Everyone's favorite part of the chemistry unit is Slime Week. This week, we made a new slime in middle school every day.
We started out with a super absorbent polymer called sodium polyacrylate. It can absorb up to 300 times its own weight in water!
On day 2 of Slime Week, we demonstrated a chemical reaction and the formation of a polymer with the classic borax and glue recipe, but we added shaving cream to make if fluffy and fragrant.
Next was our only edible slime--instant pudding! The chemical reaction that allows instant pudding to thicken is similar to the reaction that makes cement harden.
We ended Slime Week with Oobleck, the classic corn starch and water slime. It is a non-newtonian fluid, which means that sometimes it acts like a liquid, and sometimes it acts like a solid, depending on how you handle it. The students kept testing this slime in creative ways to see what it could do.