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окружающий мир

окружающий мир 3 класс

видеоурок по окружающему миру

о роли грибов в природе; о круговороте веществ и его звеньях

моделировать круговорот веществ в природе

характеризовать виды организмов

рассказывать о круговороте жизни

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if we are talking about the cycle of life, then you

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probably guessed that we will

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talk about the processes occurring in

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living nature,

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let’s remember what living nature is

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and what kingdoms it is divided into: living nature

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includes everything that breathes, feeds,

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reproduces, dies, is born, scientists

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divide it into the 4th kingdom kingdom bacteria the

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fungal kingdom the

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animal kingdom and the plant kingdom

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representatives of all these kingdoms are

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participants in the endless process of the

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cycle of life on earth the basis of the

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cycle of life is made up of three groups of

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organisms

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organisms producers organism and

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consumers

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organisms and destroyers

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organisms producers are

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plants they use the energy of the sun and

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from carbon dioxide and water Nutrients are formed:

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sugar and starch; they serve as a source of

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energy not only for the plants themselves, but

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also for other living organisms;

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animals consume ready-made substances

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produced by plants;

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therefore, they are called

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consumer organisms; you already know that animals that

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eat plant foods are called

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herbivorous animals; predators also

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belong to the body; consumers;

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consuming in the food of herbivorous

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animals,

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predators control their numbers; if

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predators disappeared, then herbivorous

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animals would begin

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to multiply rapidly, and the eco-system would suffer along the way,

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because they would only eat all the grass

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and all the other forest inhabitants,

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shelter and food, cannot be allowed to

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disappear from this chain, although there would be

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one link otherwise this chain will break; a

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special group consists of organisms that are

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destroyers; these include bacteria and

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fungi; they destroy the dead remains of

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plants and animals;

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when a plant, animals die, they

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end up in the soil under the influence of bacteria;

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fungi; their remains turn into

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humus; thanks to other

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bacteria, mineral substances are formed from the humus

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these substances dissolve in the water

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contained in the soil

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then are absorbed by the roots of living plants

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and it all starts all over again,

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it turns out that substances travel in a

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circle from plants to animals with the remains of

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dead plants animals into the soil from

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soil to plant

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scientists call this phenomenon the cycle of

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substances and so representatives of different

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kingdoms living nature play a different role

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in the cycle of life on earth, and each of

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these links is necessary for the soil to play a huge role in the

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cycle of substances, because

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it is the soil that contains the mineral

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substances necessary for

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the life of plants, so

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we found out that all living organisms are

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participants in a single cycle of life, the

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main links of this cycle

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organisms producers organism and

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consumers and organisms destroyers

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this is how substances travel in nature

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in a circle and this circle will break

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if at least one link disappears what

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must be done in order not to disrupt the

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cycle of life we must protect and protect

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nature plant trees take care of

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animals

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because we you, too, are part of

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nature and for life we need fresh

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air,

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clean water, the light of the sun, nature pleases

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us with its beauty,

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so let’s be her friends

Description:

- Урок 12. Великий круговорот жизни Автор: Алматова Лариса Абуевна Видеоуроки Google Play - https://play.google.com/store/apps/details?id=com.geographyofrussia.evu03 мы узнаем: - о круговороте веществ, о его звеньях; мы научимся: - моделировать круговорот веществ в природе, характеризовать виды организмов; мы сможем: - рассказывать о круговороте жизни.

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