A supplementary Flash interactive that takes the learner inside a photovoltaic cell to see the physics behind solar panels.

Multi-day project for Grades 7-9: students work cooperatively to design a 70-square-inch solar "house" that applies principles of thermodynamics.

3-day unit for Grades 5-8:  Students apply knowledge of heat transfer to build a small passive solar structure with four walls, windows, doors, and a roof.