All masses are measured in kilograms. For historical reasons the normal prefixes are applied to the gram, rather than the kilogram, but the base unit is the kilogram.
grams (or kilograms)
or kilometer
The is only one Metric System. That is the one you would use. The units you use to measure mass is the kilogram (Kg).
The unit of mass is the kilogram.
GRAMS (g)
Matter is defined as that which has mass and occupies space. There are procedures to measure both. Even if you can't measure the mass of an object directly (such as a gas), you can still determine it's mass by measuring the space it occupies. Pressure is one way to measure the mass of gas by the amount of space it occupies.
Mass
Probably in grams.
The is only one Metric System. That is the one you would use. The units you use to measure mass is the kilogram (Kg).
The SI unit for mass in the metric system is the kilogram.
The unit of mass is the kilogram.
sob
They would use the measurement milligrams.
yes
Measure mass and volume.
Yes you can.
GRAMS (g)
Matter is defined as that which has mass and occupies space. There are procedures to measure both. Even if you can't measure the mass of an object directly (such as a gas), you can still determine it's mass by measuring the space it occupies. Pressure is one way to measure the mass of gas by the amount of space it occupies.
A kilogram (kg) is a measure of mass in the Metric system.