Water-saving handwritten newspaper writing materials

On World Water Day, let the water of happiness splash from the beginning, let the water of laughter splash freely, let the water of life spill gently, let the water of good luck splash down, and let the water of health splash on you. Cherish water resources and be happy forever! The following is a handwritten newspaper text about saving water, welcome to read!

Water-saving handwritten newspaper materials

Tap water reveals the composition of the journey

Teachers often tell us to save water and protect water resources. Although water is usually saved, I still don't know how tap water comes from. Why should we save water? In order to understand this, I participated in the activity of "going into the waterworks and exploring the secret of tap water".

After meeting at the gate of Xiaoshan No.3 Water Plant in the morning, we put on a uniform red vest and started our journey of revealing secrets. Teacher Crystal and the uncle of the waterworks took us into a workshop. As soon as we entered the workshop, I smelled an unpleasant smell, a bit like gasoline, and everyone covered their noses involuntarily. Then, I saw a neat row of machines. My uncle told us that when water passes through these machines, a disinfectant will be added, and after a while, some bacteria in the water will be killed.

Then, we visited various pools for purifying water. Let's go to the reactor first. The water in the reactor is extremely dirty! It looks dark with green and disgusting floating debris on it, and I almost want to vomit. Then we went to the sedimentation tank. The water seems cleaner, and there are fewer green objects that make people vomit. My uncle told us that they added a substance to the reaction tank, which could stick the dirty things together. The volume and weight of the dirty things became bigger and bigger, and they sank into the tank? . Then, water flows into the filter again. Filter? Covered with a thick layer of quartz sand, it is used to filter smaller bacteria. Next, the water flows into the clear pool again. However, in order to prevent the clean water pool from being affected by impurities in the air, the clean water pool is built underground, so we can't visit it. What a pity!

It turns out that the tap water we usually use has to go through so many processes before it can enter thousands of households. A porridge and a meal, when thinking hard; It is difficult to keep thinking about material resources. The water used at ordinary times is hard to come by. After this activity, I should cherish the necessities of daily life, which is hard-won.

What is water?

Humans have known and used water for a long time. Water is colorless, tasteless, odorless and transparent, and it is the most common liquid in nature. Ancient philosophers believed that water was the source of all things, and all things returned to water, so water, fire, air and earth have always been regarded as the four basic elements that constitute all things in the world. It was not until 1784 that cavendish, a British scientist, proved that water is not an element, but a product of the combination of two gases.

1, irreplaceable substance

Many things can be done this way or that way, and there will always be a way. For example, lighting, without electric lights, we can light candles; Without candles, we can light oil lamps; Without oil lamps, we can light the torches of Song and Ming Dynasties. There is not even a torch, so we have to wait quietly for the night to pass and the day to come. It's different for water. Without water, we can't wash our faces and brush our teeth, we can't quench our thirst, we can't see fish and shrimp on the dining table, we can't see flowers and trees, we don't know what swimming is, all our boats are scrapped, concrete can't be mixed, and high-rise buildings can't be built.

2, the blood of industry, the lifeblood of crops

Water transports nutrients for plants; Water keeps the branches and leaves of plants elegant; Water participates in photosynthesis to produce organic matter; The evaporation of water keeps plants at a stable temperature and prevents them from being burned by the sun. Plants are not only covered by water, but also crops consume water all their lives. The cooling water consumption of thermal power plants is huge, and at the same time, it also consumes some water. The flour mixing, distillation, cooking, pickling and fermentation in food factories are all inseparable from water. Soy sauce, vinegar, soda and beer are simply the embodiment of water.

Water Saving —— A Complete Collection of Water Saving Knowledge

1, what is water?

Humans have known and used water for a long time. Water is colorless, tasteless, odorless and transparent, and it is the most common liquid in nature. 1784, British scientist cavendish proved through experiments that water is not an element, but a product of the combination of two gases. 1809, the French chemist Grusack determined that 1 volume of oxygen and 2 volumes of hydrogen were hydrogenated to generate 2 volumes of water vapor. Later, scientists determined the molecular formula of water: H2O.

2. The important role of water

Without water, there is no life, no things, no human beings; Without water, there would be no industry, agriculture and modernization; Water is the lifeblood of agriculture, the lifeblood of industry, and water is closely related to cultural life. Water is the foundation of urban development and exploitation; Water is the foundation of city internationalization. In a word, there would be no human society today without water.

3. How much water is there on the earth?

The earth's total water resources reserves are 65.438+04 billion cubic meters, of which fresh water only accounts for 65.438+0/40, about 350 million cubic meters, and nearly 70% of fresh water reserves are bipolar glaciers. At present, the available freshwater resources in lakes, rivers and underground, which are most closely related to human beings, only account for 1/300 of all freshwater resources, which is about1000000000000000000000000000000000000000000000000000 cubic meters, less than one ten thousandth of the global total water storage.

4. Human water demand

An adult needs 2500 ml of water every day, which is equivalent to an ordinary thermos bottle, in order to maintain the water balance in the body and ensure normal physiological metabolism.

5. What does a ton of water do?

Can make 5 kilograms of paper; Can generate 100 degrees; Dyeable cloth 95 meters; Steelmaking can be 0. 15 tons; Can produce 0.25 tons of chemical fertilizer; It can produce 1 122 bars of soap; Can produce 100 pairs of rubber shoes; Can create the average industrial output value of 35 yuan.

6. Don't underestimate dripping water

According to the measurement, Didi can collect 3.6 kilograms of water in one hour and 2.6 tons of water in one month, which can meet the needs of one person in January. Therefore, water conservation should start from a little bit.

7. World Water Day

1993 65438+1October 18. The 47th United Nations General Assembly adopted resolution 193, and decided to designate March 22nd every year as "World Water Day" from1993. The resolution invites governments to carry out some specific publicity activities on this day according to their national conditions in order to raise public awareness.

8. China Water Week

1988 After the promulgation of the Water Law, the Ministry of Water Resources designated July 1-7 as "China Water Week" every year. Considering that the themes and contents of World Water Day and China Water Week are basically the same, 1994 changed the time of China Water Week to March 22-28 every year.

9. National Urban Water Conservation Publicity Week

In order to improve urban residents' awareness of water conservation, the Ministry of Construction designated the week of May 15 as "National Urban Water Conservation Publicity Week" from 1992. 2018 May1-17 is the 27th National Urban Water Conservation Publicity Week.

10, seven public hazards in the world

The seven major public hazards in the world are: land subsidence, air pollution, water pollution, soil pollution, noise, vibration and odor. There are two sources of water pollution: one is mainly caused by the discharge of urban industrial three wastes (waste water, waste gas and waste residue); The surface is mainly caused by the application of pesticides and fertilizers.

1 1, what is water saving?

It refers to strengthening water use management, adjusting water use structure, improving water use technology, implementing planned water use, rationally using water, putting an end to water waste, establishing a scientific water use system by using advanced science and technology, effectively utilizing water resources, protecting water resources and meeting the needs of sustainable development of urban economy and urban construction.

12, how to improve the awareness of water saving in the whole society

In order to improve the water-saving consciousness of the whole society, it is necessary to:

(1) People's governments at all levels must strengthen their leadership over water conservation and incorporate water conservation into the national economic and social development plan;

(2) Water users should strictly implement the planned water use, strictly save water, and establish the water-saving responsibility system of their own units;

(3) Water-saving departments should strengthen the management of planned water use and water conservation;

(4) Propaganda departments and news media should intensify water-saving propaganda, enhance people's awareness of cherishing, saving and protecting water resources, and form a good fashion of saving water for everyone.

13. What is the focus of water resources in China?

Experts believe that the water problem will become the most prominent problem in China's economic and social development in the next century, mainly in three aspects:

(1) The flood losses are getting more and more serious;

(2) The problem of water shortage is very prominent.

(3) The water environment is deteriorating.

14. What are the challenges of water conservancy development in China?

The challenges are: overpopulation-in order to meet the basic needs of the whole people for water, most of the water resources in China will be developed; The disharmony between grain demand and cultivated land-cultivated land reclamation and grain growth urgently need irrigation water; The rapid growth of industrial water use; Urbanization development-with the increase of urban population and the improvement of people's lives, the domestic water consumption will increase at a high speed; Environmental problems-water environment deterioration caused by water pollution, soil erosion and groundwater overexploitation; Lack of funds-in order to meet industrial and agricultural production and improve people's lives, a lot of funds are needed to build and develop water conservancy projects and improve the utilization rate of water resources.

15, an internationally recognized water shortage line.

The internationally recognized water shortage line is that the per capita water resources are less than 1700 cubic meters, less than 1000 cubic meters is facing water shortage, and less than 500 cubic meters is a serious water shortage.