How to Measure length correctly using a Centimeter Ruler

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=4-FaqT4hqMI

http://www.freesciencestuff.com • Physics and physical science topics explained in simple understandable terms.This video explains how to correctly measure length using a centimeter ruler. The rule given is that you are limited to the precision of the device plus one estimated digit that MUST be a zero or a five.

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