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A simple chemistry experiment—adding baking soda to vinegar—seems to challenge the law of conservation of mass.
A round bowl of water can act as both a magnifier and a lens.
When you spin a tank of water on a lazy Susan, the surface of the water forms a curve called a parabola.
Kazoos and drums are membranophones—instruments that produce sound from a vibrating stretched membrane. Here, a water bottle and a paper tube make a membranophone that sounds like a saxophone crossed with a clarinet.
A simple stack of wood blocks demonstrates that an object at rest will remain at rest unless a force causes it to move.
Determine the field diameter of a compound microscope.
Observing the effects of the earth’s magnetic field on magnets is similar to some of the earliest experiments conducted on magnets.
A series of slits moving rapidly past your eye allows you to see images in short bursts. Such rapid but fragmented views of moving objects can make the objects appear to jerk along, change speed, or even move backward.
Self-rolling pet toys can wiggle around, pushing on objects a lot like air molecules do, modeling many of the behaviors of the molecules in gases.
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Attribution: Exploratorium Teacher Institute