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In this activity, learners explore the parts of a circuit by modeling, as a group, a “human” circuit.

Learners build a simple electromagnet, then use this electromagnet to transform a yogurt container into a working speaker. They can connect their speaker to a radio and listen as it transmits sound.

In this engineering design challenge, learners make a bubble maze that allows bubbles to move through a series of “on” and “off” switches.