Think of and briefly describe how you can measure the density of a liquid or gas.

The volume of the liquid can be measured using a measuring cylinder. To measure the mass of a liquid, it is necessary to use a balance to find the mass of an empty vessel, then pour the liquid to be measured into it and measure the mass again. The mass difference will be the mass of the liquid.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.