Objectives

After finishing this activity you should be able to:

1. state what each of the following prefixes used for SI units means: tera, giga, mega, kilo, milli, micro, nano and pico
2. convert between the following units of mass:
   kilogram, gram, milligram, nanogram, picogram.

Prerequisites

This is an introductory activity and there is nothing specific that you need to know.