Scales & Balances
Differences between a scale and balance: A scale measures weight or mass of an object. A balance compares a sample weight to a standard reference weight using a horizontal lever. Balances are also different in that a balance measures mass (or more specifically gravitational mass), whereas a scale measures weight. Originally balances were equal-arm balances where a weight was put on one side and a product was put on the other side. There was a comparison of mass between the two. Today, many balances are used as scales to measure the weight of a product. In short, a balance as a scale with a higher resolution.