DIY Science Experiment #18 - Colorful Dancing Oobleck!
Materials: 2 cups of cornstarch, 1 cup of water, a subwoofer, a thin metal cookie sheet, a few MP3 recordings, food coloring
- Place the cookie sheet onto the speaker of the subwoofer.
- Mix the cornstarch and water and pour this mixture onto the cookie sheet.
- Download different songs and see what works best for you. It works best to experiment with 40 Hz, 50 Hz, and 63 Hz with the volume turned up.
- While the oobleck is dancing, carefully add drops of your favorite food coloring for a colorful surprise!
- Try searching for a subwoofer test MP3 for best results.
How does it work? The oobleck is a non newtonian fluid, since it can act like both a solid and a liquid at the same time. When vibrations are applied through music, the cornstarch is able to hold its shape.