Presentations about water. What is water Chemical properties of water

Clean water. Determination of water purity. Reservoirs. Spring. Oceans. The ocean is a continuous water shell of the Earth that has a common salt composition. Polar ice and glaciers. A glacier is an accumulation of ice of atmospheric origin on the earth's surface. Seas. Rivers. Lakes. Conclusion. Keep your water clean! - Pure water.ppt

3rd class Water

Lesson on the world around us (3rd grade). "Water". Guess the riddle. It lives in seas and rivers, but often flies across the sky. Look! This is how astronauts see the Earth from space. The seas, oceans, and rivers of our planet are depicted in blue. Is there a lot of water on Earth? Water occupies 3/4 of the surface of the globe. Water is everywhere: in the air, on the ground, underground. Photos of water from space. Lake Baikal. Strait of Gibraltar. Barents Sea. What works do not mention water? A.S. Pushkin “The Tale of the Fisherman and the Fish.” V.F. Odoevsky "Moroz Ivanovich". G. Tukay “Water”. A.S. Pushkin “The Tale of Tsar Saltan.” - Grade 3 Water.pptx

Water 3rd class

3rd grade UMK "Harmony". The world around us. Guess what substance we are talking about: Transformations of water. Water is the source of life on earth. Evaporation of water. Freezing of water. Condition of the water. Connect the names of the processes with arrows. Turning water into ice. Conversion of steam into water. Melting ice. Conversion of water into steam. Steam condensation. Converting ice into water. - Water grade 3.ppt

Water

Make friends with water. Is it possible to live without water? Target. Mystery. Water is necessary for all living organisms: plants, animals and humans. Where can you find water in nature? Water is the most amazing substance on Earth. Conditions of water. Properties of water. Water is a solvent. The water cycle in nature. Water is the source of life. Water is the source of purity. Water is the source of health. Distribution of water in nature. The meaning of reservoirs. Protection of water bodies. Schoolchildren can be of great help to adults in protecting water bodies. The saltiest sea. The deepest lake is Baikal. Literature. - Water.ppt

Save water grade 3

The world around us. Lesson topic: Save water! Journey into a fairy tale. "Once upon a time there was a river." The water runs and gurgles towards the sister river. Stream. The stream runs and flows, Sparkles and gurgles... Meeting the dawn, the birds circle around the willow trees. Oh, little river! Conditions of water. Liquid. Solid. Gaseous. Transparent, like glass, but you can’t put it in a window. A white canvas hung over the river, over the valley. On a hot day it can be the most desirable. Lots of people. The river watered the whole city. Years passed. The river darkened with sadness, became dirty and muddy. Nobody said: “What a clean, beautiful river!” The river is completely sick. - Save water grade 3.ppt

World of water

Mysteries of water. “Life is animated water.” Myths and reality. What did the ancient Romans call the god of water? A mythical humanoid creature, predominantly female. Which mythical hero blocked the river. Who and when first established the composition of water, both by analysis and synthesis. The mythical master of the waters who commands the mermaids. World of water. How much of the Earth's surface is covered with water. How much water is in the Earth's atmosphere in the form of clouds? Name eight names of water accepted in meteorology. Which waterfall is considered the most powerful in the world. Water and living organisms. Why do they say: “Water off a duck’s back.” - World of Water.ppt

“Water” the world around us 3rd grade

Save water. Riddles. I am a cloud and a fog, I am a stream and an ocean. Water. Water in nature. The water cycle in nature. Fill out the table. Solid. Liquid. Gaseous. Main pollutants of water bodies. Pollution of water bodies is dangerous. - “Water” environment, grade 3.pptx

Facts about water

Water is the basis of life. Miraculous transformations will occur with water. In 1 cubic cm of such water contains 1.5 g of protein and other substances. The need for water comes second after oxygen. 10 interesting facts about water. If we think logically, then, of course, it’s cold. However, there is so-called super cooling of water. - Facts about water.pptx

Water on Earth

Water is life

Water is life. The water in the house was turned off. Show the importance of water. Substance in the form of a clear liquid. I am both a cloud and a fog. All waters, like lands, are beautiful. Water in human life. Water content in the human body. How much water does a person need? How to avoid dehydration. Water in the life of animals. Water in plant life. Water can be a source of trouble. When there is too much water. When there is too little water. There is a lot or little water on Earth. - Water is life.pptx

Water Sorceress

The sorceress is water. You can't carry it in your hands. What is water needed for? Everyone needs water. Our planet. Where can we find water? The earth is like dough. Conditions of water. They fly without wings. The bridge across the river is ready. Who lives in the water? What grows in water. A droplet's journey through the seasons. - Water Sorceress.pptx

Features of water

Water, water all around. Stranger. What is water? What mom can't live without. Rain. So that there is no trouble. Water. Memory of water. What is the significance of water? What role does water play in our daily life? Introduce students to the properties of water. Work in groups. Assignment for practitioners. Assignment for theorists. Assignment for researchers. Assignment for ecologists. Human. Water is important to us. Water is one of the unique and valuable resources. Developing children's interest in learning. - Features of water.pptx

How to save water

Let's save water on the planet. 2013 has been declared the year of environmental protection. Environmental problems on Earth. Environmental problems. Ocean pollution. Water consumption per day. Let's do the math. Let's conduct an experiment. Legend. People. What can I do to save nature? Let's save our planet. The world around us. - How to save water.pptx

Waters of the globe

Solve the puzzle. The amount of water on Earth. The amount of water in the human body. The role of water in plant life. Clue. To grow 1 kg of vegetables, 300 liters of water are needed. The role of water in the life of animals. A well-fed dog can live 100 days without food. Water is needed for nutrition and cooling by all plants, animals, and people. Answer the questions. Three states of water. Can steam become a liquid again? Carry out the experiments and fill in the table. Description of the experience. Property of water. Take two glasses. Take sugar and salt. Take glasses of water, milk and tomato juice. Save water. Various toxic substances enter rivers and lakes. - Waters of the globe.ppt

Water is the basis of life

Topic: “Water is the basis of life on Earth.” Water is the basis of life on Earth. You are life itself. You are the greatest wealth in the world. A. de Saint-Exupéry. Water reserves on earth. Land? surfaces. Water? surfaces. Physical properties of water. Chemical properties of water. Depending on their solubility in water, substances are classified as soluble and insoluble. What factors does solubility depend on? The nature of the reacting substances, temperature, pressure. The water cycle in nature. What is the source of natural water pollution? Water pollution? Phytoplankton? ? Zooplankton? Small fish? Predatory fish? Walruses. - Water is the basis of life.ppt

Living water in nature

Water in nature. Human life is connected with water. What is water needed for? This is interesting. Types of precipitation. Determination of precipitation. Practical work. The purification is called filtration. The water is clear. Expands and contracts. The water turned into steam. The water became hard. Transformations of water. Water cycle. The water cycle in nature. How much water is needed? Water protection. Properties of water. The meaning of water in nature. The beauty of water. When the snow falls. Snowflakes. Club of the curious. Test. What substance does water belong to? Save water. Water is life. - Living water in nature.ppt

Environment Water

Water. Solve the puzzle. Test yourself! Reservoirs. Fog. Snow. Ice. Clouds. Rain. Hail. Steam. Dew. Frost. What condition is the water in? Who needs water and for what? Where is water used in the house? What does the gnome ecologist warn about? Can you guess from which bodies of water the droplets in the cloud collected? Compose and explain proverbs and sayings. Solve the crossword puzzle by solving the riddles. They drink me, they pour me out, everyone needs me. Who am I? They often ask me, they wait for me, and as soon as I appear, they will start hiding. 4. It runs in the summer and stands in the winter. 5. It neither burns in fire nor sinks in water. I look like a pea, where I pass there is a commotion. - The world around us Water.ppsx

Mineral salts

Research work mineral water. Water. The water cycle in nature." I learned that there is mineral water. I decided to find out what kind of water is called mineral water. Basic ways of learning. Observation and reasoning, conducting experiments. My main goals. Description of work. I conducted an experiment: my dad and I bought a bottle of mineral water at the store. The water has evaporated, leaving salt on the lid. Mineral water. In some layers of the earth there are various mineral salts. good for people's health. Sea water. Swimming in sea water is very beneficial for health. Human health. When we are nervous, we are drawn to sweets, but in vain - we need to drink water. - Mineral salts.ppt

The role of water

Water. Water tap. Does water take up? surface of the globe. People have long chosen a place near the water, settling along the banks of rivers and lakes, where there was plenty to drink. Jellyfish. The human body is 2/3 “filled with water.” For example, in the body of a person weighing 70 kg, water is 49 kg. Water under a microscope. Properties of Water. -Transparent. -Colorless. -No smell. -Solvent. -When heated, it expands. When cooled, it contracts. -Fluidity. -Can be cleaned using a filter (filtration). Sources of water pollution. Factory wastewater. Oil spills. Garbage from ships. 1 liter of wastewater renders 100 liters of clean water unusable. - The role of water.ppt

Water and its sources

Mineral water

Mineral water and human health. Water. Water reserves of the Earth. Only fresh water is suitable for drinking. Steam. Impact on human health. Is mineral water different from tap water? Water from a tap. Description of work. Presence of salt. Mineral water. Tap water. Factories. Sea water. Human health. Mineral composition. Correct selection of mineral water. Natural solution. - Mineral water.ppsx

Work of water in nature

Water in nature. In what forms does water occur? Water. Water content in nature. Water in the human body. The water cycle in nature. Construction. Hydroelectric power station. Water consumption. Water consumption. - The work of water in nature.ppt

Water and its role in nature

What happened to the flower? Water and its role in nature. Part of the earth's surface. Suddenly all the water on Earth disappeared. Where is water found on Earth? We are 70% water. Food and drinks. Guess the riddle. Three states of water. Water on Earth is constantly changing its state. Water appears from a stream. The seas replenish the ocean. Clouds. Under what conditions does water change its state? Properties of water. The water has no odor. Remember the taste of water. Put some salt in a glass. Can dissolve some substances. Test yourself. - Water and its role in nature.ppt

Water and man

Water and man. The amount of water in the human body. Our body is 70% water. Metabolism without water is not possible. A person's loss of about 10% - 20% of water leads to death. Typically a person consumes 2.5 – 4 liters per day. Hygiene is important when using water. Untreated water can cause cholera, dysentery, typhoid fever, and paratyphoid fever. Over the course of 70 years of life, a person eats and drinks more than 50 tons of water! Now decide whether you should drink water or not. - Water and man.pptx

Experiments with water

Water is a symbol of life. The importance of water for the human body. Health-saving technologies. Experimentation activity. Experiments with water in young and middle ages. Experiments with water at older ages. Experiments with water in the preparatory group. Approximate complex thematic planning. Younger age. Middle age. Older age. Preparatory age. Snowman coloring. Coloring the inhabitants of the seas. Experiment “Water Filtration”. Visiting a droplet. Inhabitants of the seas and oceans. Interiors of an environmental laboratory. - Experiments with water.ppt

Project water

“Water you have no sound, no color, no smell. You are impossible to describe. They enjoy you without knowing what you are. It cannot be said that you are necessary for life: you are life itself...” A. Saint-Exupery. Creative name: Epiphany water. Author: physics teacher of Municipal Educational Institution “Lyceum No. 8”, Tynda Bortikova G.I. . Main question: Why is water called Epiphany water? Study topic questions: What is the importance of water in human life? What properties does water have? In what states of aggregation can water exist? What properties does water have in solid, liquid, and gaseous states? What is melting called? evaporation? boiling? - Project Water.ppt

Water project

An amazing substance - water. Creative name. Water, water... There is water all around... Fundamental question: Problematic question: Can water be our friend? Project typology: Information. Category of students: 3rd grade. Subject: The world around us. Duration: Medium term. Project goals. Annotation. This project is aimed at 3rd grade elementary school students. Author O. T. Poglazova). Particular issues and research topics. Project stages. Composition of the educational complex. - Water project.ppt

Save water

When heating water. The floor in the classroom was washed. Save water! Can't wash or drink without water! A leaf cannot bloom without water! Lesson objectives: To grow 1 kg of potatoes you need 30 buckets of water. An elephant needs 90 liters of water per day. Without water, factories cannot operate. Ice of Antarctica. Icebergs. Conclusion - the causes of water pollution are: Consequences of pollution of seas and rivers. How to protect water from pollution. 1. Construction of treatment facilities. 2. Construction of enterprises that do not have waste water. Test yourself. What kind of water do people need? People need clean fresh water. - Save water.ppt

Lesson Water cycle in nature

Water in nature. Lesson-presentation on the subject “The World Around Us.” Lesson content. The importance of water for the life of all life on Earth. The water cycle in nature. Three states of water. Save water. Lesson objectives. To form in children an idea of ​​the water cycle as the most important phenomenon in nature. To develop knowledge about the ecological integrity of nature. Content. People, plants, animals need water. And without water it will not live even a few days. Animal trails in the forest lead to ponds. Poplar drinks 2 thousand buckets of water a year. A sunflower drinks 20 buckets of water over the summer. Streams, rivers, lakes, seas, and oceans are filled with water. - Water in nature.ppt

Water is the source of life

"Water's Birthday" Christmas. The meaning of water. Water is the source of life. Water is an indispensable means of hygiene and hardening of the body. Rivers, lakes, seas, oceans, swamps, ponds decorate our Earth. Water is the main means of combating radiation pollution of the environment. Water heals. Water replenishes the lack of fluid in every cell of our body. 3% fresh water. Does salt water cover the seas and oceans? globe. The remaining reserves are concentrated in underground springs, glaciers and snow covers. Seversky Donets. Vorskla. Volga. Rivers. Game: “water is not water.” -

The meaning of water in nature

H2o. “Water stands apart in the history of our planet. All earthly matter... is permeated and embraced by it.” V. I. Vernadsky. Water in nature. The importance of water for the life of organisms. ? The earth's surface is occupied by oceans, seas, lakes, and rivers. The importance of water for living organisms. Physical properties of water. Comparison of the properties of volatile hydrogen compounds of elements of group VI of PSHE by D. I. Mendeleev. Application of water. Purification of natural water. Ecological problems of the hydrosphere. - Meaning of water.ppt

The importance of water on Earth

The importance of water on Earth. The subject of study is water. Properties of water. Water is a liquid. Transparent. Colorless. Has no smell. Water is a solvent. Water. Fresh (rivers, lakes). Bitter - salty (seas, oceans). Water occupies 2/3 of the surface of the globe. Save water! Conditions of water in nature. Is water hard? (“Zayushkina’s hut”) Ice. Experience. Steam. Conditions of water. Liquid Solid (ice) Gaseous (steam). The meaning of water. Water = life. Sea Ocean Lake River Spring Pond Puddle. Rain Snow Dew Fog. . . -

Description of the presentation by individual slides:

1 slide

Slide description:

The presentation was compiled by the teacher of the MBOU “Gymnasium No. 1” of the Kovylkinsky municipal district of the Republic of Moldova, Kostkina A.N.

2 slide

Slide description:

Her Majesty - Water A drop from a birch leaf rolled down near me, fell into a babbling stream, and it rushed off, ringing. And she dashed into Lena, sparkling, and the great water flowed. What will happen to the drop? I don't know! Where will it reach, where will it land? But all oceans are made of such small drops. And the drops crush the rocks, thundering like menacing shafts.

3 slide

Slide description:

Every person knows what water is. It is needed for cooking and other household needs, for the operation of industrial enterprises, and for growing good crops. Water has many amazing properties that make it unlike all other substances. But among them there is one most unusual thing - this is her immortality

4 slide

Slide description:

The role of water in the life of nature is also great: there is no life without water. Living organisms on our planet have adapted to all sorts of conditions: to complete darkness and enormous pressure at the bottom of the oceans, to 70-degree heat in deserts and to 70-degree cold in Siberia and Antarctica. But no living creature can do without water.

5 slide

Slide description:

6 slide

Slide description:

Without water there can be no bright flowers, no green trees, no birds singing, no golden fields of wheat.

7 slide

Slide description:

All plants and animals contain water, and our own body is 3/4 water. Did you know that when a person loses 1-1.5 liters of water (this is approximately 2% of body weight), a feeling of thirst appears. When the body loses 6-8% of moisture, a person falls into a semi-fainting state. Losing 10% of water causes hallucinations and the swallowing reflex is impaired. If the water loss exceeds 12%, the person dies.

8 slide

Slide description:

Water is the most common substance on Earth. ¾ of the surface of our planet is occupied by seas and oceans. If all the water was distributed evenly across the globe, then such a World Ocean would be up to 4 km deep, and if all the water were collected in one drop, then its diameter would be 1500 km. The main water reserves on Earth are concentrated in the seas and oceans - about 1.4 billion km. cube

Slide 9

Slide description:

Fresh water is found mainly in glaciers - more than 30 million cubic km, as well as in rivers and lakes - about 2 million cubic km; the atmosphere contains 14 thousand cubic km. water vapor. But it is constantly consumed both in life processes and in production. Year after year, more and more of it is consumed, and people talk more and more often and more alarmingly about the lack of water. We are not talking about water in general, but about fresh water, which a person cannot do without. So what are the causes of water shortage? Decreased water flow in rivers due to deforestation along the banks. Its merciless pollution. Sources of pollution: domestic, industrial and agricultural wastewater, thermal and nuclear power plants. Wastewater from industrial enterprises contains heavy metals such as mercury, lead, cadmium; once in water bodies, they cause the death of plankton and mollusks, which participate in the self-purification of water.

10 slide

Slide description:

Leaks of oil, gasoline, kerosene, and fuel oil pollute water bodies. Radioactive contamination is very dangerous. The so-called thermal pollution of water bodies has increased, which is why fish move to other water bodies. The ingress of polymer materials causes litter in the water areas of ports and the coasts of water bodies. There are cases of seals dying from suffocation with plastic bags. Widely used synthetic detergents, even in small quantities, are toxic to aquatic life. The quality of consumed water directly affects the health of humans and animals; The cleaner the water, the better the ecology and the more beautiful the native nature; What is better: spending a lot of money on water purification or trying not to pollute it; Although water, thanks to the cycle, is a constantly renewed resource, dirty and poisoned water is a mortal threat to all living things.

Nomination "Multimedia technologies in the pedagogical process in preschool educational institutions"

During preschool childhood, the child discovers the natural world. Supporting preschoolers' natural interest in all living things, the teacher leads children from getting to know nature to understanding it.

The child’s ability to explore the world around him is provided by activity, since it is an important condition and means of cognition. To be active means to be active!The more complete and varied a child’s activity is, the more significant it is for the child, the more successful his development is.

Prominent Russian psychologist S.L. Rubinstein considers observation as the result of meaningful perception, during which the development of mental activity occurs. He connects the development of various forms of perception and observation with content. The question of the content of observations is important. - what a child can and should see, what features of natural objects to notice.

Target: This presentation provides clarity - a visual display in the classroom. Introduce children to the properties of water.

Tasks: The presentation work is structured in such a way that after a conversation (with viewing slides) about the need for water for all living things, it will smoothly integrate into the topic of the lesson. The teacher, moving step by step, tells where water is found, conducts experiments, and clearly demonstrates the phenomena of inanimate nature on slides. Develops logical thinking, visual and auditory attention, creative imagination.

Efficiency: consolidates knowledge about inanimate nature, contributes to the creation of an information and communication environment, and meets modern requirements.

Practical significance:

1. A visual introduction to the need for water for humans, animals and plants.
2. Familiarization with the phenomena of inanimate nature, with the properties of water.
3. Poetic part.

Place of use of multimedia material: can be used both by teachers of preschool institutions as visual material in a lesson to familiarize themselves with the natural phenomenon - water, and by parents to organize cognitive and research activities of children at home.

Equipment: Computer, multimedia projector.

PROGRESS OF THE CLASS

Organize children's attention and create play motivation. To the sounds of “The Sound of Water,” a SCIENTIST FROM THE MAGICAL LABORATORY enters in a robe and a quadrangular academic cap.

Hello guys! I came to visit you, my name is Scientist, and today I will tell you about one of the greatest riches of our planet! But first, guess the riddle:

Introduction to the game situation, preparing children for the topic of the lesson

She is both in the lake and in the puddle
She is circling above us like a snowflake,
It boils in our kettle too,
She runs in the river, gurgles ( water).

Have you guessed what we will talk about today? We will talk about water. I want to invite you to my magical laboratory and tell you about the great miracle - water. There we will become young scientists. Let's conduct experiments to understand how unique it is. Do you know what a laboratory is? (This is the place where scientists conduct experiments and conduct experiments).

And to get there you need to answer several questions.

SLIDES No. 2,3,4,5,6,7,8.

Tell me, why does a person need water? ( A person drinks water, washes, cooks, waters gardens, gets rid of dirt with water).

But not only humans need water! ( Animals, plants, insects, birds, and fish need water. Without water, living things cannot survive).

That's right, now let's play a game.

Igra “Who needs water?”

Each child chooses a picture depicting various objects of nature (animal, plant, person - a small child, a woman, etc.) and tells why the person depicted in the picture needs water (other children can add).

Well done! Let's go to our laboratory, here you will find out what properties it has, but first let's remember the rule for handling water:

Since we are dealing with water
Let's roll up our sleeves with confidence.
Spilled water - no problem
Always have a rag at hand.

Let's stand in a circle, hold hands and close our eyes.

(CD music “Sound of the Surf” sounds).

Here we are in the water laboratory!

SLIDES No. 9, 10 (magic laboratory, globe).

It is difficult to find a place on earth where there is no water. Water is everywhere: in oceans, seas, rivers and lakes. Water is found in the earth, water is found in plants, animals, even humans. Look at our planet, this is how it looks from space. Why is there so much blue on it? (These are seas, oceans, lakes, rivers, this is all water).

That's right, now:

Have you heard about water?
They say she is everywhere!
Like an icicle freezing.
Fog creeps into the forest.
It's called a glacier in the mountains.
It curls like a silver ribbon.
We are used to the fact that water is
Our companion always!

Slides No. 11, 12, 13.

Tell me what you know about water, where it occurs naturally (in seas, oceans, rivers, lakes, swamps).

SLIDES No. 14,15,16,17.

Tell us what inanimate phenomena are associated with water. (Dew, fog, cloud, steam, rain, snow, ice, frost).

Conclusion: water is one of the most important substances for nature; it is found everywhere, even inside a living organism. Water not only gives you drink, but also feeds you; you can’t cook a single dish without water. Water generates electricity and helps transport goods. Although it seems that there is a lot of water on the planet, living organisms only need fresh water, and there is not very much of it in nature. And for this reason it must be protected.

Activate children's knowledge about water, develop children's social skills, prove the correctness of their opinions, consolidate children's knowledge about the properties of water.

SLIDE No. 18 ( Three states of water).

Let's see what state water can be in in nature.

EXPERIMENT No. 1 “WATER-LIQUID”.

Pour water from one glass to another (from smaller to larger). You see how our water flows. This means it is LIQUID and does not have its own shape.

SLIDE No. 19 (liquid water).

EXPERIMENT No. 2 “WATER IS STEAM” (The scientist brings in a thermos with hot water).

What comes out of a thermos when water boils? (Steam)

Where did the steam come from in the jar - we poured water?

Conclusion: When heated, water turned into STEAM.

SLIDE No. 20 (pairs).

EXPERIMENT No. 3 “STEAM IS WATER” (brings cold glass to the stream of steam).

Look what happened to the glass. Where did the water droplets on the glass come from? When the steam hit the cold glass, it turned into water again.

Conclusion: steam turns into WATER when cooled.

SLIDE No. 21 (steam turns into water when cooled). This is what happens in nature.

Physical education moment.

Making scientific discoveries is not an easy task, so there are rest breaks in laboratories. It would be nice for us to rest a little too. What do our young scientists think? Let's step away from our laboratory tables and go to the carpet.

(Children are located on the carpet in random order.)

While stretching our lower back, we will not rush.
Turn right, turn left, look at your neighbor.

(Turns in different directions)
To become even smarter, we will slightly twist our neck.
Once and twice, once and twice, my head began to spin.

(Rotate your head right and left)
One, two, three, four, five. We need to stretch our legs.

(Squats)
Finally, everyone knows how to always walk in place.

(Walking in place)
There are benefits from warming up! Well, it's time to sit down

Every day the sun heats the water in the seas and oceans - just as it heats up in kettles of water.

Water turns into steam. As steam, tiny, invisible droplets of moisture rise into the air. The higher the steam rises, the colder the air becomes. The steam turns back into water. The droplets all come together and form a cloud.

SLIDE No. 22 (cloud).

When there are a lot of water droplets, they become very heavy for the cloud and fall as rain on the ground.

SLIDE No. 23 (rain).

What do water droplets turn into in winter? (Into snowflakes).

EXPERIMENT No. 4 “WATER IS SOLID”. (Ice trays are brought in and each child is given an ice cube).

In winter, another amazing phenomenon occurs on the surface: the water turns into ice. Look how hard ice is, which means water can become SOLID.

SLIDES No. 24,25,26 (snowflakes, ice).

Now let’s hold it in our hands, what’s going on? From the warmth of our palms, it began to melt as if heated, and again turns into a LIQUID STATE

This is how the water repeats its path. This is called the water cycle in nature.

(Use of artistic expression as a means of consolidating acquired knowledge about the water cycle in nature).

SLIDES No. 27,28 (water cycle in nature).

Water travels in nature
It never disappears.
It will turn into snow, then into ice,
It melts and goes on a hike again.
Suddenly it soars into the sky,
It will turn into rain.
Look around
Take a closer look at nature.
You are surrounded everywhere and always
This sorceress is water.

Let's rest a little again and do some self-massage.

Clear water is flowing,
We know how to wash ourselves.
(Children rub their palm against their palm.)
Wash your nose, wash your mouth,
(rubbing the wings of the nose).
Wash your neck, wash your ears.
(Rub your earlobes with your fingers).
Afterwards we dry off.
(stroke forehead).

Well, my dears, our trials are coming to an end. Were you interested in being a scientist? (Yes). Let's summarize our acquired knowledge. Do you guys now know what types of water there are? (Liquid). And if you freeze it, what does the water turn into? (Into the ice). What about when heated? (In steam).

Reflection

Now I will award each of you with a badge that says “Young Scientist.” This means that you have learned a lot of new things, but you won’t stop there, and you will continue to learn a lot of new and interesting things about our planet called Earth. Conduct wonderful and unusual experiments.

(Put stickers in the shape of droplets on the chest of each child. Create conditions for the psychological comfort of children).

And before you leave my magical laboratory, I want to treat you to spring water.

Droplets travel not only through the air and the ground, but also go underground. There they absorb all the healing properties of the earth and come to the surface in the form of springs. This water becomes the most healing. It gives vigor and strength to all living things.

SLIDE No. 29 (springs). (Treating children with spring water)

Now let’s hold hands again, close our eyes and listen to the sound of the water, and move to our d/s. Goodbye, my young scientists, see you again!

(music “The Sound of Water”).

Presentation for class

Goals and objectives

• Develop a set of computer slides for demonstration in an 8th grade chemistry lesson
• Consider the basic physical and chemical properties of water, the composition of the water molecule
• Study additional material on the topic
• Show the importance of water in nature, for humans, the most interesting areas of application of water
• Study the material of multimedia textbooks in chemistry

The only substance in nature that exists

in three states of aggregation

liquid state

solid state

gaseous state

Each water molecule consists of

of two hydrogen atoms And one oxygen atom ,

connected by chemical bonds

Water molecule

oxygen atom

Hydrogen atoms

Physical states of water

Gaseous

• colorless, tasteless, odorless, transparent
• has weak electrical conductivity
• t boil = 100 o C, t pl = 0 o C

Salt molecule

Water molecule

1. Interaction of water with active metals

Li+H 2 O

LiOH+H 2

2NaOH +H 2

2Na+H 2 O

Sodium hydroxide

KOH + N 2

K+H 2 O

2. Interaction of water with non-metals

CO+H 2

C + H 2 O

Water gas

3. Interaction of water with basic oxides

Na 2 O +H 2 O

Sodium hydroxide

Sodium oxide

4. Interaction of water with acid oxides

H 2 CO 3

CO 2 + H 2 O

Carbonic acid

Cold air

The cloud is transferred

Crystals

ice

air current

Water drops

Warm air

Animals

Plants

People

hail

Rain

Snow

Precipitation

Soil.water bodies

Directly in the form of free liquid (various drinks or

liquid food) an adult consumes on average per day

about 1.2 liters of water (48% daily value) .

porridge contains up to 80% water, bread - about 50%, meat - 58-67%,

fish - almost 70%, in vegetables and fruits - up to 90%

Water is mainly excreted from the body through the kidneys,

on average 1.2 liters per day - or 48% of the total volume,

and also through sweating (0.85 l. - 34%).

Part of the water is removed from the body during breathing (0.32 liters per day - about 13%)

and through the intestines (0.13 l - 5%).

Your weight (kg)

Daily water requirement, l.

At low physical activity

With moderate physical activity

At high physical activity

The sci-fi future is slowly but surely making its way into our homes. And now you can easily buy yourself a watch that receives electricity for its work from ordinary water.

How does this miracle watch work? Inside is a converter that “extracts” electrons from liquid molecules, and works like a fuel cell for a watch. Water consumption is very small. It is reported that one refill of the tank will be enough for “several weeks” of uninterrupted operation.

Japanese explorer Masaru Emoto(Masaru Emoto) provides amazing evidence of the informational properties of water. During his work, he took more than 10,000 photographs, some of them published in his books “The Messages from Water” 1, 2 and “Water knows the answer.” Dr. Emoto used a Magnetic Resonance Analyzer (MRA) for several functions, including qualitative water analysis. He noticed that no two samples of water formed exactly alike crystals, and that the shape of the crystals reflects the properties of water .

Antarctic ice

Anthem of Moscow

Anthem of Russia

Water after Baptism

Water before Baptism

Spring water

Hard rock

Beethoven's music

Spring in Troparevo

References

• Guzey L.S., Surovtseva R.P., Sorokin V.V., “Chemistry-8”, M., Bustard, 2003
• Multimedia textbook "Chemistry" 8th grade, M., Prosveshchenie, 2002
• Educational collection 1C “Chemistry for everyone - XXI”, M., 2004

Slide 2

Goals and objectives

• Develop a set of computer slides for demonstration in an 8th grade chemistry lesson
• Consider the basic physical and chemical properties of water, the composition of the water molecule
• Study additional material on the topic
• Show the importance of water in nature, for humans, the most interesting areas of application of water
• Study the material of multimedia textbooks in chemistry

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