The primary colors of pigment are cyan, magenta, and yellow, which can be mixed to make many other colors, but demonstrating this can be difficult if you want to use markers. Traditional markers ...

Make models of the earth and moon Make a model Earth by rolling out a small ball of green or blue clay. The ball should be between ½ to ¾ inches (about 1.5 to 2 cm) in diameter (click to enlarge photo ...

De-shell the eggs by placing them in a large container so that they touch as little as possible. Add vinegar to cover the eggs (see photo below), and cover the container. Allow the eggs to sit for 24 ...

A sharpened pencil, at least 6 inches (15 centimeters) long A long, straight, narrow pin—the narrower, the better A sheet of paper A vinyl record in reasonably good condition without too many ...

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 wool to give it a large electric charge, then use ...

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Make three Roto-Copters for each person. Use a marker to draw a 1-foot circle on a piece of newspaper. Put a cereal bowl in the middle of the circle. The circle is the target area and the bowl is the ...

All light is made up of waves of electromagnetic radiation. A spectroscope spreads each different wavelength to a different position within a spectrum of light. Music is digitally recorded as circular ...

Make a simple mini-motor.Give the coil a spin to start it turning. If it doesn’t keep spinning on its own, check to make sure that the coil assembly is well balanced when spinning, that the enamel has ...

At the Exploratorium, designing tools for teaching and learning is something we do every day—almost all of our exhibits are created and tested here at the museum. The digital resources we create allow ...

Download the PDF file containing the cipher wheels. Copy and cut out the two wheels. Place the smaller wheel on top of the larger wheel and rotate them so your "key letter" on the small wheel is ...

One of the most exciting exercises I ever did as a kid was to make a scale model of the Solar System. Most of the pictures in my books made the distance between planets seem small and easy to travel.