Need some activities to go along with your unit? A collection of hands-on activities from PBS offers opportunities to add to your electricity, sound, and force units. The electricity activities revolve around building a...

How many of your pupils play an instrument? A musical science lesson will help all of them understand how string instruments work. Young scientists construct a string-and-pulley system to test frequency and pitch. The lesson...

Although their name makes them sound dangerous or toxic, carboxylic acids are found throughout nature in things such as citric acid, vinegar, and even in your DNA. Through detailed readings, discussions, and answering questions...

Information about the interference of sound and its causes. Well-illustrated and good explanations of the concepts; part of a large hyper-textbook on various physics concepts.

Pitch is the ear's response to frequency, and here you can get a better understanding of pitch, its measurement and the perception of pitch.

This site's entry is a discussion of diffraction and its application to acoustics and acoustical design. Exceptional illustrations and great discussion throughout.

A discussion of refraction and its application to sound waves. Using analogies, graphics and real-life applications, this page and those that accompany it explain why and when sound waves bend.

This is a glossary of terms and definitions used in Chapter 17: Physics of Hearing from the AP Physics online text.

Online physics lab experiment in which students use resonating waves inside of a closed-end air column to determine the speed of sound. The form allows students to check their answers and receive immediate feedback.

This hypertext physics course tutorial on nonfocusing surfaces relates various design principles to good auditorium design. Illustrated.

A tutorial from a hypertext physics course book that discusses reverberation. Illustrated.

Sound engineering technicians have opportunities to work in many venues, from radio stations to Broadway shows. Find out about the education needed for this career and read about the life of a sound technician who freelances for live...

Informative article on the human ear. Describes the parts and function of the ear. Explains how the ear functions when listening to music.

[Free Registration/Login may be required to access all resource tools.] This guide gives a detailed overview of mechanical waves and the characteristics of waves. Covers wave behavior, including types of interference, resonance, and the...

A brief explanation of what ultrasonic sound is and the devices that produce ultrasonic sound can be found here at the Georgia State University. Scroll down the page to read how ultrasonic sound is important to bats and towards the...

The Nobel Foundation provides a biography of Bragg. This site focuses primarily on his activities and accomplishments as a scientist.

A good description and function of the auditory nerve. Diagrams, explanations.

Two wave graphs depicting a sine wave and relating the various characteristics (wavelength, amplitude, frequency, and period) of a wave to each other. The site includes an interactive JavaScript form in which the visitor enters one...

Explains what happens to a wave when it hits a fixed end or a free end.

Illustrated examples of the Inverse Square Law with interactive opportunities to practice the problems.

This competent site provides general information about amphibians and then focuses on the amphibians found in southeastern Michigan. Information, pictures, sound clips, and classification groupings are provided.

This concise Grace's Warbler site provides clear facts about the physical characteristics, range, conservation status and more. Listen to the sounds of this bird species on this site as well.

This site provides a biography of James T. Russell, inventor of the compact disk, and the basic ideas behind the technology.

At this site from the Nobel e-Museum, you can read about the scientific work of Lord Rayleigh (1842-1919 CE). This article includes information on his education and experiments with light and sound waves.