Rock Tumbler Kit

~$65 typical price

A small electric tumbler with rough stones and four grades of grit for polishing rocks over several weeks.

Why it makes a great gift

A slow science project with a shiny payoff, and it turns a rock-collecting habit into something to show off.

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Teaches basic coding logic with a result a tween can watch drive across the floor.

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A good fit for a teen who watches crime shows and likes lab work.

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Gives a teen who loves robots in fiction the chance to build one that moves.

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