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Take a graduated cylinder and partly fill it with water. Read of the volume on the graduations: V1.

Gently insert the thumb tack and make sure there are no air bubbles on it. Read the new volume, V2.

The volume of the tack is V2 - V1, in the appropriate units.

The volume of a single tack is quite small so the margin of error in measurement is relatively large. Therefore, if you have a number of identical thumb tacks, you may be better of measuring the average of several tacks put into the measuring cylinder together.

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11y ago

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