Weighing scale

Scales are used to measure the weight of an item. To use a scale, the item which needs to be weighed is put on one side of the scale. Then, weight stones are put on the other side. Once the scale balances (that is the indicator between the two scales is in the middle), the correct weight is chosen.
There are also modern scales, where the item is simply put on the scale. Its weight can then be read from an electronic or analogue display. 
Weighting Scales are used to measure the weight of an item. To use a scale, the item which needs to be weighed is put on one side of the scale. Then, usually stones are put on the other side to compare the weight of the stone with the weight of the object you have chosen. If both cups are in the middle, it means that the weights of the objects are equal. If one cup is more up while the other one is down, it means that the one that is down is the heavier one. For example: If you place a small stone in one cup, and a watch in the other cup, and the cup with the watch goes down and the stone obviously goes up, it means that the watch has a greater weight than the stone.