Laralee and I teach a weekly science class for second-graders, and a few weeks ago we put together a lesson about chemistry– specifically, how mixing different things together has some pretty interesting results. The highlight of the lesson was undoubtably when we mixed polyvinyl alcohol (PVA) with borax solution to make green slime.
We had a bit left over after class, so at home we mixed up a big batch and had some fun with it. Mmm, slime…