Middle schoolers examine the role of carbon in the oceans and how phytoplankton determine the levels present. In groups, they practice measuring primary productivity using two methods. They use the internet to research the role of...

Students use cardboard and aluminum foil to construct a solar oven that concentrates enough sunlight to cook a hotdog. They review the history and use of solar energy in relation to the Olympics.

This tutorial site for NetPBL (Networked Project-Based Learning) offers guidance for developing collaborative learning.

A basic guide for ways to be more energy-efficient and to use more renewable energy sources in a building. These include methods of reducing heat or cool air loss, ways of harnessing solar energy, and using the wind for ventilation.