Weights & Measures
- A Dictionary of Units - Centre for Innovation in Mathematics Teaching, University of Exeter
- www.ex.ac.uk/cimt/dictunit/dictunit.htm
- Metric Conversion Factors - Washington State Department of Transportation
- www.wsdot.wa.gov/metrics/factors.htm
- Mathematical Notations for Orders of Magnitude - College of Chemestery, University of California, Berkeley
- chemistry.berkeley.edu/links/weights/powers.html
- Measurement Converter - ConvertIt.com
- www.convertit.com/Go/ConvertIt/Measurement/Converter.asp
- Metric Prefixes - College of Chemestery, University of California, Berkeley
- chemistry.berkeley.edu/links/weights/metric.html
- Online Weights & Measures - Western Washington University
- lib199.lib.wwu.edu/ref/refmeasure.htm
- Periodic Table - WebElements
- www.webelements.com