Why Pumpkin oobleck? Because I love pumpkins! I have been so excited for all the awesome Fall sensory science play we have tried this season. We have an awesome collection of Pumpkin Science Activities to check out! This Non-Newtonian fluid is cool when you add it to a pumpkin! Find new ways to learn and play with pumpkins this Fall season.
PUMPKIN OOBLECK WITH A REAL PUMPKIN
Super Simple 3 Ingredient Hands-On Science Play with Real Pumpkins! I love checking out my kitchen pantry for science experiments.
pumpkin (we used half of a 3 pound sugar pumpkin from grocery store)
bowl and plate or cookie sheet and spoons
We made an awesome, simple, one bowl, grain-free pumpkin bread with the other half! Click here for recipe
How To Make Pumpkin Oobleck
As I said above, we only used half a pumpkin which was perfect for our needs. If you have a few kids or a class, use the whole thing! However, we did bake the other half and made a delicious Fall treat with it! This mixture is for 1/2 a pumpkin. You might want to mix the oobleck a half at a time of you are using the whole pumpkin. It’s definitely a recipe you need to tweak to your liking and sensory needs.
1. Cut pumpkin in half and clean out guts and seeds (awesome time to discuss pumpkin parts too!)
2. Measure 1 cup of cornstarch and pour in bowl with seeds and guts (save a few seeds for the stop if you like)
3. Add about a half cup of water
4. Mix well and fill pumpkin half
5. Place on a cookie sheet or plate for easy play. Add spoons for those reluctant to touch it.
Mixing Note: If the mixture is to runny, add starch and vice versa. You should be able to pick it up like a solid and have it begin to ooze as a liquid. That’s oobleck in nut shell! Also note, you may need to adjust for the amount of pumpkin guts in your pumpkin and the size of the pumpkin!
Sensory Note: This definitely can get oozy and gooey and provide quite a sensory punch. It’s not for everyone. My sone enjoys using spoons but doesn’t necessarily care to get it all over his hands, so I don’t push it. He does enjoy oobleck because if you poke it with your finger it feels firm and smooth with little residue
What Is The Science Behind Pumpkin Oobleck ?
Oobleck is usually a mixture of cornstarch and water. Roughly a 2:1 ratio but you can tinker with the ratio to find a desired consistency that still maintains the properties of oobleck.
Well, it’s a solid. No wait it’s a liquid! Wait again, it’s both! Very fascinating to be exact. Pick up solid chunks, pack it into a ball and watch it ooze into a liquid. This is called a non-newtonian fluid, a substance that acts like both a liquid and a solid.
What a fun and simple way to play with a pumpkin! Pumpkin Oobleck is great messy science sensory play! Talk with your kids about what oobleck feels like. It’s really a crazy mixture. It oozes, melts, hardens, liquifies and slimes. Pumpkin oobleck makes for great conversation, new vocabulary and a chance to learn a little bit about science all with hands-on play!
TRY PUMPKIN OOBLECK FOR FALL SCIENCE!
More Science in a Pumpkin ideas to try! Click on photos!