Chemistry 101 – Acid or Base

I’ve pulled another STEM activity out of my lesson plan files for you this week. This activity gives kids hands on experience in identifying acids and bases. This is my full lesson plan for this class so please excuse the treachery wording. I unfortunately don’t have access to any of the photos that go withContinue reading “Chemistry 101 – Acid or Base”

Cross Linking STEM Activity Slime

This is another one of my students favorite Chemistry classes, making slime. Cross Linking, The Science Behind  Slime  What’s the science behind the slime? The borate ions in the starch (borax powder or boric acid) mixes with the PVA (polyvinyl-acetate) glue and forms this cool stretchy substance.  This is called cross linking. The glue isContinue reading “Cross Linking STEM Activity Slime”