ‘bowl’ to pour and mix the ingredients!
1. Start with 2 teaspoons of water in a bowl.⁠
2. Add 1 teaspoon of glue. ⁠
3. Add 4-5 teaspoons of cornstarch one teaspoon at a time. ⁠
4. Mix it well.⁠
Oobleck is ready to use when it is difficult to stir and can be put into a ziploc bag to experiment with more. Though it’s difficult to stir when it’s ready, it still flows when the baggie is tipped. When placed in your hand, the Oobleck flows (liquid), yet feels dry and can be folded over itself (solid). So is it a liquid or a solid?!⁠
Thank you to National Grid, our official STEAM Partner for sponsoring this STEM week activity!

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