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In this activity, learners explore the invisible infrared radiation from an electric heater.

In this design challenge activity, learners build a four-stringed instrument that can play a tune.

In this activity, learners explore sound by constructing tube zithers, stringed instruments from Southeast Asia and the South Pacific.

In this four-part activity, learners explore light and sound through a variety of hands-on investigations.

String Thing is an interactive online game in which learners change a virtual string's tension, length, and gauge to create different musical pitches.