Search Results

In this activity, learners investigate the sense of hearing and plan and conduct their own experiments.

In this activity, learners explore sound by constructing an instrument toy that buzzes when you swing it.

In this activity, learners use sound to figure out, or infer, the position of objects. Learners create a maze inside a shoebox with blocks of wood.

This activity requires a Pico Cricket (tiny computer). Learners work on designing and building a sound sensor out of household materials, like plastic wrap and cardboard.

Discover how sound travels and what materials make better sound conductors. Can you hear better with your fingers in your ears? Find out with a coat hanger and some string!

What happens when two wave pulses meet in the middle? Send waves down a spring to watch them travel and interact.

In this activity, learners build their own sound machines and explore the interplay of motion and sound.

In this activity, learners simulate whale echolocation. Learners experience echolocation by wearing blindfolds, while another learner makes snapping noises in front of, behind, or to the side of them.

This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.

See and hear how sound waves travel through different types of materials. Extend the experiment online and learn how you can "see" with sound waves using ultrasound.

In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.

In this activity, learners create a straw oboe to explore sound and pitch.

In this activity, learners turn an ordinary metal coat-hanger into a (very quiet) musical instrument.

In this lab, learners experience how dolphins and other echolocating animals use their senses to locate and identify objects without using their sense of sight.

In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.

This is an online simulation of how sound changes due to environment. How does place--like a cave, a pier, or a forest--affect certain sounds?