Texas State Energy Conservation Office
Investigation: Making a PV Cell
Rise and shine! Class members collaborate to construct a photovoltaic solar cell with two semiconductor layers, as guided by this fabulous lab sheet. They test its output with an ammeter or galvanometer.
Texas State Energy Conservation Office
Investigation: Building a Parabolic-Trough Collector
Amateurs of alternative energy build a mini parabolic-trough solar energy collector and use it to heat water. Temperature is recorded over a three-minute period and the data is graphed and analyzed. Note that in order to paint aquarium...
National Renewable Energy Laboratory
Biomass: Biogas Generator
It's a gas. Middle schoolers build a biogas generator following the directions in this resource. After a few days of observation, they demonstrate that the gas given off by the decomposing manure is flammable. The activity concludes as...
Curated OER
Building Your Bridge Building Basics
In this technology worksheet, students examine the basic principles of bridge building design in order to answer the nine questions with the help of the web links on page 2.