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In this activity, learners listen to songs and decode hidden messages based on the same principle as a modem. As a final challenge, learners decode the binary messages in a music video.

With a bit of PVC, a laser, a can/cup, and a small mirror, you can make a device that visualizes you voice or any sound transmitted into the cup/can.

In this activity (11th activity on the page), learners use pennies to test their hearing acuity.

This game depicts a woman going through her day, faced with various loud sounds.