The HYG expriment was a really fun time. Normally, I am aprehensive when it comes to anything scientific, mainly because I do not have much confidence in my scientific abilities, but this experiment creates a low-affect environment, that makes learning fun and exciting. We discussed in small group, our predictions for the outcome when we mixed 2 scoops of Ca Cl (Calcium Chloride), one scoop of Baking Soda, and 10 mls of Phenol Red. When mixed together, the substance has a gas reaction, a color reaction, and it became warm (temperature change). We asked questions about the experiment to navigate the 2nd recipe like: why did it turn yellow? Why is it warm? Which 2 chemicals make it change color? What is causing the heat? Based on our questions, we made a different recipe to see which caused what reaction based o our first experience. I really enjoyed this experiment and will definitely use it in my classroom!
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