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What can you do with a frozen water balloon? Plenty!
Discover the secret colors hidden in black ink. With a paper towel, a black marker, and a cup of water, create a rainbow of colors while exploring capillary action and chromatography.
Make a simple rocket and a rocket launcher, and watch a demonstration of how the finished rocket will fly.
Make a simple musical instrument that sounds like a swarm of buzzing bees when you spin it around.
Saving seeds helps preserve the culture of Native American farmers in the American Southwest and northern Mexico.
Get down and dirty with the surprising science of soil.
If you're a patient gardener, you can grow your own hybrid flowers.
This is an easy grafting project for beginners.
Make a crowd-pleasing noisemaker called a sound sandwich, which you can adjust to raise or lower its pitch.
Build a stripped-down motor, a simple, easy-to-make version of the electric motors found in toys, tools, and appliances.
Does the sun rise in the east? Not exactly.
How do scientists establish the age of artifacts, rocks, and settlements?
Learn to count like the Maya by studying one of their ancient stone documents.
Did you know the Maya used two calendars? How did they know when to plan their big New Year's parties?
Why is your shadow longer in winter than in summer? Grab a basketball and some paperclips and find out!
Try your hand at explaining symbols both modern and ancient, and then make your own.
See for yourself how the tilt of the earth's axis results in what we experience as the seasons.
Stand outside on a sunny day with a watch in your hand, and you can tell which way is north.
Make a spinning disc called a stroboscope, which lets you create your own animated cartoon.
Staff member Vivian Altmann presents the "Snack" Water-Bottle Membranophone." Make some noise with simple materials.
The more astronomy changes, the more it stays the same. This series of images juxtaposes ancient and modern study of the celestial bodies.
A trash-filled median blossoms into a community oasis.
Learn how grafting, hybridizing, and transgenics have transformed cultivation.
Find out what all that fiddling around before a concert is really about.
Stepping is rhythmic movement that uses the body as an instrument.
Peter Whitehead is an instrument builder, performer, and composer.
Our reactions may be trained, but the devices that make music sound "sad" are real enough.
Most people abhor the sound of their own recorded voice. So what are these recording devices doing to our voices to make them sound so awful?
Why do I hear the bass from my neighbor's stereo, but not the treble?
Why do some songs get stuck in your head?
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