They drink me

They pour me.

Everyone needs me

Who am I?

Water is the mother of fields,

you can't live without a mother .

(Chinese proverb)

Drop by drop forms a lake

and stop dripping -

a desert is formed.

(Uzbek proverb)

• Three states of water
• Can water change from one state to another?
• Is there a lot of water on Earth?
• Water properties
• The value of water
• Should water be protected?

Three states of water.

water

liquid

hard

gaseous

organisms

reservoirs

insipid

salty

river

stream

lake

pond

channel

reservoir

swamp

ocean

sea

lake

Water is the building block of all living things.

Conclusion: water is life! You can't live without it!

Don't wash, don't get drunk

without water. Leaves won't open

without water. Bird, beast and man cannot live without water! And that's why everyone always needs water everywhere !

washes the streets

feed and drink

inhabitants of the Earth

"home" for

animals

and plants

carries

water value

produces

electricity

speak out

your opinion

We throw waste and garbage into the rivers, They say the water will carry away But water has limits to patience Look, people, go ahead!

May the rivers not die on Earth,

Let their misfortune bypass.

And will remain in them forever

Clean and tasty water!

Conclusion:

1. You can not throw garbage into water bodies.

All living things suffer from water pollution.

2. Poisoning by oil products brings great harm to water bodies.

Plants and animals die from them, plants wither on the banks.

3. Polluted water is harmful to human health.

The Law on Nature Protection prohibits the discharge of harmful waste and sewage into water bodies,

cut down forests around water bodies .

Ecological problem!

• Treatment facilities at plants and factories do not work
• Dumping of hazardous waste into water
• Dumping waste after picnics, washing cars

• We ourselves can make a significant contribution to improving the condition of water in rivers
• stop washing cars
• Stop dumping garbage and don't dump garbage in rivers
• Participate in environmental campaigns.

Man, remember forever!

The symbol of life on Earth is water!

Save it and take care

We are not alone on the planet!

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The bell rang for everyone, we begin our circle.

They drink me, they pour me. Everyone needs me, who am I?

Have you heard of water? They say she's everywhere! In a puddle, in the sea, in the ocean And in a faucet. Like an icicle freezes, It creeps into the house with fog, It boils on our stove, The steam of the kettle hisses, Dissolves sugar in tea We don’t notice it, We are used to the fact that water is always Our companion! We can't wash without it. Don't eat, don't drink! I dare to report to you - We cannot live without water.

Game: "The sea is worried ..."

Help

You guys need to unravel this mystery. And help us again, back to the sea, the rivers to get everyone.

Theme of the lesson: Save water!

Objectives: 1. the importance of water for nature; 2. Why should we conserve water?

Group work

1.Water pollution: Factories; Trash; Spill of fuel oil, oil; poisonous substances. 2. Fishing. The reasons:

Turns out the water is in danger. Why? There is less and less clean water on Earth, and the need for it is increasing. There is nothing more precious than wonderful, most ordinary pure water. “Water is more precious than gold,” said the Bedouins, who roamed the sands all their lives. “Water! Water, you have no taste, no smell, no color; you cannot be described; They enjoy you without knowing what you are! It cannot be said that you are necessary for life: you are life itself. You fill us with joy that cannot be explained by our feelings ... You are the greatest wealth in the world, ”Antoine de Saint-Exupery wrote about water. - Indeed, water is the greatest wealth, without which no person can live more than 3 - 5 days. But sometimes people forget about this wealth and squander it on trifles.

Water on Earth is both abundant and scarce. There is a lot of it in the seas and oceans, but sea salt water is unsuitable for drinking, for many technical industries and agriculture. Fresh water is much less and a third of the world's population is experiencing an acute shortage of it. The main reserves of fresh water are concentrated in the polar ice. The limited supply of fresh water is further reduced by pollution.

physical education minute

How can you people help in this situation?

Do not build factories and plants near water bodies; Do not poison water with chemicals, waste; Do not throw garbage; Do not leave dead fish and animals in the water; Install treatment facilities. How can I help you:

Summary What is the importance of water for nature? Why should we conserve water? What have you learned? Do you think we helped our animals return to the waters? Did you enjoy this activity? How? objectives of the lesson: 1. the importance of water for nature; 2. Why is it necessary to conserve water?

Thanks a lot! You helped us a lot.

On the topic: methodological developments, presentations and notes

presentation before the lesson "Water. Leadership" Grade 3

for the help of presenters, it will be better to reveal the meaning of the water, the power of the water, that the water is a retailer ....

Presentation for the research lesson "Water. Water properties. Water protection"

Presentation for the lesson - research on the new generation of the Federal State Educational Standard "Water. Water properties. Water protection" around the world Grade 3 according to the program of A.A. Pleshakov contains practical work on studying the properties of water ...

1 slide

2 slide

The lesson is designed for students in grade 3. It should form the skills of environmentally competent behavior in nature. Expands students' knowledge of the country's water resources

3 slide

Show the importance of water in our lives Convince of the need to protect water bodies and their inhabitants Develop the ability to argue, generalize one's statements Cultivate respect for nature Goals and objectives:

4 slide

Actualization of knowledge - Close your eyes and imagine what I will say ... Water. - Open your eyes and share with me what you see. What do you think we will talk about in today's lesson?

5 slide

Natural history dictation Why the coastal shallow part of the seas is the richest in living organisms. there is more light there is more heat there is more oxygen. This is the oldest, deepest lake in it there is 1/3 of the world reserve and 4/5 of the fresh water reserves of our country. Seliger Baikal Taimyr Into which sea does the Kuban River flow? Black Caspian Azov This fish is born in the river, spends its whole life in the ocean, and returns to its native river to breed, overcoming thousands of kilometers of a dangerous path. pink salmon chum salmon This is the largest rodent in our country. Renowned builder. Its huts, dams, canals are a work of art. Brutally exterminated by people for valuable fur. Protected by law. beaver muskrat otter What is ecology? this is plant science this is animal science this is environmental science

6 slide

"Treasure" at the bottom of the river Once scientists explored the bottom of the river. On a section of the bottom 5 kilometers long, they found: 14 large reinforced concrete slabs, 16 large pipes, 34 pieces of rails, 9 coils of barbed wire, 27 curved iron sheets, 43 fire extinguishers, 18 saws, 31 axes, 112 sledges, 108 kettles, kettles and pans , 36 frying pans, 27 irons, 2486 broken bottles, 814 broken glass jars, 2214 cans and many other rubbish. Draw your own conclusions from this.

7 slide

Once upon a time there was a river Once upon a time there was a river. At first, it was a small, cheerful stream that hid among tall, slender firs and white-trunked birches. And everyone said: what pure, what tasty water in this stream! Then the stream turned into a real river. The water in it did not flow so fast, but it was still clear and clean. The river loved to travel. One day she found herself in the city. Spruces and birches did not grow here, but there were huge houses in which people lived. Many people. They rejoiced at Reka and asked her to stay in the city. The river agreed, and she was chained in stone banks. Steamships and boats began to sail along it, people sunbathed on the banks. The river watered the whole city. Years passed, people got used to the River and no longer asked her for anything, but did whatever they wanted. Once a huge factory was built on its banks, from the pipes of which dirty streams flowed into the River. The River darkened from sadness, became dirty and muddy. Nobody said: "What a clean, beautiful river!" No one walked on its banks. Various unnecessary things were thrown into the River: cans, logs, cars were washed in it, clothes were washed. And none of the townspeople thought that the River was also alive. And she was very worried. "Why do people treat me so badly? After all, I gave them water, turned the turbines of power plants, gave light, protected them from the heat on hot days," she thought. Time passed. People polluted the River more and more, and she endured everything, waiting for them to finally come to their senses ... Ecological fairy tale

8 slide

Reminder Do not throw garbage and broken glass into the water. You can not leave garbage on the shore of the reservoir. You can not cut down the forest on the banks of the river. Do not wash cars and other vehicles in the pond.

9 slide

10 slide

Environmental forecasting Make an environmental forecast. All the crayfish were caught in the river. The guys who lived in the village often arranged a game; whoever finds more and throws bivalve mollusks on the shore of the lake. On the banks of the river began to cut down the forest. To save the crop from pests, people carried out intensive processing of fields with pesticides. All pike were caught in the river. A lot of toxic substances got into the river from industrial enterprises. A ship carrying oil has crashed.

11 slide

"Invisible Rescuers" Today, the inhabitants of the seas suffer from destructive pollution caused by human activity. Algae and mollusks, crustaceans and jellyfish suffer. Fish and dolphins get sick and die. One of the most dangerous pollutants is oil that enters the water in the event of a tanker accident or when it is extracted from the depths of the sea. Even the concept of “black surf”, which has now become widespread, has come into the everyday life of specialists. This “surf” brings death and devastation to the inhabitants of the sea and coast. Scientists around the world are looking for ways to deal with such pollution. Conduct experiments using living organisms to clean the sea. Oil entered the sea naturally long before man began to pollute nature. Bacteria were found in the sea, which began to use it as food ...

Aims and objectives of the lesson: Consider the importance of water in human life, assess the water resources of Russia and their distribution in time and space. Consider the importance of water in human life, assess the water resources of Russia and their distribution in time and space. To consolidate knowledge about the inland waters of Russia (concepts, types of water). To consolidate knowledge about the inland waters of Russia (concepts, types of water).

For daily needs, a person consumes liters of water, and about a cubic meter per year. m of water.

Russia is rich in water resources, but they are unevenly distributed: the northwest of the Russian Plain is a lake region, very well supplied with water, and the southeast of the Russian Plain, the Central Russian Upland, and the Urals are experiencing a lack of water. The main reserves of fresh water are concentrated in lakes, glaciers and groundwater. A person uses mainly river water, these are annually renewable water resources, which Siberia is rich in. Russia is rich in water resources, but they are unevenly distributed: the northwest of the Russian Plain is a lake region, very well supplied with water, and the southeast of the Russian Plain, the Central Russian Upland, and the Urals are experiencing a lack of water. The main reserves of fresh water are concentrated in lakes, glaciers and groundwater. A person uses mainly river water, these are annually renewable water resources, which Siberia is rich in.

Human impact on water resources, water consumption. Water use: 1. Fisheries 2. Hydropower 3. River transport 4. Bathing in the river 5. Fishing on the shore Water users pollute water, worsen its quality Water consumption: 1. Industry 2. Agriculture 3. Municipal services (water in the apartment), irrigation streets As a result, water consumption is decreasing, water quality is changing due to runoff
Water protection, recycling water supply system. How to keep water clean for us and future generations of Russians? 1. Build treatment facilities, and reconstruct many treatment facilities. 2. Improve production technology at enterprises. For example, introduce a circulating water supply system. Waste water is treated and reused at the same enterprise. 3. Saving water consumption, payment for each cubic meter according to the meter.

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Completed by a student of grade 11 b Darina Osipova Head: geography teacher Zakharycheva Valentina Petrovna

"Pollution of the oceans" 900igr.net On the topic:

Introduction At present, the problem of pollution of the aquatic environment is very relevant, because. now people are beginning to forget the well-known expression “water is life”. A person cannot live without water for more than three days, but even realizing the importance of the role of water in his life, he still continues to harm water bodies, irrevocably changing their natural regime with discharges and waste. The bulk of the water is concentrated in the oceans. Water evaporating from its surface gives life-giving moisture to natural and artificial land ecosystems. The closer an area is to the ocean, the more precipitation falls there. The land constantly returns water to the ocean, part of the water evaporates, part is collected by rivers, which receive rain and snow water. The exchange of moisture between the ocean and land requires a very large amount of energy: it takes up to 1/3 of what the Earth receives from the Sun.

The water cycle in the biosphere before the development of civilization was balanced, the ocean received as much water from the rivers as it consumed during its evaporation. If the climate did not change, then the rivers did not become shallow and the water level in the lakes did not decrease. With the development of civilization, this cycle began to be violated, as a result of irrigation of agricultural crops, evaporation from land increased. The rivers of the southern regions became shallow, pollution of the oceans and the appearance of an oil film on its surface reduced the amount of water evaporated by the ocean. All this worsens the water supply of the biosphere. Taking into account the importance that water has for human life and all life on Earth, we can say that water is one of the most precious treasures of our planet.

The Earth's Hydrosphere The hydrosphere is an aquatic environment that includes surface and groundwater. Surface water is mainly concentrated in the World Ocean, which contains about 91% of all water on Earth. The surface of the World Ocean (water area) is 361 million / km square. It is about 2.04 times the land area - an area that occupies 149 million / km square. If the water is evenly distributed, it will cover the Earth with a thickness of 3000 meters. The water in the ocean (94%) and underground is salty. The amount of fresh water is 6% of the total water on Earth, and a very small share of only 0.36% is available in places that are easily accessible for extraction.

Each inhabitant of the Earth on average consumes 650 cubic meters of water per year (1780 liters per day). However, to meet physiological needs, 2.5 liters per day is enough, i.e. about 1 cubic meter per year. A large amount of water is required for agriculture (69%) mainly for irrigation; 23% of water is consumed by industry; 6% is spent in everyday life. Taking into account the need for water for industry and agriculture, water consumption in our country is from 125 to 350 liters per day per person (St. Petersburg 450 liters, and in Moscow 380 liters). Water is not only a condition for the life of an individual organism. Without it, the existence of the biosphere, life on Earth, would not be possible, since the circulation of substances and energy in the biosphere is possible only with the participation of water. During the water cycle, 453,000 cubic meters per year evaporate from the surface of the oceans. m. of water

Pollution of the World Ocean Every year, more than 10 million tons of oil enter the World Ocean, and up to 20% of the World Ocean is already covered with an oil film. First of all, this is due to the fact that oil and gas production in the oceans and seas has become the most important component of the oil and gas complex. In 1993, 850 million tons of oil were produced in the ocean (almost 30% of world production). About 2,500 wells have been drilled in the world, of which 800 are in the USA, 540 are in Southeast Asia, 400 are in the North Sea, and 150 are in the Persian Gulf. This mass of wells has been drilled at depths of up to 900 meters. Pollution of the World Ocean by water transport occurs through two channels: firstly, sea and river vessels pollute it with waste resulting from operational activities, and, secondly, emissions in case of accidents, toxic cargoes, most of oil and oil products. The power plants of ships (mainly diesel engines) constantly pollute the atmosphere, from where toxic substances partially or almost completely enter the waters of rivers, seas and oceans.

Oil and oil products are the main pollutants of the water basin. On tankers carrying oil and its derivatives, before each next loading, as a rule, containers (tanks) are washed to remove the remnants of the previously transported cargo. Wash water, and with it the rest of the cargo, is usually dumped overboard. In addition, after the delivery of oil cargoes to the ports of destination, tankers most often go to the point of new loading without cargo. In this case, to ensure proper draft and navigation safety, the ship's tanks are filled with ballast water. This water is polluted with oil residues, and before loading oil and oil products, it is poured into the sea. Of the total cargo turnover of the world's maritime fleet, 49% will currently fall on oil and its derivatives. Every year, about 6,000 tankers of international fleets transport 3.5 billion tons of oil (2000). With the growth of oil transportation and accidents, more and more oil began to fall into the ocean. According to 1988 data, about 20 billion tons of garbage were dumped into all the seas of the world. 98,000 tons of garbage were dumped into the North Sea alone. Pollution of the oceans

A serious environmental threat to life in the oceans and, consequently, to humans is the disposal of radioactive waste (RW) on the seabed and the discharge of liquid radioactive waste (LRW) into the sea. Western countries (USA, Great Britain, France, Germany, Italy, etc.) and the USSR since 1946. began to actively use the ocean depths in order to get rid of radioactive waste. From 1966 to 1991, the USSR dumped liquid radioactive waste into the Far Eastern seas (mainly near the south-eastern part of Kamchatka and in the Sea of ​​Japan). The Northern Fleet annually dumped 10,000 cubic meters of such waste into the water. Up to 2 million seabirds and 100,000 marine animals, including up to 30,000 seals, die every year by swallowing any plastic products or getting entangled in pieces of nets and cables.

Up to 2 million seabirds and 100,000 marine animals, including up to 30,000 seals, die every year by swallowing any plastic products or getting entangled in pieces of nets and cables.

The main routes of hydrosphere pollution The main routes of hydrosphere pollution Pollution by oil and oil products Pollution by sewage Pollution by heavy metals Pollution by acid rain Radioactive pollution Thermal pollution Mechanical pollution Bacterial and biological pollution

1. Pollution by oil and oil products. It leads to the appearance of oil slicks, which impedes the processes of photosynthesis in water due to the cessation of access to sunlight, and also causes the death of plants and animals. Each ton of oil creates an oil slick on an area of ​​up to 12 square kilometers. Restoration of affected ecosystems takes 10-15 years; 2. Pollution by sewage as a result of industrial production, mineral and organic fertilizers as a result of agricultural production, as well as municipal sewage. Leads to eutrophication of water bodies - their enrichment with nutrients, leading to excessive development of algae and the death of other ecosystems of water bodies with stagnant water (lakes and ponds), and sometimes to swamping of the area; 3. Pollution with heavy metals. Violates the vital activity of aquatic organisms and humans; 4. Pollution by acid rain. Leads to acidification of water bodies and the death of ecosystems;

6. Radioactive contamination. Associated with the release of radioactive waste; 7. Thermal pollution. It is caused by the discharge of heated water from thermal power plants and nuclear power plants into water bodies. Leads to the mass development of blue-green algae, the so-called water bloom, a decrease in the amount of oxygen and negatively affects the flora and fauna of water bodies; 8. Mechanical pollution. Increases the content of mechanical impurities; 5. Bacterial and biological contamination. Associated with various pathogenic organisms, fungi and algae. The world economy discharges annually 1500 km3 of cubic wastewater of various degrees of purification, which require 50-100-fold dilution to give them natural properties and further purification in the biosphere. This does not take into account the water of agricultural production. World river flow (37.5 - 45 thousand cubic meters per year) is insufficient for the necessary dilution of wastewater. Thus, as a result of industrial activities, fresh water has ceased to be a renewable resource. Consider in turn the pollution of oceans, seas, rivers and lakes, as well as methods of wastewater treatment.

The biological factors of self-purification of the reservoir include algae, molds and yeast fungi. Representatives of the animal world can also contribute to the self-purification of water bodies from bacteria and viruses. Each mollusk filters more than 30 liters of water per day. The purity of reservoirs is unthinkable without the protection of their vegetation. Only on the basis of a deep knowledge of the ecological state of each reservoir, effective control over the development of various living organisms inhabiting it, it is possible to achieve positive results, ensure transparency and high biological productivity of rivers, lakes and reservoirs. Other factors also adversely affect the processes of self-purification of water bodies. Chemical pollution of water bodies with industrial waste and inhibits natural oxidative processes, kills microorganisms. The same applies to the discharge of thermal wastewater from thermal power plants.

A multi-stage process, sometimes stretching for a long time - self-cleaning from oil. Under natural conditions, the complex of physical processes of self-purification of water from oil consists of a number of components: evaporation; settling of lumps, especially those overloaded with sediment and dust; adhesion of lumps suspended in the water column; floating lumps forming a film with inclusions of water and air; reducing the concentration of suspended and dissolved oil due to settling, floating and mixing with clean water. The intensity of these processes depends on the properties of a particular type of oil (density, viscosity, coefficient of thermal expansion), the presence of colloids in water, suspended particles of plankton, etc., air temperature and sunlight.

Protection of the World Ocean In 1983, the International Convention for the Prevention of Pollution of the Marine Environment came into force. In 1984, the states of the Baltic basin signed the Helsinki Convention for the Protection of the Marine Environment of the Baltic Sea. It was the first international agreement at the regional level. As a result of the work carried out, the content of oil products in the open waters of the Baltic Sea has decreased by 20 times compared to 1975. In 1992, the ministers of 12 states and a representative of the European Community signed a new Convention for the Protection of the Baltic Sea Environment.

Protection of the World Ocean In 1972, the London Convention was signed, prohibiting the dumping of radioactive and toxic chemical waste on the bottom of the seas and oceans. Russia also joined this convention. Warships, in accordance with international law, do not need permission to dump. In 1993, the dumping of liquid radioactive waste into the sea was prohibited. In 1982, the III UN Conference on the Law of the Sea adopted the Convention on the Peaceful Use of the World Ocean in the Interests of All Countries and Peoples, which contains about 1,000 international legal norms governing all major issues of the use of ocean resources. Article 58 of the Constitution of the Russian Federation: Everyone is obliged to preserve nature and the environment, to treat natural resources with care.

The main water pollutants:

Lean use Waste-free production Wastewater treatment

Wastewater treatment system: Grids Sand-grease separators Primary clarifiers Aerotanks Screen out large debris Retain grease and sand Retain sediment Activated sludge oxidizes organic pollutants

Taking water samples

Settling ponds

Before being supplied to the city, the quality of water undergoes numerous checks, even its smell is evaluated.

Conclusion: Careful use of fresh water, timely and effective wastewater treatment, protection of water resources, reduce their scarcity and increase the possibility of their use.