When we think of waves, we often think of the ocean or another large body of water. In this video, students learn that waves are all around us and are responsible for many of the sounds we hear and the light we see.  Real-life examples are used to explain how waves move and travel through different mediums.  The different types of waves, and the ways in which they interact with one another, are discussed.  The program also emphasizes important properties of waves, including amplitude, frequency, and wavelength.  Additional concepts and terminology: energy, transverse wave, longitudinal wave, reflection, refraction, and interference.