GPR can detect underground features such as abandoned mines or hazardous waste tanks. This is a commercial site for a company that uses this technology, but it offers pictures and information on what's possible.

Explains the Uncertainty Principle, wave-particle duality, what the electron cloud model is, and how it came about as a result of the Schrodinger equation for Hydrogen.

This page will teach you everything you wanted to know about temperature. Learn what temperature is, how to convert it, and how to stay safe in the heat.

[Free Registration/Login Required] How does sound travel and what parts of the ear detect sound best? Using multiple websites, students discover animals that make the loudest sounds, which tapped glass will create the highest pitch, what...

Echolocation is the ability to orient by transmitting sound and receiving echoes from objects in the environment. As a result of a Marco-Polo type activity and subsequent lesson, students learn basic concepts of echolocation. They use...

The biography is brief but covers the poet's life and themes. What makes the site valuable is its links to other Smith sites, including one RealAudio site that features the reading of her poem "Not Waving but Drowning."

Students use a table-top-sized tsunami generator to observe the formation and devastation of a tsunami. They see how a tsunami moves across the ocean and what happens when it reaches the continental shelf. Students make villages of model...