On our planet, the weather changes occur regularly throughout the year.Such changes are called seasons.All seasonal changes in nature have their separate name.This winter, spring, summer and autumn.Changes in the weather and changes in the behavior of the animal world during these periods depends on the amount of solar radiation that is distributed to different regions of the globe.Another important factor is the angle of incidence of the solar beam on the surface of the Earth.The greater the tilt angle tends to direct, the hotter becomes a specific location of incidence of the beam.Also affected by seasonal changes and the length of the day.
dependence of seasonal variations on the location
in northern and southern hemispheres of the globe seasonal changes in inanimate nature are completely opposite.It depends on the position of the Earth relative to the sun.Imaginary red line on the globe two hemispheres are divided exactly in the middle.This line is called the equator.Throughout the year, the sun's rays fall on the area almost at a right angle.And so in the countries located on the equatorial line, is constantly hot and dry weather.Traditionally considered to be the beginning of the year the winter.
Winter - cold and beauty
Northern Hemisphere is in winter, farthest from the sun.All seasonal changes in nature at this time in anticipation of freeze warming.Time low temperatures, snow, winds and heavy ice.Many animals hibernate to conserve vital energy.After the winter equinox, December 21 Sun begins to rise higher above the horizon, and the length of the day increases slowly.
Winter time for nature - is a period of struggle and beauty.The plants stop their growth, some of the animals and birds are moving to warmer climates, and people fleeing from the cold in the protected areas.You can see the abandoned nests of birds, bare branches of trees, and large amounts of snow.
changes in winter weather
Winter weather is changeable and unpredictable.One week may be severe frosts, and the next - suddenly descend thaw.In cold hear the crackling of the trees in the cold freezes the water in rivers, lakes and ponds.Ice crystals form on the surface of ponds solid upper layer of water that protects the inhabitants from the deep penetration of cold.In remote mountainous areas snowstorms will wear expensive, and people have to make pre-cache.
When thaw seasonal changes in nature can manifest unexpected rains, which in return creates frost on roads and plants icy crust.Ice covered trees, houses, cars and roads.This natural phenomenon is very dangerous for animals and humans.Accumulation of ice broke trees, power lines and spoils makes unusable bridges and roads.
flora and fauna in the winter
Most of the plants in winter is at rest.Among the white snow drifts green only certain types of evergreen trees such as spruce, cedar, pine or fir.In late winter during warming movement begins juices, and on the trees the first buds appear.
Many birds migrate to warmer regions, but more than 30 species remain in the Northern Hemisphere even during the most severe frosts.This is usually the birds that feed on the seeds of some plants.In the winter are also birds - scavengers such as ravens, gulls and pigeons and hunters like a hawk or an owl.
Winter - it's a long time dream for many animals, and seasonal changes in nature occur everywhere in different ways.Frogs go into sleep mode and dig in the dirt, and small animals like voles and marmots are hiding in the pre-open one mink.Also behave and earthworms, caterpillars and bees.Stacked in the warm den and bears.During hibernation the animals are in a state of suspended animation.Endure seasonal changes in nature and many other mammals.This otter, muskrat, deer, hares and many other types of forest dwellers.
Spring - time to flowering
Since March 20, the length of the day increases significantly, the average temperature rises, the first flowers begin to bud.To spend the winter in the cold the animals begin to molt, and hibernate - to return to the old way of life.Birds build nests and chicks are beginning to acquire.Born and numerous offspring in mammals.There are a variety of insects.
In the Northern Hemisphere spring comes the day of the vernal equinox.The longitude of the day compared to the length of the night.Spring begins heavy rains and melting snow.Water basins overflow and begin spring floods.The first flowers bloom, and begins their active pollination by insects appeared.The first flowers appear from the snowdrops, irises and lilies.The trees leaves appear.
Awakening wildlife
Gradually, the air is filled with singing returning from tropical countries for migratory birds.Toads and frogs wake up after hibernation and start singing their mating songs.Many mammals master new territory.
spring seasonal changes in nature begins with the appearance of various insects.Very soon you can see the mosquitoes and flies.Behind them in the early spring awakening and other insects.Various bumblebees, wasps, and the like are protected by spring frosts fluffy striped fur.
Summer - maturing crop
after June 21 in the Northern Hemisphere summer starts now.Stormy is the development of all plants and herbivores it is time to power supply.Predators, in turn, actively hunt for lovers of green fodder.All seasonal changes in nature occur very quickly in the summer.Excellent weather allows people to grow during the summer months as many fruits and vegetables that their reserves may last for a very long time.Perennials also gain the basic power is in the summer months.
At the end of the summer begins to collect ripe harvest.Many shrubs, trees and other plants ripen fruit.But the summer production of fruits and vegetables sometimes sharply reduced due to dehydration of the soil and plants, failure to provide a sufficient amount of water.
summer, many birds teach their young and prepare them for the long autumn migration.Summer and seasonal changes in nature in the summer - it's a great subject for studying the behavior of not only birds, but also many insects and other wildlife.Educational tour "Seasonal changes in nature" will be very interesting for children.
Autumn - collecting fruits
September 22 throughout the Northern Hemisphere there are new seasonal changes in nature.Autumn pretty soon begins cooling.There is a drop in temperature, and the midday sun does not warm very much.The days are getting shorter, and the life cycle of many plants ends.The animal world is preparing for the migration to the south, or builds a warm shelter for a long hibernation.Some animals and birds change their summer clothes for a warm winter.Among the many species of animals mating season begins.Zhuhnet grass and leaves on the trees change color and fall off.The sun does not rise above the North at all, and the next six months will be in the Arctic darkness.Autumn ends with the winter solstice.
trace the most interesting seasonal changes in nature during the fall can be a short Indian summer.The return of warm weather for a few days of autumn allows animals and plants complete the preparation of a severe cold.Gardeners are closely watching the harbingers of frost in time to complete the collection of abundant harvest of fruits and vegetables.
Fauna autumn
Many animals and birds begin to move towards the south in search of milder temperatures and a reliable food supply.Some species of animals hibernate.Bears go into a deep winter sleep.In late fall killed a large number of insects.Some insects burrow deep into the ground and overwinter in a state of larvae or pupae.
variety of seasonal changes in nature in the fall for preschoolers will be clear if the children to explain what is happening and complement the story of the fall of illustrative examples.This is a demonstration of beautiful maple leaves of orange and red, various articles made of autumn leaves and twigs, observing wildlife.Interesting may be the children and autumn seasonal changes in a corner of nature, which is usually created in a preschool.
Calendar nature
To consolidate knowledge of the change of the seasons and a better acquaintance with nature, together with preschoolers can make calendars nature.It can be themed children's drawings or applications using the summer or autumn of natural material.Natural phenomena can be represented as a diagramming or labels with a variety of thematic content.
different story pictures are placed in the calendar in line with the ongoing season.
In winter, it may be the image of sleeping bears or animals with white fur cloak.Spring can be illustrated by images of snowmelt and the arrival of migratory birds.For visual transmission of the summer season, there are many methods available.This demonstration of ripe fruit and a variety of natural phenomena summer.The autumn season is also demonstrated clearly by using fallen leaves of trees.
the whole story about the natural changes during different seasons and the establishment of a calendar for observations of significant changes in the natural environment contributes to the development and education of children in their love for their land.
