Their main objective is to individually, in groups, and with their families reduce their consumption of natural resources and calculate their reductions for many of the resources they consume and then predict yearly resource savings and monetary savings and what positive effect they will have on the environment. Their assignment is to set up a balanced ecological environment. Brain storm with your group and list the materials you thing you'll need for the balanced environment and their quantity. City water must set for 24 hours to remove the chlorine that is hazardous to life forms. Water must be at a certain temperature range.
Population densities affect the balance of the environment.
Life cycles must be understood to help calculate what and how many organisms to include in a limited environment. Adjusting the amount of light the environment gets. At the end each group must turn in a written report on all aspects of a balanced ecosystem. They must calculate the amounts of oxygen and other resources needed per unit volume in their environment based on their research. They must present a powerpoint or hyperstudio presentation to the class with each member of the group doing one part of the presentation.