Unit Conversion & Significant Figures: Crash Course Chemistry #2

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!) Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Like Crash Course? http://www.facebook.com/YouTubeCrashCourse Follow Crash Course! http://www.twitter.com/TheCrashCourse Follow ThoughtCafe! http://www.twitter.com/ThoughtBubbler Tumbl Crash Course. http://thecrashcourse.tumblr.com Table of Contents Unit Conversion 02:27 Scientific Notation 03:26 Sig Figs 07:40 Support CrashCourse on Subbable: http://subbable.com/crashcourse