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Use your cell phone to explore the mini-scopic world.
A balloon acts as a lens to focus sound.
A lens creates an image that hangs in midair.
Gelatin can do much more than just wiggle and jiggle.
Test your vision—just by moving your head.
Light projected through a drop of water reveals an abundance of life.
A round bowl of water can act as both a magnifier and a lens.
Determine the field diameter of a compound microscope.
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Attribution: Exploratorium Teacher Institute
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