Roller coaster stem activity

This looks like a fun science experiment! Definitely going to try it with my girls. Sometimes its hard to find fun experiments involving food because of my daughters food allergies, but we can definitely do this one 🙂 Thank you for sharing at the Thoughtful Spot Weekly Blog Hop, you were featured as one of my favorites this week 🙂 However, when the cotton swab and liquid dish soap is added to the milk, the soap reduces the surface tension of the milk and reacts with the fat and water molecules. This interaction causes the fat particles in the milk to move and create swirls of color. Make a rainbow to learn all about density in this awesome science experiment! Rookieparenting.com provides science activity ideas for informational purposes only. Rookieparenting.com does not make any this model guarantee or representation regarding such ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information.