Low-cost, teacher-tested activities for the classroom and the curious.
Science of Cooking • Explore the science behind food and cooking with recipes, activities, and Webcasts.
Using a spectroscope, you may see that what appears to be a single color of light is really a combination of colors called a spectrum.
Get a taste of how the earth's plates move.
Explore the surprising side of sound
Take a timeline tour of our past and present.
Who lives in the Arctic, and how did they get there?
Learn about the transit of Venus - what it is, what you'll see, and why it's important. View the rarest eclipse of them all - the Transit of Venus.
See a map of recent earthquakes in the United States, and learn why earthquakes happen so frequently on the West Coast.
Far north in the night sky, a faint glow appears on the horizon. Green and red flames of light stretch across the sky.
Why do road bikes have thin tires, while mountain bikes have fat tires?
Pier 15 (Embarcadero at Green Street)San Francisco, CA 94111(415) 528-4444
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