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...

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...

Learn about how the Doppler effect explains the change in pitch as a sound source moves in relation to you with this activity. This activity has the students making their own Doppler ball.

The Doppler Effect is used to determine the size of the universe as well as predict the weather. Watch this video to get an idea of just what is happening when we experience this scientific phenomenon. [1 min, 03 sec]

In this tutorial, Bill Nye explains how you can use a piece of string and a noisemaker to demonstrate the doppler effect.

Try this at-home science experiment to learn about the Doppler Effect.