How far would you have to travel so that the light of the full sun would provide "daylight" no brighter than twilight on Earth? This project describes a method to verify the inverse square law: how light, sound, electrical signals, and...

This guide focuses on four physical science topics that fascinate children and scientists alike. They are motion, magnets, sound, and light. With your guidance and support, these topics provide children with many opportunities to explore...

Here is an introduction to the concept of waves and wavelike motion people experience anywhere and everywhere.

Strike a key on the piano, and you hear the string vibrating. Just about any object vibrates when it's knocked, but how much and how fast? This project helps you find out. You'll build a simple light-sensing circuit for measuring the...

Resource focuses on the relationship between the frequency, wavelength and speed of light. Has a link to an interactive activity relating frequency, wavelength, and energy.

Take a one-minute quick tour through the history of theater. View a theatrical performance and be a theater critic. Visit the theater and learn about makeup, sound, lighting, costumes and visit the scene shop to learn about scenery...

An interactive resource on diffraction, interference and superposition with descriptions, animations, and questions.

All waves will reflect and refract in the right circumstances. The reflection and refraction of light explain how people see images, color and even optical illusions. This tutorial discusses each concept and presents an experiment to try...

Young scholars will use a variety of objects to participate in a partner activity and communicate using light and sound waves. Resources include a video, pictures and videos of the lesson in action, and examples of student work.

The marine environment is unique and requires technologies that can use sound to gather information since there is little light underwater. In this activity, the students will be shown benthic habitat images produced by GIS. These images...

This challenge is to build a dance pad that sounds a buzzer or flashes a light when you dance on it.

This lesson will discuss the differences between constructive and destructive wave interference. It is 1 of 2 in the series titled "Wave Interference."

If you're lucky enough to live in a place that gets snow in winter, you know that the feel of the snow can vary a lot. Sometimes it can be light and fluffy, and other times heavy and wet. This project shows you how to use data from daily...

With the help of some economics metaphors, Habitat Network delves into the scary-sounding "ecological trap" and helps bring it to light.

Light, bright, and cheerful, "The Four Seasons" by Antonio Vivaldi is some of the most familiar of all early 18th century music, featured in numerous films and television commercials. But what is its significance, and why does it sound...