🧪 Science with Sarah: Magic Milk Fireworks at the San Antonio Zoo! 🎆

Celebrate 4th of July with this fun, easy experiment

SAN ANTONIO – 👉 Watch the video of Sarah’s science experiment here!

Hello parents, teachers and students! If you’re looking for fun way to celebrate the U.S.A. and teach a little science, this experiment is for you! Today we’re with the San Antonio Zoo, making magic milk fireworks.

Be sure to check out GMSA@9 on Wednesdays when Meteorologist Sarah Spivey does the demonstrations and explains the science behind it.

HERE’S WHAT YOU’LL NEED

Materials needed for magic milk fireworks (Copyright 2024 by KSAT - All rights reserved.)
  • Pie tin
  • Whole milk
  • Cookie cutters (optional)
  • Red and blue food dye
  • Dish soap
  • Dropper (optional)

DO THE EXPERIMENT

Drop red and blue food dye onto milk. (Copyright 2024 by KSAT - All rights reserved.)
  • STEP 1: Fill the bottom of a pie tin with a thin layer of milk
  • STEP 2: Place the cookie cutters (if using) in the milk and drop a few red and blue food dye onto the milk
Drop soap onto the food dye (Copyright 2024 by KSAT - All rights reserved.)
  • STEP 3: Using the dropper or a q-tip with a small amount of soap, drip soap into the pan and watch as the colors fan out!
Magic milk fireworks! (Copyright 2024 by KSAT - All rights reserved.)

HOW IT WORKS

Soap breaks down the fat molecules in the milk, causing it to break apart in different directions. In fact, this is how soap works! Breaking down food and other particles, cleaning along the way!

APPLY FOR SCIENCE WITH SARAH

If you’d like Sarah to come to your school and conduct a science experiment live on KSAT, fill out this form. “Winners” are selected at random.


About the Authors

Sarah Spivey is a San Antonio native who grew up watching KSAT. She has been a proud member of the KSAT Weather Authority Team since 2017. Sarah is a Clark High School and Texas A&M University graduate. She previously worked at KTEN News. When Sarah is not busy forecasting, she enjoys hanging out with her husband and cat, and playing music.

Ben Spicer is a digital journalist who works the early morning shift for KSAT.

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