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3. Is the weight made of metal ? How is the balance held ? |
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Answer» ightly different kind of balance called a steelyard, you hang a pan from one end of a metal arm and MOVE a WEIGHT along the other end, much like a see-saw, until you FIND a balance point. ... You put the letters on the pan, move the sliding weight until the arm is HORIZONTAL, and then read the weight off the scale. |
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