Efficiency equals money where homes are concerned. A comparative lesson asks learners to measure heat output of incandescent and compact fluorescent light bulbs. They follow their investigation with calculating the cost of using the two...

Need a bright idea for an engaging lab? Watch your class light up as they explore the difference in efficiency between incandescent and LED bulbs! The resource makes use of simple materials and encourages learners to infer what's...

Careful, that light bulb is hot! Compare heat and light energy using a simple light bulb. The exercise addresses energy conservation and presents actual calculations to determine the most cost-effective light bulb.

How do lighting types affect energy efficiency? Explore different types of lighting and the energy they use. Pupils learn about types of lights and calculate the energy used during a typical school year. They discover that being...

How much energy does it take to light a room? Class members calculate the total wattage it takes to light the classroom. Through calculations, responsible scientists determine the cost of energy for the year, then figure out...

In this second of three lessons on power plants, future engineers find out how we generate electricity and how coal-powered plants operate. They work in small groups to make electromagnet generators to light LED bulbs. A set of...