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Falling dominoes model signal transmission in a neuron.
Stain your clothes on purpose.
Now you see it; now you don’t—an object without a sharp edge can fade from your view.
Your experience of the world influences what you see.
See shadowy shapes floating inside your own eye.
Different kinds of light can be used to study life.
Why is the sky blue? That's a sticky question.
Without a boundary, it’s hard to distinguish different shades of gray.
Make a record player with a pencil, pin, and paper.
Wrap a string around your head and pluck to play music.
What happened to your whole hand?
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Attribution: Exploratorium Teacher Institute
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