With my elementary knowledge of Physics, I can say that it can be proved that the weight of a substance in the moon is 1/6th of the weight of the same substance in the earth. This is because the gravitational pull of the moon is 1/6th of the gravitational pull of the earth.
But the mass of a substance remains unchanged.
Caution: Explosive. Handle with care.
The concerned editor may please look into this.
Knowledge is power.
For example, if you take an object of 100 kg mass the weight of this object will be
Weight on earth = Mass X Gravitational force on the earth = 100Kg X9.8 m/S2. =
980 Kg m/S2 or N.
Weight on Moon = Mass X Gravitational force on the moon = 100kg X 9.8/ 6 m/S2 =
Hope it is clear.
As opined by Umesh, I also feel these questions should be posted in Ask experts section.