how heat affects the rate of a reaction, how light bends, that light behaves like a wave, that energy / angular momentum is conserved, that air has weight, the Doppler effect, that like charges repel and opposite charges attract, how to move objects with static electricity, whether material A or material B is more conductive, Newton’s 2nd law (f = ma), how a Faraday cage works, how to clean a silver cup with electrochemistry, whether water conducts electricity, How a Newton's cradle works.

How would you demonstrate these phenomena? (What materials would you need? What would you do? What would you observe?)

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