Yale University
Yale University: General Chemistry Lab Techniques: Volumetric Pipets
A four-step tutorial shows students how to use a pipet in general chemistry lab to make "precise and accurate" volume measurements. View the full-length lesson via streaming video [9:46] or in segments.
Khan Academy
Khan Academy: Estimating Volume
In this exercise, students practice estimating volume. Students receive immediate feedback and have the opportunity to get hints, watch a tutorial video, and try questions repeatedly.