One American dollar bill weighs in at about 1 gram, although it won't be exactly that.
one dollar
1 ml of water.
One US dollar weighs approximately one gram.
Is your question "what do you weigh different objects on in space...", or "why would you attempt to weigh an object in space"...?
A gram is a unit for measuring mass, not weight. Weight is measured in Newtons.
Volume does not weigh. The two are different characteristics of objects and there is no relationship between them.
Different styles of rice weigh slightly different amounts. We measured white long grain rice, and 1 gram of this rice was approximately 49 grains.
A gram of gold weighs a gram
a gram
A gram of gold weighs a gram
Gram for gram, all things that weigh one gram weigh one gram, so one gram of diamonds weighs the same as one gram of gold.