The kilogram.
The SI unit for mass is the kilogram (kg)
Metric ruler
Grams.
Kilogram
The gram.
Not sure what you mean with "light build". The SI (metric) unit for mass is the kilogram. For small objects, smaller units such as grams and milligrams can be used; for larger objects, the ton (= 1000 kilograms) is also used.
Pounds.
Mass is measured in kilograms. For larger objects, tonnes are sometimes used. 1 ton = 1000 kg.
I would use grams.
The metric unit for measuring human weight is actually the Newton (N). Newton's are a measure of force and weight is the product of the acceleration of gravity and an objects mass. The metric unit for measuring human mass is the kilogram (kg).
Mass can be measured in two ways. It can be measure in the unit of gram (g) specially for small objects and the unit of kilogram (kg) for larger objects.
Mass can be measured in two ways. It can be measure in the unit of gram (g) specially for small objects and the unit of kilogram (kg) for larger objects.