Communication involves the visual, auditory, olfactory, and tactile senses. Scholars observe groups of animals communicating through multiple senses. They note and learn why different species use different senses depending on their...

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...

An interactive that teaches about sonar sure sounds like fun! Junior oceanographers study the uses of sonar, past and present, in an engaging interactive. The content demonstrates how sonar works, why sound waves are a great tool...

Six simple images pull your class into magnets. Most of the pictures show magnetic fields as revealed by iron filings. Concepts are explained in print along the bottom of each slide and include magnetic force, force fields, poles,...

Set to upbeat instrumental background music, eight slides present pictures of electrical wires, batteries, and appliances, Each slide is accompanied by a few sentences that introduce viewers to concepts related to current electricity....

Focus on how to conjugate Spanish verbs in the preterite. You can use this webpage to inform your own lesson on the preterite, take a day in the computer lab, or flip your classroom and have pupils examine the page for homework. There is...