If you’re looking for a fun way to explore states of matter and solubility, then you’ll love this sensory experiment with Meteorologist Sarah Spivey! In this demonstration, we’ll be making oobleck – a non-Newtonian fluid that can exist both as a solid and a liquid depending on the amount of force used. To make your own oobleck, all you need is a large container, 2 cups of cornstarch, 1 cup of water, and some food dye (optional).
Here’s how to make your own oobleck:
1. Measure out 1/2 cup of water and add food dye to the water.
2. Place 1 cup of cornstarch in a large container.
3. Pour the colored water into the container with the cornstarch and mix using your hands (note: this may be messy, so have plenty of paper towels nearby and an apron to cover your clothes).
4. Try compressing the oobleck in your hands into a ball. Observe how it quickly “melts” into a liquid.
5. Store your oobleck in the fridge for later use or dispose of it in the trash after you’re done playing with it. Note: Do not pour large amounts of cornstarch down pipes as they can clog them.
If you want to learn more about this fascinating experiment and the science behind it, tune in to KSAT@9 on Wednesdays when Sarah Spivey does live science experiments!
