Oobleck: A Dr. Seuss Science Experiement for Preschoolers

Today was tactile/sensory play day for Johanna, and I felt like I was running out of ideas, so I ran to instructables.com. That’s when I stumbled upon oobleck! According to instructables:

Oobleck gets its name from the Dr. Seuss book Bartholomew and the Oobleck where a gooey green substance, Oobleck, fell from the sky and wreaked havoc in the kingdom. Here the Oobleck will be made in a bowl and will likely make a mess, but only because you can get carried away playing with it.

Processed with VSCOcam

Processed with VSCOcam

We loved it! It’s so ooey and gooey and slimy and fuuunnn! It’s a great experiment to do with your kids and to get them describing something a little different. Johanna’s favorite word for it was gooey. I went with sticky and slimy. She liked to feel it spread underneath her hand and through her fingers.

1c. water
2 c. cornstarch
Food coloring (optional)
Paper plate or bowl

Mix the water and cornstarch together. Add the food coloring if you are using it. Wait 2-5 minutes for it to thicken. Go play! Use this opportunity to ask your little ones to describe the texture of the oobleck. How does it do? Is it hard or soft when it’s pushed? How about when you squeeze it?

I hope you all have as much fun with oobleck as we did!

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