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Tiny Tubes
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In this activity, learners make "totally tubular" forms of carbon. Learners use chicken wire to build macro models of carbon nanotubes.

Electrical Fleas
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In this activity about electricity, learners explore how static electricity can make electric "fleas" jump up and down. Learners use a piece of wool cloth or fur to charge a sheet of acrylic plastic.

CD Spinner
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In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.

Your Age on Other Worlds
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Did you know that you would be a different age if you lived on Mars? It's true!

Take It From The Top: How Does This Stack Up?
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In this activity, learners explore center of gravity, or balance point, of stacked blocks.

Pupil
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In this activity, learners explore their eye pupils and how they change.

Bubble Tray
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In this activity, learners use simple materials to create giant bubbles.

Descartes' Diver
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In this activity, learners explore how changes in fluid pressure affect the buoyancy of a Cartesian diver inside a plastic soda bottle.

Cylindrical Mirror
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In this activity, learners create a cylindrical mirror to see themselves as others see them.

Make a Sun Clock: Tell Time with the Sun
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Before there were clocks, people used shadows to tell time. In this outdoor activity, learners will discover how to tell time using only a compass, a pencil, a handy printout, and a sunny day.

Seismic Slinky!
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Did you know that a Slinky makes a handy model of earthquake waves?

Water Sphere Lens
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In this activity about light and refraction, learners make a lens and magnifying glass by filling a bowl with water.

Eddy Currents
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In this activity related to magnetism and electricity, learners discover that a magnet falls more slowly through a metallic tube than it does through a nonmetallic tube.

Illuminations on Rates of Reactions
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In this activity, learners investigate the speed of chemical reactions with light sticks. Learners discover that reactions can be sped up or slowed down due to temperature changes.

Graph Dance
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In this activity, learners "dance" (move back and forth at varying speeds) by reading a graph. This is a kinesthetic way to help learners interpret and understand how motion is graphed.

Lagging Sound
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In this group activity, learners see and hear the speed of sound. A learner designated the "gonger" hits a gong, once every second, as the rest of the group watches and listens from a distance.

Feeling Pressured
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In this activity, learners (at least three) work together to explore the effects of atmospheric pressure.

Single Serving Volcanism
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In this activity, learners eat a snack and make a model of the plumbing system of a volcano.

Stride Ruler
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In this activity, learners use their feet to estimate distances. Learners calculate the distance of one step in centimeters by measuring 10 steps at a time to reduce measurement error.

Ambiguous Cube
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In this activity, learners construct a three-dimensional ambiguous cube to explore visual illusions and how our brains interpret or misinterpret information.