The unit of mass in SI is kilogram (kg).
gram
A balance.
For an ant farm, I would suggest a kilogram. For an individual ant, a milligram.
you use kilograms
A kilogram.
Weighing balance is used to measure mass. The metric unit is kilograms.
The is only one Metric System. That is the one you would use. The units you use to measure mass is the kilogram (Kg).
Mass is measured using kilograms.
Mass is measured in kilograms.
Mass is measured in kilograms.
Grams.
The kilogram.
Grams
Kilogram
Kilograms
centimeters
mg.