sound
Resources

PhET: Sound Waves
This simulation lets you see sound waves. Adjust the frequency or volume and you can see and hear how the wave changes. Move the listener around and hear what she hears.

PhET: Waves Intro
Make waves with a dripping faucet, audio speaker, or laser! Adjust frequency and amplitude, and observe the effects. Hear the sound produced by the speaker, and discover what determines the color of light.

TED-Ed: Physical Science Lessons
TED-Ed celebrates the ideas of teachers and students around the world. Discover hundreds of animated lessons, create customized lessons, and share your big ideas.

The Good and the Beautiful Wonders of Energy
The full-color course book guides the parent through each lesson in the Wonders of Energy science course. Hands-on activities, engaging videos, vocabulary words, beautiful illustrations and images, along with engaging information is found throughout the course. Once you gather any simple lesson supplies, the lessons ar