Sarah’s science experiment at the San Antonio Zoo is a fun and educational way to celebrate the U.S.A. and teach some science at the same time. If you’re looking for a unique way to do this experiment at home, look no further than her video. To perform the experiment, you’ll need a pie tin, whole milk, cookie cutters (optional), red and blue food dye, dish soap, and a dropper (optional). Start by filling the bottom of the pie tin with a thin layer of milk, placing cookie cutters in the milk (if using), and adding red and blue food dye onto the milk. Then, use a dropper or q-tip with a small amount of soap to drip soap into the pan and watch as the colors fan out, creating magic milk fireworks.
The magic happens because soap breaks down fat molecules in the milk, causing it to break apart in different directions. This is how soap works to clean up particles and food residue. If you’d like Sarah to come to your school and conduct a science experiment live on KSAT, all you need to do is fill out a form on their website. Winners are selected at random, so don’t hesitate – apply today!