Tuesday, 16 August 2011

Video on Acids and Bases

What is the PH scale? Learn about acids and bases. Find out how they are measured and classified.

Click on the Heading to view the movie. At the end of the short movie, you can take an interactive quiz to see what you've learned.
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1 comment:

  1. nkuku madiba13 July 2012 at 16:01

    greenhouse is a serious issue,people should take care and apreciate educative presentation s like thi one. pease keep it up guyz

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