Scientific Measurement. Scientific Notation. Very often in science it is sometimes necessary to use very large or very small numbers. Writing out very long or small numbers can be quite cumbersome so an alternative called scientific notation is used.
(2.0 x 107) x (3.0 x 104) =
(2.0 x 3.0) x 10(7+4) =
6.0 x 1011
The SI system is based upon seven base units:
Additional units (derived) are formed from combinations of base units:
Prefixes are used with the names of the units to indicate what multiple of ten should be used with the units.