Your goal during this activity is to design an experiment to determine the effect of a single independent variable (either pH or temperature) on the activity of catalase enzyme. Watch the video below and explore the things you can vary, and what you can measure. Use the tools button in the upper right hand corner of the screen and the menu bar along the bottom of the video. What tools are available for you to measure with? What possible pH values can be used during the experiment? At which temperatures can the experiment be performed?.