We were able to perform an interesting experiment today with baking soda, phenol red, and calcium chloride (Ca Cl). It was such an exciting and engaging way to investigate chemical reactions. We were able to investigate temperature change (the mixture's temperature rose to 144 degrees!), color change (white and red materials turned into a vibrant yellow), and gas creation (the ziplog bag expanded). By changing the variables and trying different combinations, we were able to understand why these changes occurred. The chemical reactions book we read prior to the experiment was also interesting and a nice text to aid us in our investigation.
No comments:
Post a Comment