How Do You Read A Metric Ruler Scale?
Science students quickly discover that the metric system is, in many regards, a superior system of measurement compared to the English system that predominates in the United States. The metric system was designed as a base-10 measurement system, meaning that differences between metric units simply involve moving a decimal place. Although measurements can be taken in English units and later converted to metric units, this process is tedious, requires access to unit conversion tables and adds an unnecessary step to the measurement process. Place the ruler across an object to be measured. As an example, consider the width of a piece of regular paper. Place the ruler near the top or bottom edge to help ensure that the ruler is straight. Adjust the ruler so that the mark labeled 0 (zero) sits exactly on the left edge of the paper. All measurements with a ruler should start from zero. Note the graduations on the ruler. Most rulers feature long marks with nine shorter marks between each long
