gator science

active adventures in lower school science

Making Chemistry Foam Gnomes, Aliens, and Monsters

on December 18, 2013

Our work in science class harnessed the winter break energy that has been taking over the building this week.  4th graders have done a number of experiments focused on different physical changes.  Today we focused on a spectacular chemical reaction in science.  We added to liquids called polyA and polyB and stirred them in a cup 100 times.   The bottom of the cup became very hot (since it was an exothermic reaction) and a foam began to rise in the cup.  We used a craft stick to help guide the foam upwards.   Students had lots of creative ways to decorate their polyurethane foam into foam gnomes, monsters, and aliens.

here is a description of the lab from the looseinthelab website

foam gnome lab

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