Use the numbers on four cards to make up equations that equal the number on a fifth card.
Learn how to tie the six knots most useful on a voyaging canoe.
Why do teens take risks, and what do our notions of risk tell us about the dangers of growing up?
Using baking soda and vinegar, you can pop a plastic bag with the power of fizz.
See astounding musical instruments made by Bart Hopkin
You can make sentences without words!
Why do road bikes have thin tires, while mountain bikes have fat tires?
Make a spinning disc called a stroboscope, which lets you create your own animated cartoon.
Recycle a potato chip can into a simple camera.
How can a microscopic organism lift several pounds of dough? Find out with this activity.
Pier 15 (Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444
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