With a scale. Mass equals weight.
It would be better to measure in grams.
Kilogram is the Standard Measure used for measuring mass as used by the SI standard of measure. A kilogram is 1,000 grams just as a kilometer is 1,000 meters. you also can measure for instance a bag of rice.
The official SI unit for mass is the kilogram. Smaller and larger units are used, such as the ton (= 1000 kilogram), the gram (= 1/1000 kilogram), the milligram (= 1/1000 gram = 1/1,000,000 kilogram), the microgram, etc.
Neither of those units will produce a very convenient number. But of the two, the kilogram is the better choice.
I will measure a book with grams
Which unit of measure would you use to measure the mass of a grape? Write gram or kilogram
you would use a kilogram
A kilogram is a measure of mass therefore a kilogram of lead and a kilogram of feathers have the same mass: one kilogram. They would, however, have different volumes and densities.
Potatoes are sold by the kilogram.
it would be a gram and if you didn't know a kilogram is equal to 1,000 grams
Kilogram is a measure of weight - so you would use it to weight something. You would probably use it for objects that are large enough to make using grams unnecessary.
You would weigh an apple in grams, not kilograms.
use gram, since kilogram is for larger items