So while we figured out what plants take in to grow in weight and/or grow new parts (air and water), we're trying to connect all the pieces together. Isolating two organisms that have a relationship, students developed models to explain what happens as one of the organisms is consumed by the other organism. We'll be putting all these organisms together somehow, and ultimately work to answer the question that started this whole phenomenon-based study, "Where does the dead raccoon disappear to?"
And we practiced using our Google Drawing skills to show what happens to dead stuff, too!