We were learning about molecules - fatty acids, soap & minerals. The experiment that went along with this subject was to pour milk into a bowl then a few drops of different colored food coloring. We then dipped a cotton bud into some soap, completely saturating it. Once we had done that we dipped the cotton but into the pool of milk to see the reaction, which was that the food coloring retreated from the soap.
I found it hard to do nothing really but I found it slightly difficult to get all the ingredients in the right place so the reaction was as impressive as it could be. I ended up getting the food coloring almost anywhere but the middle which was where I was aiming for!
I found it easy to understand the reaction because I had done this last year for my surface tension experiment. The soapy cotton bud broke the surface tension, causing the food coloring to recede rapidly.
I really enjoyed watching the reaction between the soapy chemicals and the fatty acids and minerals. The color was mesmerizing, it melded at the end creating a sort of bluey green.
Next time I will include my buddy group a bit more, ask them some questions and request their opinion. After all three minds are better than one! I can't do everything myself can I?
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