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High energy prices got you down? Discover how pickles can ease your troubles.
Learn how to use physics to distinguish between raw eggs and hard-cooked eggs.
How can a microscopic organism lift several pounds of dough? Find out with this activity.
Play with the stuff that makes dough stretchy.
Tour the Breads of the World
Take a microscopic tour of the staff of life.
Explore gluten, the substance that gives bread its structure.
Pickling is the art of manipulating the microbial garden in foods.
The common ground between pickles, cheese, bread, wine, and many other foods.
Build a simple motorized toy made of a recycled CD and a DC motor.
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.
(Embarcadero at Green Street)
San Francisco, CA 94111
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