Where do snow and ice come from? Presentation for a lesson on the world around (middle group) on the topic. Presentation for the work "Where does snow and ice come from" Presentation on the topic where does snow come from

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The world around us Where do snow and ice come from

Winter in the forest. Frost. I.I. Shishkin Winter

All winter lies quietly, and in the spring it will run away. Not a gem, but glitters.

Gray geese flew, They dropped white fluff. Grandpa is building a bridge without an axe.

Where do snow and ice come from?

Guys! Let's study the properties of snow and ice.

Snow is white. Ice is colorless.

Snow is opaque. Ice is transparent.

The snow is loose. Ice is fragile.

When warm, snow and ice melt. Water is formed.

Snow and ice are formed from water, snow and ice are frozen water.

The sun warms the earth weakly, Frost crackles at night, In the yard of the snow woman The carrot nose has turned white. In the river the water suddenly became still and hard. The blizzard is angry, the snow is spinning, It sweeps everything around with snow-white silver.

Where does snow form?

A cloud walked across the sky And accidentally dozed off. Violent winds in the wild They saw: the cloud is sleeping, And from there the fluff flies ... The fluff flies - It ripples in the eyes, And you catch it - It's cold.

Snowflakes are formed high in the sky, in the clouds.

Where does ice form? Can we make ice ourselves? How? Do you make ice at home? For what?

Remember what shape snowflakes fell on your mittens while walking? All of them were different and very beautiful, but they always had six rays, six needles.

The first snowflakes are spinning in the air, They will fall to the ground, but not stale. The first snowflakes on your hand will melt... They cool, excite and remind, That winter days are about to come, That it's time to prepare skis and skates, That it's time to prepare sleds for children. And make a skating rink and a slide in the yard ... The first snowflakes - hello from winter, As if checking whether you are waiting or not.

We made a snowball. The ears were made later. And just instead of eyes, Embers were found with us. The rabbit came out alive! He has a tail and a head! Do not pull on the mustache - They are made of straws! Long, shiny, exactly real!

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Slides captions:

The world around us Where do snow and ice come from

All winter lies quietly, and in the spring it will run away. Not a gem, but glitters.

Guys! Let's study the properties of snow and ice.

When warm, snow and ice melt. Water is formed.

Snow is white. Ice is colorless.

Snow is opaque. Ice is transparent.

The snow is loose. Ice is fragile.

Snow and ice are formed from water, snow and ice are frozen water.

Where does snow form?

A cloud walked across the sky And accidentally dozed off. Violent winds in the wild They saw: the cloud was sleeping, Like a featherbed, Ripped open - And from there the fluff flies ... The fluff flies - It ripples in the eyes, And you catch it - It's cold.

Snowflakes are formed high in the sky, in the clouds.

Where does ice form? Can we make ice ourselves? How? Do you make ice at home? For what?

Gray geese flew, They dropped white fluff. Grandpa is building a bridge without an axe.

Remember what shape snowflakes fell on your mittens while walking? All of them were different and very beautiful, but they always had six rays, six needles.

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"How snow is formed" - Ice is colorless. Gray geese flew, They dropped white fluff. Snowflakes are formed high in the sky, in the clouds. Do you make ice at home? The first snowflakes are spinning in the air, They will fall to the ground, but not stale. All winter lies quietly, and in the spring it will run away. Let's study the properties of snow and ice. Remember what shape snowflakes fell on your mittens while walking?

"Where do snow and ice come from" - The water cycle in nature. Ice properties. Where does ice form? The snow is loose. How ice is formed. When warm, snow and ice melt. Snow and ice are formed from water, snow and ice are frozen water. Where do snow and ice come from? Snow is opaque. properties of ice and snow. Natural phenomena characteristic of winter. Snow is white.

"Hoarfrost snow rain dew" - Refers to heavy precipitation falling on the earth's surface. The origin of dew Snow. Dew. Snow formation. The main water crystal has the shape of a regular hexagon in the plane. Snow is a form of precipitation consisting of small ice crystals. How dew, frost, rain and snow are formed.

"States of Water" - Where Water Meets. The water cycle in nature. "Sinking - not sinking." What is water like? Oceans, seas and rivers are filled with water. In the cold, water particles move more slowly, so the water turns into ice. Water vapor. A lot of water goes into production. Water properties. Water pushes out lighter objects.

"Water cycle" - Keyword: water cycle. Who is the Washcloth Commander? Academician A.P. Karpinsky called water "the most precious mineral." Crossword. 13 It does not burn in fire and does not sink in water. 14 Who is the Great Wash Basin, Chief of the Wash Basins? The sky reflects, the earth decorates. The water cycle in nature. At a depth of up to 1 km, more than 4 million cubic kilometers of water are stored in the earth's crust.

"Water is a natural phenomenon" - The water cycle in nature. Crossword. Questions for the crossword. Conclusions. Hydroelectric power plant. Without water, life is impossible. Land. You have heard about water. If the water cycle disappeared. Cycle stages.

In total there are 17 presentations in the topic

MKOU "Yeltsovskaya secondary school"

Troitsky district of the Altai Territory

Where does snow and ice come from?

research work

Head: Shatilova E. A.,

primary school teacher

Eltsovka-2013

Table of contents

Introduction………………………………………………………………..3

Literature review………………………………………………………..4

Location of the study…………………………………….5

Research methodology……………………………………………..5

Research results………………………………………………6

4.1 Investigation of the properties of ice and snow…………………….6-7
4. 2. Snow research…………………………………………………8

4.3. Studying the taste of ice and snow…………………………..8
4.4. Determining the significance of snow and ice in the life of nature and man ..9

Conclusions………………………………………………………………….10

Introduction

For a long time people have been interested in the following questions:
- Why is it raining?
- Why is the sun shining?
Why does day follow night?
- Where does the snow come from?
These questions began to worry me as well.
With the advent of winter, the temperature dropped. Snow on trees, fields, roofs of houses. The water in the reservoirs froze. Ice bound rivers, lakes, ponds. Snow and ice are the most striking signs of winter.
I was interested in the question, what are the properties of snow and ice?

Target:

Prove that ice and snow are natural phenomena.

In accordance with the problem, subject and purpose of the study, the followingtasks:

1. Get acquainted with the properties of snow and ice.

2. Identify similarities and differences.

3. Study literature that talks about the benefits of snow and ice.

Putting forward a hypothesis.

Is it possible to assume that snow and ice are the same thing.

During the work, we usedmethods:

The study of natural history literature on this topic;

Research, observations;

Analysis of the results obtained by comparison.

Object of study - snow and ice.

Subject of study - properties of snow and ice

1. Literature review

When there is a lot of snow in winter - it's wonderful! The air becomes clean, because snowflakes clean it of dust and dirt. It is very useful to breathe clean air. The number of diseases is reduced. If the winter is snowy, in the spring the earth will drink its fill of moisture. Snow promises us a harvest. No wonder they say: "A lot of snow - a lot of bread." Snow is needed to protect crops from the cold. Under the snow there is almost never more than two degrees of frost. In spring, the snow melts and waters the earth. In severe frosty winters, many birds hide in the snow: black grouse, hazel grouse, partridges, capercaillie. Mice hide under the snow. Bears and badgers hibernate. A hare hides in the snow in bad weather. At the bottom of deep reservoirs in winter, the temperature is not lower than 4 degrees. The ice roof reliably protects from a cold.

When the air temperature drops below 0°C, the water on the soil surface freezes and turns into ice. The ice surface is smooth and slippery. Ice is a dangerous phenomenon of inanimate nature for people. You can slip, fall and be injured. The knowledge that ice is slippery helped in ancient times in the fight against enemies. Fortresses, as a rule, were protected from enemies by ditches with water. In winter, when the enemy still approached the fortress, the defenders poured water on the walls of the fortress. It was impossible to climb up the ice wall.

Ice is a solid. This property of ice is used by man. People use this property of ice in order to move through the frozen reservoirs in winter by transport and on foot. This is especially important in places far from railways, where powerful trucks carry cargo along icy roads. The properties of ice as a solid body are also used in stadiums, schoolyards, where large ice skating rinks are filled in winter for sports.

Snow and ice are fun for kids and adults.

2. Location of the study

Work began in December 2013. The research was carried out at the MKOU "Eltsovskaya Secondary School".

3. Research methodology

During the research, the methodology from the textbook "The World Around" Grade 1 (5), and the methodology from the methodological manual on the world around were used. (7)
Snow and ice were taken for the study. A wooden stick was used to determine looseness. To determine the color - colored paper.

4. Research results

4.1 Investigation of the properties of ice and snow

Experience #1

To find out the properties of snow and ice, I took a lump of snow. Made a hole with a stick. But I could not pierce the ice with a stick. Then I took a hammer and hit a piece of ice. The ice cracked and crumbled.
The results of the study showed that the snow is soft, loose. Ice is hard and brittle.
This experience showed that snow and ice are different from each other. (Attachment 1)

Experience No. 2

In order to determine the color of the snow, I put a lump of snow and a piece of ice on a sheet of colored paper. Compare snow and ice by color. Snow is white and ice is colorless.
I tried to see the color of the paper through the snow and ice. The color is not visible through the snow, but through the ice it is visible. The results of the study showed: snow is white, ice is colorless. Snow is opaque, ice is transparent. (Annex 2)
Why? It turns out that snow cannot let the entire sunbeam through itself and reflects the purest color of the white sunbeam. And the ice passes the sunbeam and remains colorless.
These properties of a snowflake and an ice floe differ from each other.

Experience No. 3

I was interested to know what snow and ice are made of. For this I took 2 glasses. I put snow in one glass and ice in the other. The snow melted faster than the ice.
If water from melting snow and ice is placed in the freezer, the water will freeze again.
Snow and ice are made up of water. The snow melts quickly. Ice slowly. (Annex 3)
And the water from the snow and ice froze in the refrigerator.

Experience No. 4

I put snow and ice in a container of water. And you know what I saw? Neither snow nor ice sank, but remained on the surface of the water. So snow and ice are lighter than water. (Annex 4)
Thus, I disproved the hypothesis. Snow and ice are not the same thing.
Although they have different properties, snow and ice are frozen water.

4. 2. Snow research

In order to find out whether the snow was pure or not, I put a lump of snow in a glass. When the snow melted, a dark precipitate appeared at the bottom of the glass. Through several layers of gauze, melted water was poured into a clean glass. Dirt remained on the gauze.
Observing the condition of the snow in various places, I found out that the snow in the forest is cleaner than near the roads. (Annex 5)

4.3. Study of the taste qualities of ice and snow

Mom says you can’t eat snow and ice, but I learned from books that if you put fruit juice in a container in a freezer, it will freeze and turn into a piece of ice. To make real ice cream, you need to constantly stir the liquid while freezing. This is the only way to get ice cream, not ice.
I did research: in the freezer I got ice cubes from water and juice. Ice cube made from juice turned out to be much tastier. I tried snow from the freezer - tasteless. (Annex 6)
As a result of research, I realized that snow and ice can only be edible if they were made by a person.

4.4. Determination of the importance of snow and ice in the life of nature and man.

Observation #1

One day, while walking near the house, I dug up the snow with a shovel. And I saw little sprouts of grass. From the textbook "The World Around" I learned that many animals hibernate in the snow and hide from the cold. These are a mouse, a bear, a chipmunk, a hedgehog, a black grouse, a capercaillie, a hazel grouse. What do fishermen do on the river in winter? They catch fish. Why doesn't all living things freeze under the ice? It turns out that the temperature is above zero under the ice. It turns out that plants, roots, seeds need snow. It does not heat, but, like ice, it retains heat.
Snow and ice retain heat, which means they are of great importance for the life of plants and animals.

Observation #2

Playing snowballs, building snow towns, fortresses, skiing, sledding, skating are winter entertainments for people. From books I learned that in Russia they rode on ice-boats. Ice circles were being prepared, a place for a seat was cut out in them. They put straw and hay there. A hole was made in front of the ice for the rope. The bottom of the glacier was carefully leveled. Our great-grandmothers and great-grandfathers rode on such ice-boats. Masters make real works of art out of ice: ice carriages, palaces, castles.
And I also want to say that both snow and ice are very fond of children. Because in winter there are a lot of entertainments for children.
Snow and ice are of great importance in human life.

5. Conclusions

As a result of our experiments and observations, we have confirmed the initial hypothesis that snow and ice are not the same thing. The similarities and differences between snow and ice were revealed. We found out that snow and ice are of great importance in the life of wildlife and humans.

It is necessary to continue work on the study of the properties of snow. During the winter months, be outdoors as much as possible.

Conclusion

I discovered a lot of new things by studying literature. He himself participated in experiments and observations.
The work may have practical value. It can be used in the lessons of the world around.

Literature.

1. Biryukova A. Yu. Great Encyclopedia of a schoolchild. - Planet Earth. Publishing house Rosmen-Press, 2003.- 657 p.

2. Markin V. A. Children's encyclopedia. "I know the world." - M .: LLC "Publishing House AST", 2001.-557 p.

3. Klepinina Z. A. Textbook "Natural Studies" Grade 2 Moscow "Enlightenment" 1992.- 128 p.

4 . Krivobok E. V. Research activity of younger schoolchildren. - Volgograd: Teacher, 2008. - 138 p.

5. Pleshakov A. A., Textbook "The World Around". Grade 1 Moscow "Enlightenment", 2011.- 127 p.

6. Trafimova G. V., Trafimov S. A., Textbook "The World Around" Grade 1 Moscow "Academbook", 2008.-79 p.

7. Trafimova G. V., Trafimov S. A., Methodological guide to the world around 1st grade Moscow "Academbook", 2007.-104 p.

8. Feoktistova V. F. Research and design activities of younger schoolchildren. - Volgograd: Teacher, 2008. - 142 p.

Attachment 1

Photo 1