The answer will depend on whether you want the mass of a pencil, its weight, its length, width, volume. You may want to measure its colour!
Inches or centimeters, depending on your country.
We can easliy measure the lenght of a pencil using a ruler.
there are many units for measurement of length . but ,the length of the pencil can be measured in cm .
Scale can be used to measure pencil. it is measured in centimeter.
Decimeters might be used, but that unit is not very common. Centimeters are usually used in such cases; sometimes millimeters too.
with a ruler ...
cm
inches
7.5
Centimeters
Pencil lead is very narrow. Millimeter can be used to measure it.
you would use gallons
grams (for their mass), centimetres (for length), millimetres (for thickness/height), possibly Mohs scale for hardness.
to be honest I would use a metre ruler that really helps a lot place your metre ruler on your desk. put your pencil starting from 0. Then measure it. This is how you would measure it.
You would measure it in centimeters.
Centimeters
Centimeters
Centimeters
Millimeters.
Millimetres, centimetres or inches
Inches (or centimeters, if you're working in the metric system).
Pencil lead is very narrow. Millimeter can be used to measure it.
you would use gallons
centimeter
You could use either centimeters or millimeters, but probably centimeters.
a ruler