I love fun Science experiments, and it doesn’t get too much more fun than Oobleck! Oobleck is another term for a cornstarch and water experiment. It’s a perfect lesson for any introduction to science or solids/liquids/suspension unit. So simple but way fun!
- 2 Clear Cups/Bowl
- Food Coloring (Optional – if used, add to water first)
Here’s What To Do:
- In one cup pour water. Fill the other cup with cornstarch.
- Let kids explore each one separately. How do they feel and smell? You might want to have students write about each and draw a picture.
- Then, slowly add water to cornstarch. Mix as water is added to the cornstarch.
- Take time to feel and play with the mixture! Dig in and use those hands! Students will discover there is something different about this mixture!
- Try to roll the mixture into a ball with your hands; then, watch what happens if you stop.
- Some other things to try: slap the mixture with a spoon, watch it drip between your hands, squeeze it hard, let it sit on a table for a minute, then try to pick it up, or try bouncing it like a ball on a hard surface.
- You may decide to have students write about the experiment when finished.
I will warn you this can get messy!
Cleanup Time: Use warm water to wash off hands and a wet rag to remove from any surface. If it gets on clothes (and it will!), just let it dry and it will peel off. Make sure to throw away; DO NOT pour it down a drain!