The document provides information about the metric system of measurement including: - The metric system is used by scientists worldwide and is easier than other systems because it is based on multiples of ten. - The basic metric units are meters for length, liters for volume, and grams for mass. Prefixes are used for larger or smaller units. - Conversions within the metric system are done by moving the decimal place in the number the same number of spaces as moving between prefixes on a chart. - Conversions between metric and English units use a conversion factor written as a fraction, with the starting and ending units in the denominator and numerator respectively.