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From this How To slide show, you create an Audio Tape Bow that can play distorted audio sounds by running it across a tape head.

Put on a pair of gloves and be the conductor of your invisible orchestra!

In this interactive game, learners listen to the songs of four different thrushes and then try to match each bird with its song.

This hands-on activity shows you how to make a shaker -- a small instrument with a big sound! Fill it with beads or even pennies for a cool sound.

In this activity, learners imitate the way vocal cords work by building a model from a plastic cup, rubber band, and a straw.

What's a Pickle-Oh? Two pieces of pickle on a stick are connected to a Pico Cricket (micro controller). When you slide the pickles apart the note changes.

The Sacred Cenote at Chichén Itzá is a sink hole, or well, containing groundwater. In this activity, learners create their own cenote using chalk, limestone, acids, and rain water.

In this interactive game, learners will test their memory of animal and insect sounds. Flip over cards, listen to the sound, and try to find the ones that match.

In this interactive game, learners compare their music-listening skills with that of a three-month-old baby.

In this activity, learners will investigate the sounds of the heart.

DNA is the thread of life. Encoded in its genetic sequence is the information that makes each of us unique.

Make two firefly lanterns, then program them to blink to one another and change colors.

By building a model of a lung and diaphragm, learners discover the function of various parts of the body's respiratory system.

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?

This is a hands-on activity that uses bread and household materials to grow mold. Learners collect dust from a room, wipe it on food, and contain it. One to seven days later, mold has grown.

Learners will determine their respiratory rate and explore the factors that affect breathing rate by filling out and using the Respiratory Chart provided in the lesson.

This activity requires a Pico Cricket (tiny computer).

Learners will build a homemade pump using a balloon, a mason jar, and some straws.

A magic lantern is a light that projects an image onto a screen.

In this activity, learners act out the flow of blood in the human body! A great way to get learners up and moving while learning about the circulatory system.