Why did the waves get into a fight? They were tired of each other's interference. Scholars observe the wave patterns from dripping water, sound waves, and light waves. They vary the spacing, build barriers, and increase the number...

Electricity travels at the speed of light, 186,000 miles per second. Through a simulation, classes see how the structure of energy bands in crystals of atoms determines how materials conduct electricity. Participants can change the...

Consider this online interactive activity as a way to practice the names that often accompany human anatomy, such as the crown of the head and the roof of the mouth. Learners select an anatomy word with a double meaning from a drop-down...

There is a scallop that relies on sight so much that it actually has more than 100 eyes! There are many species that rely heavily on one sense or another. An online interactive resource has youth read about several of these animals. The...

Conduct virtual experiments with water, sound, and light waves to determine the sine wave and patterns created in each.

This site from the National Aeronautics and Space Administration provides information on the subject. "An infrared camera sees heat, rather than light. Can you match up the face in the infrared image with the same face in visible light?"

Learn all about stars and the electromagnetic spectrum in this series of activities.

[Free Registration/Login Required] Change the focal point in this interactive concave lens to see how the focal length changes.After the activity, answer a challenge question to check for understanding.

[Free Registration/Login Required] Change the focal point in this interactive convex lens to see how the focal length changes. After the activity, answer a challenge question to check for understanding.

Let this classic family of monsters guide you as you learn about energy. Interactive exercises, experiments, and demonstrations help to build knowledge and raise questions.