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Activity
It's About Time

The Doppler Effect

For Teachers 7th - 12th Standards
In 1842, Christian Doppler proposed a theory relating the change of wavelengths based on motion. Young scholars observe the Doppler Effect on a small scale in a ball, on a larger scale from a car, and on the largest scale studying the...
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Activity
Teach Engineering

Beating the Motion Sensor

For Teachers 7th - 9th Standards
I bet I can cross the room without having the lights come on. Class members set up an experiment in which they try to determine what materials will mask motion detected by a sensor. Groups predict how materials will interact with light,...
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Activity
International Technology Education Association

Singin' the Black and Blues

For Students 5th - 9th
How does the color of the sky change from blue to reds and oranges to black? An illuminating lesson explains how light travels through different mediums using the sun's light as an example. By examining diagrams and illustrations, pupils...

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