In this activity, students construct their own pinhole camera to observe the behavior of light.

Ray diagrams are useful tools for determining the location of an image as produced by a concave mirror. Of all the rays which emanate from the top of the object arrow and are incident to the mirror, there are two rays whose behavior at...

Ray diagrams are useful tools for determining the location of an image as produced by a concave mirror. Of all the rays which emanate from the top of the object arrow and are incident to the mirror, there are two rays whose behavior at...

Extensive review and synopsis of a book that brings to light some information on the chemicals which have been thought for years to effect personality.

Investigate the behavior of light that is reflected off a spherical mirrored surface.

Explore the behavior of light as it reflects off a concave mirror in this optical illusion.

This article helps illustrate the behavior of electrons as waves and the uncertainty principle.

Lists and briefly describes three types of treatment for depression. Each treatment has a link to more information.

What colors do you see in a bubble? Why do you see colors in a bubble? Use this site to find out the answer to these questions with this easy experiment.

There are four factors that "Contribute to the vast majority of collisions." This detailed website discusses these: "Equipment Failure," "Roadway Design," "Poor Roadway Maintenance," and "Driver Behavior."

Fireflies can put on quite a light show! Watch a whole mangrove forest filled with fireflies lighting up and plunging into darkness over and over again in perfect synchrony. How do thousands of fireflies coordinate with each other? The...

Ants have one of the most complex social organizations in the animal kingdom; they live in structured colonies that contain different types of members who perform specific roles. Deborah M. Gordon explains the way these incredible...

This lesson introduces the concepts of longitudinal and transverse waves. Students see several demonstrations of waves and characterize them by transverse and longitudinal behavior. This lesson also introduces the Sunken Treasure theme...

Education leaders are re-examining acceptable use policies in light of the increasing use of highly mobile information technologies. While acceptable use policies were developed to manage and control behavior, a digital citizenship...