Quantitative Measurements in Experiments

Total time = 25 minutes

When we take quantitative measurements in chemistry, we will be using lab equipment, such as the scale or the graduated cylinder.  All of the equipment we use will be set in the Metric System -- make sure you remember how to use this measurement system.

Watch the following video and check out the website listed below.
http://www.mathsisfun.com/measure/metric-system.html





When we take measurements, we must make sure that they are both accurate and precise.  What do these terms mean?





How does this general discussion of accuracy and precision relate to using a scale or a graduated cylinder to measure chemicals in an experiment?  Watch the following video that discusses these ideas in the context of the Uncertainty of your experimental measurements.