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Cold Water Candy Test
For accuracy, it's best to use both a candy thermometer and the cold water test when making candy.
Pickle Lab
Experience the thrill of pickle making, and explore how a cucumber becomes a pickle.
Kosher Dill Current
High energy prices got you down? Discover how pickles can ease your troubles.
Take an Egg for a Spin
Learn how to use physics to distinguish between raw eggs and hard-cooked eggs.
Yeast-Air Balloons
How can a microscopic organism lift several pounds of dough? Find out with this activity.
The Race of Microorganisms
Pickling is the art of manipulating the microbial garden in foods.
Fermentation and Food
The common ground between pickles, cheese, bread, wine, and many other foods.
Color Chromatography
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.
Bottle Blast-Off
Make a simple rocket and a rocket launcher, and watch a demonstration of how the finished rocket will fly.
Bee Hummer
Make a simple musical instrument that sounds like a swarm of buzzing bees when you spin it around.
Saving Seeds, Saving Culture
Saving seeds helps preserve the culture of Native American farmers in the American Southwest and northern Mexico.
Afterschool Activities: Sound Sandwich
Make a crowd-pleasing noisemaker called a sound sandwich, which you can adjust to raise or lower its pitch.
Stripped-Down Motor
Build a stripped-down motor, a simple, easy-to-make version of the electric motors found in toys, tools, and appliances.
Breaking the Mayan Code
Learn to count like the Maya by studying one of their ancient stone documents.
The Mayan Calendar Round
Did you know the Maya used two calendars? How did they know when to plan their big New Year's parties?
Seasons and Shadows
Why is your shadow longer in winter than in summer? Grab a basketball and some paperclips and find out!
Make Your Own Petroglyph
Try your hand at explaining symbols both modern and ancient, and then make your own.
Modeling the Seasons
See for yourself how the tilt of the earth's axis results in what we experience as the seasons.
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