The document describes an experiment conducted using a Flow Over a Notch apparatus. The objective was to investigate and understand the principles of fluid flow over a notch. The apparatus consists of a rectangular weir plate and V-notch. Flow rate is measured using a ruler and stopwatch. Questions address how to set up and use the apparatus, safety considerations, measuring flow rate and sources of error, calculating discharge coefficient, investigating effects of changes to fluid properties and flow conditions, comparing to other flow measurement methods, and potential modifications to improve accuracy and precision.