A unit is a frequently arbitrary designation we have given to something to convey a definite magnitude of a physical quantity and every quantity can be expressed in terms of the seven base units that are contained in the international system of units. Hank thinks this is a thrilling subject, and while you may not agree, it is a subject that is very important if you want to be a scientist and communicate with accuracy and precision with other scientists. So listen up and learn something or Hank might have to kill you! (NOT REALLY!)

Watch this video in Spanish on our new Crash Course en Español channel!    • Conversión de unidades y cifras signi...  

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Table of Contents
Unit Conversion 02:27
Scientific Notation 03:26
Sig Figs 07:40

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