Mon, Oct 13 2025 10:00 am–5:00 pm (Open for Indigenous Peoples' Day) ...

Build a paper-pencil-pin phonograph. In this classic activity, make a record player out of simple materials and listen to your favorite vinyl LP—no outlet required. Starting in one corner, roll the ...

What else can I do nearby? The Ferry Building features a wealth of shopping and dining choices as well as a farmers’ market several days a week. (You can also catch a ferry to many points in the Bay ...

Substitution ciphers and decoder rings We use substitution ciphers all the time. (Actually, substitution ciphers could properly be called codes in most cases.) Morse code, shorthand, semaphore, and ...

Store up an electric charge, then make sparks. Tired of electrostatic experiments that just won’t work? This experiment will produce a spark that you can feel, see, and hear. Rub a foam plate with ...

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Here’s a cow’s eye from the meat company. The white part is the sclera, the outer covering of the eyeball. The blue is the cornea, which starts out clear but becomes cloudy after death. Step 2: ...

Middle Ground, allows people to drop their guard for a bit, enjoy the presence of others, and learn something new. Fifteen interactive exhibits, a coffee cart, and chairs and tables create a space for ...

The white stuff we know as sugar is sucrose, a molecule composed of 12 atoms of carbon, 22 atoms of hydrogen, and 11 atoms of oxygen (C12H22O11). Like all compounds made from these three elements, ...

What Is a Solar Eclipse?

"writing in science is not only for communicating with others; it is also a tool for learning that supports scientists and students alike in clarifying thinking, synthesizing ideas, and coming to ...

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