Draw a food web. If you are on a field trip, include organisms that you see in the same area, interacting together. If in the lab, try to include organisms that you have seen or learned about. Make sure to include a primary producer, at least two levels of consumers, and a decomposer. Label which organisms are autotrophs and which are heterotrophs. Use arrows to show how energy is transferred and lost throughout this web.
What is the ultimate source of energy for your food web?
What happens to this energy as it moves through the food web? Where does it end up?