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Showing results 21 to 36 of 36
Yogurt Cup Speakers
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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.
Simple Spinner
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In this activity, learners create a tiny electric, motorized dancer. Learners use the interactions of magnetism and electric current to make a wire spin, while displaying the Lorentz Force in action.
Cup Draw (Low Tech)
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In this activity, learners construct drawing machines using a cup, some markers, and a battery pack. The markers act as "legs" for the machine, making a drawing that records as it moves.
Bright Lights
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In this activity about electricity, learners imagine that they are out in the wilderness and it is getting dark. Their task is to use the materials supplied to build a simple flashlight.
AM in the PM
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In this activity, learners will listen to as many radio stations as possible to discover that AM radio signals can travel many hundreds of miles at night.
Penny Battery
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In this activity, learners light an LED with five cents. Learners use two different metals and some sour, salty water to create a cheap battery.
Cable Car
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In this activity, learners string a line across the room and build cable cars that can move from on end to the other.
Wire Maze
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Learners create an electrical-circuit maze out of wire, then try to pass a paperclip through the maze without touching the wire.
Make a Speaker
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In this activity, learners explore how an electromagnet works by making a simple one. Using this knowledge, learners design a diagram to make a working speaker using household materials.
The Power of Graphene
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This lesson focuses on graphene and its electrical properties and applications.
Hand Biometrics Technology
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In this activity, learners explore how engineers incorporate biometric technologies into products as well as the challenges of engineers who must weigh privacy, security and other issues when designin
Keep Out!
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In this technology activity, learners build an "alarming" doormat to keep siblings out of their rooms. Use this activity to teach learners about circuits, switches, and sensors.
Kick Stick Challenge
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In this design challenge activity, learners investigate series circuits and motors to build a hand-held "kick stick." Their goal is create a battery-operated device that sends a Ping-Pong ball across
Motorized Car
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In this design challenge activity, learners build a car that uses a battery-operated motor to "drive" at least ten feet.
Telephone Talk
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In this math activity, learners find patterns in telephone numbers.
Jitterbugs
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In this activity, learners construct bug models that "jitter" all over the table with just a battery, motor, and counterweight.