Microorganisms play a vital role in the decomposition process. Students will be able to differentiate between the kinds of material that nature recycles and those it does not.
Decomposition occurs everywhere.
If everything existed forever, we would be buried in our waste. Display a piece of glass, paper, metal, plastic, and food. Conduct the following experiment to determine whether their predictions were correct. Dig enough soil from a garden or vacant lot to fill five containers. Fill five of the containers half fullwith soil, and the other five half full with sterile potting mix.