This document describes various lab tools used in science experiments and their purposes. It lists tools such as microscopes, thermometers, graduated cylinders, compasses, stopwatches, goggles, test tubes, beakers, measuring tapes, digital balances, funnels, droppers, test tube brushes, test tube racks, test tube holders, spatulas, conical flasks, and hand lenses. It then provides examples of how to use these tools to measure a friend's height, amount of water in a cup, number of drops of water, water temperature, pencil case weight, and time to complete the measurements.