http://www.ck12.orgCHAPTER
3 Measurements
Chapter Outline
3.1 The International System of Units
3.2 UNITCONVERSIONS
3.3 UNCERTAINTY INMEASUREMENTS
3.4 REFERENCES
Measurements, measurements, measurements! They affect your life in many ways each and every day. When
cooking, it is very important to carefully measure each ingredient so that your recipe turns out exactly the way
you intend. We make time measurements frequently, from cooking times, to estimating travel times and deciding
how much time will be required for various tasks. The builders of your house or apartment hopefully made good
measurements of the various wooden, plastic, and metal materials that went into its construction. A chemist also must
make accurate measurements in the laboratory when conducting his or her experiments. The image above shows
some of the common glassware that a chemist frequently uses in measuring volumes of liquids. In this chapter, you
will learn about the critical skills of making, reporting, and performing calculations with measurements.
U ser:Tweenk/Wikimedia Commons.commons.wikimedia.org/wiki/File:Lab_glassware.j pg.CC BY 3. 0.