Measuring cylinders and measuring cups are tools for measuring the volume of liquids

Caution:

(1) Do not use a measuring cylinder to prepare a solution or perform a chemical reaction.

(2) Do not heat or fill with hot solutions to avoid blowing up.

(3) When measuring liquids should be at room temperature.

(4) when reading, the line of sight should be tangent to the lowest point of the liquid concave liquid surface hand level.

(5) measuring the known volume of liquid, you should choose a slightly larger than the known volume of the measuring cylinder, otherwise it will cause too much error. Such as measuring 15mL of liquid, should be selected for the capacity of 20mL measuring cylinder, can not choose the capacity of 50mL or 100mL measuring cylinder

Different uses

The mouth of the measuring cylinder is small, suitable for chemical experiments to measure the liquid

The mouth of the measuring cup is large, suitable for doing physical buoyancy and other experiments related to water

(such as putting a stone into the volume of the back to see the volume, speculate on the relationship between intrusion volume and buoyancy, etc., to put into a measuring cylinder such a thin mouth is simply impossible, right)