Flashlights on Earth

This three-part, hands-on investigation explores how sunlight's angle of incidence at Earth's surface impacts the amount of solar radiation received in a given area. The activity is supported by PowerPoint slides and background information.

Go To:

Environmental Literacy Framework

Notes From Our Reviewers

The CLEAN collection is hand-picked and rigorously reviewed for scientific accuracy and classroom effectiveness. Read what our review team had to say about this resource below or learn more about how CLEAN reviews teaching materials

Teaching Tips

Teaching Tips

Students should be divided into groups to build the lab materials ahead of time and then explore the inquiry.

PowerPoint slides could be shown after the experiment to clarify misunderstandings and solidify conceptual understanding of higher level content.