How Loud Is Too Loud?

A phenomenal lesson on sound is here for your third graders! In it, learners engage in hands-on activities, watch video, take part in Internet activities, and complete tasks in cooperative groups in order to explore the world of sound...

Ever wonder how loud a sound has to be to cause damage? Young scientists explore sound properties by researching decibel levels. They discuss how sound is perceived by our ears and our brains and why it can cause negative health effects...

How loud is the class's hearing threshold? Using a sound level meter, the class members observe how the loudness of sound is affected by distance. Learners continue to study decibels by seeing how different sounds compare to each other...

Add a little music to your next physics class. Pupils discuss how frequency determines pitch and take part in several activities designed to teach them more about sound, melody, resonance, and vibrations. They use materials to construct...

If a tree falls in the forest and no person is around, does it still make a sound? Students view a short video segment to determine sound and decibel levels of various objects, including the loudest and quietest possible sounds humans...

Turn it up! Sound scientists explore the decibel scale through an interactive that calculates movement up and down the scale. Part of a series of interactives that explore sounds and waves, the resource includes a help feature to support...

A video discussing the decibel scale and how it is used to figure out the loudness of a sound. Understand how the scale is a logarithmic scale. [10:29]

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.

Using a karaoke machine, a guitar, and other devices, learners explore the way sound waves travel. Using this hands on approach, learners can get a better understanding of wavelength, frequency, and more.

Fourth graders engage in a study of sound pollution at their school. After a class discussion on what noise pollution is, learners are asked if they think there are areas of their school or community where noise pollution is a problem....