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PBS
Pbs Learning Media: What Is a Wave?
This interactive activity adapted from the University of Utah's ASPIRE Lab provides an overview of the characteristics and properties of various types of waves, including light waves, sound waves, and water waves.
PBS
Pbs: Rough Science
Website companion to PBS show, "Rough Science," in which five scientists use their collective expertise to complete a series of tasks. Follow the scientists as they do things like generate electricity, make soap, make antibacterial...