The role of water in nature and human life. Presentation "The role of water in human life" presentation for a lesson on the surrounding world (senior group) on the topic Apple and pear trees will die if a person does not

Slide 7

• In the spring
• In the stream
• In a puddle
• Fresh water
• In the lake
• In a swamp
• In a river

Slide 8

Salty water

• In the ocean
• In the sea

Slide 9

Slide 10

Insects

• Who needs water

Slide 11

Aquatic life

• Who needs water

Slide 12

• Who needs water

Slide 13

• Animals
• Who needs water
• Birds

Slide 14

• Properties of water
• Practical part

• Solubility
• Form
• Fluidity
• Transparency
• Results

Slide 15

Shape of water

• Water has no shape

Slide 16

Shape of water

• Water has no shape

Slide 17

Water color

• Water has no color

Slide 18

Water clarity

• The water is clear

Slide 19

Solubility in water

• Water is a good solvent

Slide 20

Solubility in water

• Water is a good solvent

Slide 21

Conditions of water

• hard
• gaseous
• liquid
• liquid

Slide 22

• Water in natural phenomena

Guess

Slide 23

• guess a riddle

It grows upside down, It grows not in summer, but in winter.

But the sun will bake her -

She will cry and die

Icicle

Slide 24

• guess a riddle

Fluffy cotton wool

Floating somewhere.

The lower the cotton wool,

The closer the rain comes

Slide 25

• guess a riddle

In a blue shirt

Runs along the bottom of a ravine

Slide 26

• guess a riddle

There's a commotion in the yard -

Peas are falling from the sky

Slide 27

• guess a riddle

No boards, no axes

The bridge across the river is ready.

The bridge is like blue glass!

Slippery, fun, light!

Slide 28

Why do things dry out?

Slide 29

Slide 30

Water cycle in nature

Slide 31

How does a person use water?

Slide 32

How water works for a person

• Power plants
• Water mills
• Cargo transportation
• Plants and factories
• Resting-place

Slide 33

Water consumption

• 1890 1 bucket

How much water did the person consume?

• 1914 7 buckets
• 2011 70 buckets

Slide 34

Let's sum it up

• Economist

Slide 35

O L C O Z O L D N V U O I

1 2 3 4 1 2 3 4 O O S A M V D U X

Crossword

P X V O D A

Slide 36

Homework

• Complete a complaint book
• Mrs. Droplet's motto
• “Saving water means saving life”
• Ms. Droplets' Complaint Book
• Task: click on the pencil

Slide 37

Slide 38

Slide 39

View all slides

Abstract

Lesson topic: “Water”.

Slide number 17.

WHERE DOES WATER COME FROM?

Water appears from a stream,
The river collects streams along the way,


The seas replenish the ocean's supply:

She's rising higher... for now
Doesn't turn into clouds.
And the clouds, flying above us,

All this is what people call:

WATER CYCLE IN NATURE.

Rain clouds have arrived;
Rain, rain, rain.
The raindrops are dancing as if alive;
Drink, rye, drink.

Drinks, drinks, drinks.
And the quiet rain, restless,
It pours, it pours, it pours.

If our hands are waxed,
If there are blots on your nose,
Who is our first friend then?
Will it remove dirt from your face and hands?

What mom can't live without
No cooking, no washing,
Without what, we will say frankly,
Should a person die?

For the rain to fall from the sky,
So that the ears of bread grow,
For ships to sail -
We cannot live without... (water).

Lesson on the surrounding world in 1st grade based on the integration of ecology, chemistry and the surrounding world.

(Program by A.A. Pleshakov “The world around us”)

Chepelevskaya Nina Stanislavovna – primary school teacher.

Lesson topic: “Water”.

Lesson duration: 45 minutes.

Goal: to summarize students’ knowledge about water, to show that water is a unique natural substance.

Lesson objectives: teach to see, compare, analyze. Expand knowledge about water and its role in human life. To cultivate a caring attitude towards water, the responsibility of every person in solving environmental problems.

Form of training organization: frontal, group, pair, individual.

Equipment: computer, multimedia console; presentation "Water". Equipment for conducting experiments: beakers of various sizes, test tube, flasks, teaspoon, funnel, filter paper.

Presentation management. From the main slide (No. 2) we use hyperlinks to go to the slides we need. Random slide transition has been cancelled. Refunds are made using the arrows. The presentation uses triggers.

Organizing time. Emotional mood of students. Motivation of students.

Primary school teacher. Today we will try to look at the obvious, but we hope that it will also seem incredible to us. What do we want to learn about today? Let's try to guess. The teacher tells the children riddles about water. You need to guess the item being described. This technique is used because guessing broadens the child’s horizons, teaches him observation skills, and focuses attention on the subject being guessed. Slide No. 3. Children read the riddle on the slide (frontal and paired form of work), consult with each other and show their readiness to answer (the children have prepared cards with droplets of water on a green and red background in advance). A red card means: I don’t know, a green card means the answer is ready.

Slide number 4. Primary school teacher. Let's think about where on Earth there is water? Children answer: in the sea, in the river, in the lake, in the spring, in the swamp, in the puddle. Together we conclude: there is a lot of water on the planet - land occupies only one third of its surface. It is surprising that the planet is called “Earth” and not “Water”. When people flew into space, they saw that our planet was blue. If you look at the globe (slide number 5), you can see that the bulk of water is concentrated in the oceans and seas. In them it is bitter and salty.

Primary school teacher. Slide number 6. What kind of water is there on earth? We answer together: salty and fresh. Let's look at the presentation slide. It turns out that almost all the water on Earth is salty, and only a small part is fresh.

Primary school teacher. Who needs water on Earth? From the main slide, go to the “Who needs water” block using the hyperlink. Slides No. 10-13. Front form of work. Children call: plants, insects, aquatic inhabitants, humans, birds, animals. We conclude: water is something that no inhabitant of planet Earth can do without.

Practical part. Chemistry teacher. What properties does water have? To answer this question it is necessary to conduct research. Slide number 14. This slide shows the properties that substances have. Let's read together: shape, fluidity, color, transparency, solubility. Let's check if water has these properties? Follow the hyperlink to slide number 15. We have to prove whether water has a shape. To understand this, we will do a simple experiment. Pour a small amount of water from a large beaker into vessels that have different shapes.

What are we seeing? What form does water take in different containers? We conclude: water has no shape, it takes the shape of the vessel into which it is poured. Slide number 16. Fluidity of water. What property do we use: pour water from one glass to another. Place a small amount of water on a glass slide and observe. Conclusion: water has the property of fluidity.

Slide number 17.

Water color. We have to make sure: does the water have color? There are three beakers on our display table. In the first - orange juice, in the second - milk, in the third - water. We observe and draw conclusions: in the 1st color it is orange, in the 2nd it is white, in the third there is no color. Water has no color, which means it is colorless. Slide number 18. Transparency. Three glasses of liquid: orange juice, milk, water. Take turns lowering a plastic spoon into each liquid. What we are seeing. In the first two glasses we do not see the part that is immersed in liquid, but in a glass of water we see the entire spoon. This means: the first two liquids are not transparent, but water is transparent, this allows us to observe an object completely immersed in a glass of liquid. Slide number 19. Solubility in water. We place different substances in three beakers: salt, sugar, chalk. Mix thoroughly. What are we seeing? Sugar and salt are highly soluble in water, but chalk does not dissolve in water. We conclude: water is a good solvent. Let's summarize. Slide number 20. On this slide there is a chest of knowledge. If we learned something new today, we can put this knowledge in our chest - it will be useful to us in later life.

Let's rest. Slide number 21. Chemistry teacher. Water is a liquid substance. Depending on the temperature, it changes its state of aggregation: when cold it turns into ice, and when heated it turns into steam. We are interested in learning about these transformations. Let's play our guessing game and find out in what states water occurs in nature. Slide number 22. Every drop is a mystery. Click the hyperlink to go to the tasks. Slides No. 23 – 27.

The water cycle in nature. Slide number 30. Children read a poem by Andrei Usachev:

WHERE DOES WATER COME FROM?

Water appears from a stream,
The river collects streams along the way,
The river runs full of water in the open space,
Until it finally flows into the sea.
The seas replenish the ocean's supply:

The moisture thickens over it like sour cream,
She's rising higher... for now
Doesn't turn into clouds.
And the clouds, flying above us,

It rains and snows.
The snow will turn into streams in the spring,
Streams will run to the nearest river...
All this is what people call:

WATER CYCLE IN NATURE.

Chemistry teacher. The sun heats the surface of our planet. As a result, a huge amount of water evaporates. Water vapor rises up from the surface of seas and oceans, rivers and soil. Water turns into steam at any time of the year, even in winter. Tiny droplets of water form clouds. The moisture accumulated in the clouds falls in the form of rain or snow and everything repeats all over again. This is called the water cycle in nature.

Physical education minute. Slide number 28. Children move little, remaining in one position for a long time. To prevent fatigue and overstrain during the educational process, it is necessary to conduct physical training sessions. Physical education in elementary school is an active recreation aimed at reducing fatigue in children, activating attention and increasing the ability to more effectively perceive material.

Rain clouds have arrived;
Rain, rain, rain.
The raindrops are dancing as if alive;
Drink, rye, drink.
And the rye, bending towards the green grass,
Drinks, drinks, drinks.
And the quiet rain, restless,
It pours, it pours, it pours.
Each line is accompanied by movements.

How water works for a person. Primary school teacher. Water plays an important role in the life of humans, plants, and animals. Why and why is water so necessary? Water is the most common liquid on Earth. A person needs a lot of water to live. Let's think about where people use water? Hyperlink to slide number 31. Let's draw conclusions together. Water helps generate electricity in power plants. Water transports goods along rivers and seas, grinds grain, and is used in factories and factories. Clean water in rivers and lakes brings a lot of joy to people on vacation - you can swim, water ski and bike, and go boating. But where does a person get water? Go to slide number 33. There is fresh, good water underground. In some places it flows to the surface - these are springs. People dig wells, drill wells, and use water supply in cities where a lot of people live. Let's think about how to save water if people need it so much. The teacher brings to mind that water must be treated with care and not wasted. In rural areas, people protect springs and cover wells to prevent dirt from getting into them. In cities, people also need to conserve water and use it sparingly. The children and the teacher discuss that water consumption has increased greatly and that our previous generations used less water than we did.

Water connoisseurs page. On slide number 34 we see an ecologist, a doctor, a poet and an economist. (Children come out wearing improvised hats with inscriptions: ecologist, economist, doctor, poet).

Ecologist: industrial enterprises consume a lot of water, and it is becoming less and less. They pollute the water, and as a result there will come a time when we will not have clean water left. In many countries, clean water is sold in stores.

Doctor: our health depends on what kind of water we drink. Drinking dirty water can make a person sick or even die. Drink only filtered water. It is better if you boil the water before drinking.

If our hands are waxed,
If there are blots on your nose,
Who is our first friend then?
Will it remove dirt from your face and hands?

What mom can't live without
No cooking, no washing,
Without what, we will say frankly,
Should a person die?

For the rain to fall from the sky,
So that the ears of bread grow,
For ships to sail -
We cannot live without... (water).

Economist: we use only clean and fresh water. Save water! Remember how little fresh water there is on Earth!

Crossword. On slide number 35 we solve the crossword puzzle. Horizontally:

As a result, we get the word water (vertical arrangement).

End of lesson. Summarizing. Water is a unique substance of nature that must be protected!

There is a small blue planet Earth in the Universe. And this planet will live as long as there is an amazing substance on it - water. Today we are convinced that water has unique properties. By changing nature, a person changes the basis of life - water, and no one can say what terrible consequences careless handling of water can lead to. Water is a unique substance of nature that must be protected! Keeping water clean means saving your life.

The waters of the oceans, seas, and rivers must be clean.

And every smart person should remember this.

Primary school teacher. What awaits you, future adult? You are an inhabitant of planet Earth! You rejoice at a ray of sun and wind, a drop of water on a flower, a snowflake on your palm, rain in the window. Remember that you must do many useful things to make life on your planet better. Study to know, study to create. Overcome the difficulties in your path and make every moment better.

Homework. Complete the “Complaint Book of Mrs. Droplet.” The complaints in it are unusual, they are in the form of drawings. Mrs. Droplet's motto: “Saving water means saving life!”

Literature and used Internet resources:

• Borovsky E.E. Water in nature. Deficiency of clean fresh water. - M: Chistye Prudy, 2009. - 32 p.
• Aksenova Z.F. Enter nature as a friend. – M: Sphere shopping center, 2008 – 128 p.
• Nikolaeva S.N. Young ecologist. – M: Mosaika-Sintez, 1999 - 224 p.
• Ananyeva E.G., Mirnova S.S. Earth. Complete encyclopedia. – M: Expo, 2008.-256 s

Description of the presentation by individual slides:

1 slide

Slide description:

2 slide

Slide description:

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

3 slide

Slide description:

THE IMPORTANCE OF WATER FOR HUMAN 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, and removes toxins and waste products from vital processes. It is no coincidence that a person can live without food for more than 4 weeks, and without water for no more than 7 days. With my research I want to prove the need to use clean water for food.

4 slide

Slide description:

Definition of smell. The method is based on determining the intensity of odor at temperatures of 20 and 60 degrees. 250 ml each. We added each sample into flasks at 20 degrees, capped it and shook it. The flasks were then opened one at a time and the character and intensity of the odor were immediately determined using standard criteria.

5 slide

Slide description:

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

6 slide

Slide description:

Hydrochemical studies - Odor determination. - Determination of turbidity - Biotest on onions. - Iron content in water

7 slide

Slide description:

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

8 slide