The beaker is a very common measuring device for liquids. It is a glass cup with measurement marks along its side. It can hold a variety of chemicals and is a good general purpose tool for the lab.
The Erlenmeyer flask holds liquids. This flask has a wide base and narrows as it goes up the flask. You can measure a liquid's volume with the Erlenmeyer flask. The wide base allows you to heat a liquid in an efficient manner. The wide bottom allows more heat to transfer to the liquid.
The thermometer takes the temperature of various substances in a lab. It can take the temperature of a liquid, solid or gas. In general, the thermometer in a laboratory will read in Celsius, not in Fahrenheit.
The volumetric flask only has one measurement mark on it. This means the flask can only measure one quantity of liquid. Use the volumetric flask when you mix a solution. The solutions require a set limit of a liquid, so the volumetric flask is a good way to measure the set limits.
The viscometer measures the viscosity of a liquid. Viscosity is how resistant to flow a liquid is. For example, water is not very viscous but maple syrup is. It has a tube, which the liquid passes through at a set time and temperature. The viscometer can determine the viscocity from these measurments.
A pH meter measures how much a liquid is either an acid or a base. It has a glass electrode that measures the electrical potential of the solution. This is done when positively charged hydrogen ions pass through the glass electrode.
Chemistry labs have very sensitive scales that can measure an item down to one one-hundredth of a gram. You use this type of scale to measure very precise amounts of a solid for an experiment. At times, even a few hundredths of a gram can affect the outcome of your experiment, so the precision is critical.