With Earth Day quickly approaching, as well as many science fairs, why not challenge your class to investigate geothermal energy or other renewable energy resources? There are five driving questions explored in depth here, as well as...

Students investigate bio-fuel. In this investigative lesson, students create bio-fuel from vegetable oil waste. Students will analyze, predict, collect and synthesize data from their experiments with bio-fuel.

Students describe and compare the layers of the atmosphere. They explain how to measure the temperature of the atmosphere and discover what causes the atmosphere to heat up in some places more than in others.

Fourth graders work cooperatively to investigate the efficiency of various household appliances. They share their findings in three to five minute oral presentations.