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Chem Tutor
Chem Tutor: Conversions Using Dimensional Analysis
Practice problems with answers for converting units with dimensional analysis.
Other
Brown Math: How to Convert Units of Measurement
This site has a detailed step-by-step instruction of how to convert units of measurement. Multiplying by 1 is explained as are compound units, and finding conversion factors. The discussion is slowed down for students who may have missed...
Khan Academy
Khan Academy: Convert Units (Metrics)
Convert between metric measures of distance, volume, and mass. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Science Struck
Science Struck: Liquid Measurement Conversion
Provides tables showing how to convert liquid measurements used for cooking between different customary units and metric units. Covers teaspoons up to gallons, as well as conversions to milliliters.