Designing a Decomposition Experiment

This past week, students had been designing an experiment that tested an idea of their own dealing with decomposition of carrots. The experiment involved students creating scientific teams where each scientist had an experimental bag as well as a control. Yesterday we set up the experiment. For the next month, we will weigh the carrots each week to determine some of the factors that impact (or don't) decomposition of carrots. Some of the experiments involve: different temperatures, including worms in one bag, adding grass clippings to one bag, burying the carrot at different depths, adding lemon juice to one bag, adding soda to one bag, and more. With each team having 4 or more students, we have several trials of the same experiment and several controls as well. New tools of graduated cylinders and syringes were utilized as well as math (averaging their groups' carrot weight for both control and experimental bags).