Three main factors determine the wave height experienced in the ocean. Scholars use a virtual simulator to alter wind speed, fetch, and duration. Each combination creates a unique wave measured in significant height.

If you are at a sports match and the crowd starts two waves that are both headed toward you at the same time, what do you do? The simulation applies the concepts of constructive interference and destructive interference to that very...

Listen in as Mia and Sam expound on sound. It is caused by vibrations and travels in waves. It has the qualities of pitch, frequency, and volume. This hip animation displays a graph to depict the frequency and amplitude of sound waves....

Does the depth of a pond matter to the waves created when rain is falling? Many people assume the answer is no, but interestingly, it does matter. Pupils explore this concept and other variables related to wave behavior through a...

How can a pan flute sound one note while we hear a chord? The simulation explores sound waves, vibrations, and harmonics at the molecular level. Scholars control the pipe into which air is being blown, the length of the pipe, and which...

Radio waves are all around us! How do they transmit sound? Using an interactive, scholars examine how songs travel through the air. The resource explains the process from the radio station, to signal towers, to the radio unit. A look at...

What determines which ball rolls the fastest — the weight, the radius, the material, or something else? Scholars select two balls to race down the inclined plane, determining their material and radius. As they race, the simulation graphs...

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...

In this online interactive history worksheet, students respond to 10 short answer and essay questions about the accomplishments of Max Plank. Students may check some of their answers on the interactive worksheet.

For this marine science worksheet, students study online reports and data on sonar effects on marine animals. They complete 7 short answer questions that follow.

A clear (as these things go) presentation of the calculation of relativistic momentum. Given with a handy calculator that even calculates the % error. The site goes on to Momentum of a Photon, and to Relativistic Energy in Terms of...

Great animations showing how sound is produced.

Several visualizations that help students understand the basic properties of semiconductors. Students can turn a silicon crystal into an insulator or a conductor, investigate the probability waves of an electron, and make a depletion...

Simulations that show the concepts of probability distribution and the behavior of electrons that will help students understanding of quantum mechanics. Students will learn about electrons movement when they are in an excited state. At...