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What happens when two wave pulses meet in the middle? Send waves down a spring to watch them travel and interact.

In this activity, learners build their own sound machines and explore the interplay of motion and sound.

In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

In this activity, learners create a straw oboe to explore sound and pitch.

In this activity, learners turn an ordinary metal coat-hanger into a (very quiet) musical instrument.

In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.