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Our host, Stephanie Chasteen, shares some more fun facts and activities having to do with the science of sound.

Kids can be pretty skeptical, which can help them to learn more. Children’s book author David Schwartz shares some of the letters from classes who thought they should double-check the numbers in some of his books.

Our 40th anniversary members' magazine has a cool augmented-reality cover that works with your webcam. Try it here.

Staff educator Tory Brady tells you how to make a teaching box—a valuable tool for getting yourself organized to teach a great science unit.

TI staff educator Eric Muller shows me how to carbonate my tongue. Blech!

A detailed demonstration of how to do the Color Chromatography activity, which lets you see the colors hidden in black ink. Includes a discussion of materials needed.

An introduction to how to make your own simple speaker, which transmits sound from a radio or MP3 player and demonstrates the principles of electromagnetism and vibration.

A detailed demonstration of how to make a cup speaker, including a discussion of materials needed.

The science behind the Cup Speaker activity, including how electromagnets work, and how in this activity the magnet pushes the bottom of a cup back and forth, vibrating the air and creating sound.

TI teacher coach Jennifer Paillet explains how to fit in more labs, and get students thinking creatively by using take-home labs.