gram
the gram
One unit won't work for all of them. Coins and letters are small enough to be measured in grams. Bowling balls and encyclopedias are measured in pounds, and tractors in tons.
Grams
An appropriate metric unit of mass for a pencil would be grams.
The appropriate unit for mass of a grain of rice is milligrams (mg).
The international (SI) unit for mass is the kilogram.
The standard unit to measure mass is kilograms.
The appropriate base unit for measuring the mass of a lab table is the kilogram (kg). The unit commonly used for smaller masses like lab tables is the gram (g).
grams
The appropriate metric unit is a kilogram.
Im pretty sure kilograms is appropriate
A gram.