This demonstration provides an aesthetic way to view convection currents in fluids. Water warmed by an electric circuit mixes with the surrounding cooler water creating turbulence effects that bend light; the resulting...
This site provides an activity on reflection using just three mirrors and duct tape. A kaleidoscope effect is produced to show multiple images of an object, and a corner mirror is created to demonstrate a reflector...
This activity from the Exploratorium provides a technique for determining the center of gravity of a long, thin object using only one?s hands. A yard stick, with a piece of clay to displace its center of mass, is p...
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