Measuring Cylinder.
I would use centimeters or millimeters.
I would use millimeter.......Because a butterfly is so small and we can measure it's wings by using millimeters.
Gallons (standard) or liters (metric).
centimeters or millimeters
Millimeters
Millimeters!?!?
centermeters or inches or millimeters
You may use millimeters.
You would use a ruler and measure in millimeters or centimeters.
Millimeters or centimeters.
millimeters squared
inches or centimeters