This story lab aligns to an investigations students do with enzymes where they put hydrogen peroxide on liver and observe bubbles produced from the reaction with catalase.

This investigation has several versions for different levels of biology (regular track, intro, and AP) though the story lab was intended for the intro track students who do “Investigation: How Do Enzymes Work?“

If students are unable to do the lab in class, they can complete this worksheet as an alternative. Obviously, the lab experience is preferred, but there are some cases, such as chronic absenteeism or students who are home-schooled, who do not have access to the lab.