Presentation "the importance of water in nature and human life" presentation on the world around. Importance of water in human life. Water and health. Hygienic requirements for the quality of drinking water. Lecture by prof. Kondratyuk V.A. Three states of water

This material will give children the opportunity to independently answer the following questions:
Without which there will be no life on earth?
Why doesn't water disappear?
Where is water contained, its states and conditions?
How does a person use water?

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The role of water in human life

What happened to the flower? The flower withered without water!

Our planet Earth, it consists of water by 70% Man also consists of water by 70%

Where is water found on Earth? OCEAN LAKE SEA RIVER STREAM

STATES OF WATER VAPOR - GASEOUS ICE - SOLID WATER - LIQUID

PROPERTIES OF WATER WATER HAS NO TASTE ODOR COLOR CAN DISSOLVE CERTAIN SUBSTANCES TAKE ANY SHAPE DYE IN DIFFERENT COLORS

HOW DOES MAN USE WATER? HYGIENE PROCEDURES FOOD AND BEVERAGE

Let's learn a poem Have you heard about water? They say she is everywhere. In a puddle, in the sea, in the ocean And in a faucet. How the icicle freezes. It creeps into the forest with fog, It’s called a glacier in the mountains (Crawls into our house with fog, Boils on our stove, Dissolves sugar in tea (We don’t notice it). We are used to the fact that water is always our companion! , do not get drunk, I dare to report to you: We cannot live without it.

CHECK YOURSELF: WITHOUT WHAT THERE WILL NOT BE LIFE ON EARTH? WHERE IS WATER ON EARTH? WHY DOESN'T THE WATER DISAPPEAR? WHAT STATES AND PROPERTIES OF WATER DO YOU KNOW? HOW DOES MAN USE WATER? TELL THE POEM TO YOUR PARENTS AT HOME.

THANK YOU FOR YOUR ATTENTION!

On the topic: methodological developments, presentations and notes

summary of the lesson "Water in human life"

Synopsis of an open comprehensive lesson on familiarization with the outside world for children of senior preschool age ....

Water in human life (open session)

To improve children's knowledge about the importance of water in human life: water is the source of life, it is necessary to maintain life and ensure human health; about the properties of water: transparent, without color and...

Water is life Most people in today's world don't think much about water until they have enough of it. In the West, even those who think about it usually just wonder about the quality of municipal water supplies, or perhaps see it as a product that should probably be consumed more. Most people in today's world think little about water as long as they have enough of it. In the West, even those who think about it usually just wonder about the quality of municipal water supplies, or perhaps see it as a product that should probably be consumed more. We dutifully watch as millions of dollars are spent every year to convince us to drink animal milk. And it hardly occurs to us to wonder why no one spends money on discussing plain old good water. What for? It cannot be that such a familiar thing as water has such importance. We dutifully watch as millions of dollars are spent every year to convince us to drink animal milk. And it hardly occurs to us to wonder why no one spends money on discussing plain old good water. What for? It cannot be that such a familiar thing as water has such importance.

Importance of water in human life Water benefits everything: cooking, washing, cleaning, washing and for the production of various products. Water is useful in everything: cooking, washing, cleaning, washing and for the production of various products. The role of water in maintaining health is very important, as constant dehydration of the body leads to a large number of diseases. The role of water in maintaining health is very important, as constant dehydration of the body leads to a large number of diseases. Everyone knows the meaning of water, if there is no water in our body, there will be no us. However, we still get sick. Everyone knows the meaning of water, if there is no water in our body, there will be no us. However, we still get sick.

The water cycle in nature The water cycle in nature (hydrological cycle) is the process of cyclic movement of water in the earth's biosphere. Consists of evaporation, condensation and precipitation. The water cycle in nature (hydrological cycle) is the process of cyclic movement of water in the earth's biosphere. Consists of evaporation, condensation and precipitation. The seas lose more water due to evaporation than they receive with precipitation, on land the situation is reversed. Water continuously circulates around the globe, while its total amount remains unchanged. The seas lose more water due to evaporation than they receive with precipitation, on land the situation is reversed. Water continuously circulates around the globe, while its total amount remains unchanged. On earth, water exists in three states of aggregation: liquid, solid and gaseous. Living organisms cannot exist without water. In any organism, water is the medium in which chemical reactions take place, without which living organisms cannot live. Water is the most valuable and most necessary substance for the life of living organisms. On earth, water exists in three states of aggregation: liquid, solid and gaseous. Living organisms cannot exist without water. In any organism, water is the medium in which chemical reactions take place, without which living organisms cannot live. Water is the most valuable and most necessary substance for the life of living organisms.

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The importance of water in nature and human life Prepared by the educator of the highest category Rantseva Marina Nikolaevna

Water! You have no taste, no color, no smell, you cannot be described, you enjoy you without understanding what you are. You are not only necessary for life, you are life. Antoine de Saint-Exupery

Human life has always been connected with water. Two-thirds of the Earth's surface is occupied by oceans, seas, lakes, ponds and various reservoirs. In total, there are 1.5 billion cubic kilometers of water on earth.

Russia has vast expanses of water. The territory is washed by the waters of 12 seas. The number of large and small rivers is 2.5 million, the number of lakes and ponds is about 2 million.

Water is the most common inorganic compound on earth. For example, everyone knows that water exists in nature in three states: solid, liquid and vapor. But now more than 20 states of water are distinguished, of which only 14 are water in a frozen state.

The importance of the water cycle in nature is simply enormous. It is this process that allows animals and plants to receive moisture, which is so necessary for their life and existence. Without water, plants would not be able to convert carbon dioxide into oxygen, which means that the air would be unbreathable.

Water is the most important condition for plant life. Thanks to water, vital physiological and biochemical processes take place in the plant. It is involved in the formation of organic matter during photosynthesis.

Without water, animal food cannot be digested and absorbed by the body. In addition, all other life processes of the body also cannot do without water. With its help, metabolic products are excreted from the body and body temperature is regulated.

Importance of water in human life The main consumer of water on Earth is man. It is no coincidence that all world civilizations were formed and developed exclusively near water bodies. The human body is also made up of water. At the same time, it is known that a person cannot survive without water. So, if more than 12% of water is lost, a person will not recover without the help of doctors. And having lost 20% of the water from the body, a person dies.

Importance of water in human life Water is an extremely important source of nutrition for humans. According to statistics, one person per year consumes up to 60 tons of water just for food. Water delivers oxygen and nutrients to every cell in our body. Due to the presence of water, our body can regulate body temperature.

The importance of water in human life Water also allows you to process food into energy, helps cells absorb nutrients. Water also removes waste from our body. Man everywhere uses water for his needs: for food (both the water itself and the living organisms that live in it: fish, mollusks, crustaceans, etc., algae), in agriculture, for various production, for generating electricity, for outdoor activities , hardening, improvement of physical development.

Main sources of water pollution Municipal sewage; Industrial drains; municipal waste; Industrial waste.

Water conservation Adults can and should be even better at treating wastewater; build modern treatment facilities; create water protection zones; use detergents made only from natural materials; build factories with a closed production cycle so that there is no waste at all; prevent transport pollution of water bodies, leaks, losses during loading operations, and emergency accidents; and if the accident did occur, use all possible means to eliminate it as soon as possible; to develop science so that thermal, energy and chemical pollution disappear, so that a person can find other more rational ways of using water that will not harm nature.

We have mastered the planet long ago, The new century is marching broadly. There are no white spots on the Earth, Can you erase the black ones? Thor Heyerdahl

Thank you for your attention!

On the topic: methodological developments, presentations and notes

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Presentation "The Importance of Animals in Nature and Human Life"

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Description of the presentation on individual slides:

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The purpose of my work is to study the composition, quality, value of water in nature for humans. Objectives of the work: using the scientific literature on biology and ecology, find material on the structure of water, its significance in nature and for humans, compile a table on the presence of minerals in water; using the data of the table "Mineral substances in water", the data of the medical encyclopedia, calculate the amount of these substances in water, their daily rate, find alternative sources of these minerals; conduct environmental and chemical studies of water. Methods of work: descriptive, observational, comparative, monitoring.

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THE SIGNIFICANCE OF WATER FOR HUMANS For the human body, water is the second most important substance after oxygen. Water regulates body temperature, humidifies the air during breathing, ensures the delivery of nutrients and oxygen to all cells of the body, protects and buffers vital organs, helps convert food into energy, removes toxins and waste products of vital processes. It is no coincidence that a person can live without food for more than 4 weeks, and without water - no more than 7 days. With my research, I want to prove the need to use clean water for food.

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Definition of smell. The method is based on determining the intensity of odor at temperatures of 20 and 60 degrees. 250 ml. We put each sample into the flasks at 20 degrees, closed the stopper and shook. The flasks were then opened in turn and the character and intensity of the odor were immediately determined using standard criteria.

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Determination of turbidity Turbidity of water causes solid insoluble residues suspended in water. To determine the turbidity of the water, I used samples taken from wells, because. the rest of the water samples were fairly clear. Using an analytical balance, I weighed the filters, then filtered 1 liter of water from each well through a watering can. Then she dried the filters with sediments and weighed again. The difference in the weight of the filter with sediment and a clean filter is determined by the total amount of substances undissolved in water.

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Hydrochemical research - Determination of smell. - Determination of turbidity - Biotest on onions. - Iron content in water

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BIOTEST ON ONIONS For the experiment, we placed the bulbs in water with salt, vinegar, ordinary tap water and mineral water. After 10 days, we measured the length of the root systems. From the experience on onions, I came to the conclusion that the most useful for the human body is mineral water, which meets all the requirements, including the necessary amount of minerals necessary for our body.

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Presentation on the topic:

The role of water in nature and human life

Water is the source of life Source of bright days. Look immaculate In a fast flowing stream. Everyone wants to drink You save the rivers Lakes, oceans And small ponds.

Waterfall

Where is water on earth? Water is a unique wealth of living nature. It is difficult to find a place on our planet where there would be no water.

Ocean

Sea

• Water is a liquid.
• Pure water is transparent. If we dip a spoon into a glass of water, we can easily see it. The water is colorless.
• Water has no smell.
• Many substances dissolve in water.
• Water expands when heated and contracts when cooled.
• When heated to 100 degrees, water turns into steam.

Three states of water

solid Liquid gaseous

Ice, snow, hail. Water Steam

The value of water in nature

Water on Earth is the most common substance. According to evolutionary theory, life on Earth originated in water. Water plays a vital role in nature. Water is the habitat of many plants and animals.

The water cycle in nature

The importance of the water cycle in nature is simply enormous. It is this process that allows animals and plants to receive moisture, which is so necessary for their life and existence.

Water pollution

Water pollution is the process of saturation of water bodies with harmful substances, industrial waste and household waste, as a result of which water loses most of its functions and becomes unsuitable for further consumption.

• Main sources of pollution:
• Oil refineries
• Heavy metals
• radioactive elements
• Pesticide
• Effluent from city sewers and livestock farms.
• Household waste