How to measure 1l of water in 5l kettles and 7l kettles

First fill the 7-liter kettle with water, then fill the 5-liter kettle. There are still 2 liters of water left. Divide it in half to get 1 liter of water.

Sheng is a Chinese character, pronounced as shēng, which is a pictogram. Original meaning: name of container, one-tenth of a bucket. There are relevant records in "Poetry·Tang Feng·Jiao Liao" and so on.

The weight of one liter of water = 0.001*1000 = 1 kilogram. Water, with the chemical formula H?O, is an inorganic substance composed of hydrogen and oxygen. It is non-toxic and drinkable. It is a colorless and odorless transparent liquid at normal temperature and pressure, and is known as the source of human life.

Water is one of the most common substances on the earth. It is an important resource for the survival of all life, including inorganic compounds and humans. It is also the most important component of living organisms.

There is a folk method that uses "liters" as the unit of measurement. In the past, people invented this method of measuring rice by volume without standard weights and measures. It is still very useful.

Many literary works have revealed that landlords used loan sharking methods to defraud farmers by means of small rises (fights) for output and big rises (fights) for income. Reflects the exploitative system of feudal society.