* Balances measure weight, not mass. A balance works by comparing the force of gravity acting on two objects. Since the Moon's gravity is one-sixth that of Earth's, an object on the Moon would weigh only one-sixth of what it weighs on Earth.
* Mass is an inherent property. Mass is the amount of matter in an object, and it remains constant regardless of location. A balance on the Moon would still compare the masses of two objects, but the weight readings would be different due to the lower gravity.
Example:
* Imagine a 10kg object on Earth. It would weigh 98 Newtons (10kg x 9.8m/s²).
* On the Moon, the same object would weigh 16.3 Newtons (10kg x 1.63m/s²).
To measure mass accurately on the Moon, you would need a different type of instrument that isn't dependent on gravity, such as a spring scale or a digital scale.