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Did you know that a Slinky makes a handy model of earthquake waves?

In this activity, learners use raisins and seltzer water to understand why waves don’t move objects forward. Learners conduct two simple experiments to understand the circular movement of waves.

In this design challenge activity, learners build a four-stringed instrument that can play a tune.

In this activity (Lesson 1), learners work in groups to create tide simulations.

Put a string around your head, and play it! Learn about vibration, sounds, and pitch.

In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.

This lesson (on pages 15-24 of PDF) explores how sound is caused by vibrating objects. It explains that we hear by feeling vibrations passing through the air.

In this activity, learners will discover how to find the "sweet spots" on a baseball bat. Whenever an object is struck, it vibrates in response.

In this activity, learners will explore how light can refract or break apart into different colors.

In this activity, learners build unique sound enhancing inventions with items from around the house to amplify sound from their smart phone's speakers.

In this simple activity, learners explore ocean waves. To find out if water moves forward toward the shore, learners create waves in a simulated ocean (small aquarium tank of water).