Secondary education and schools

Every evening when we look up at the sky, we see the moon there. It seems so close, and yet far from Earth. Are there conditions on the moon for humans to live there? Does our satellite have an atmosphere, water and oxygen? Do not know? Then let's find out together. Last modified: 2025-01-23 12:01

Colonization of distant planets and meeting with representatives of other civilizations is still a figment of the imagination of science fiction, but perhaps the hour is approaching when these pictures will become an objective reality. Be that as it may, but one of the symbols - the flag of the Earth - has already been developed and exists (and not in one version). There will be something to give to aliens as souvenirs-pennants at a meeting or - to hoist on a staff on a newly developed planet. Last modified: 2025-01-23 12:01

What is the geographic position of Brazil? The country occupies half of the South American continent. It belongs to the fifth place in the world in terms of area. At the same time, Brazil borders almost all countries of South America, with the exception of Chile and Ecuador. From the east, the country is washed by the waters of the Atlantic Ocean. Brazil is made up of 26 states, the number of which is marked with stars on the flag. Last modified: 2025-01-23 12:01

In 1833, while in Boldin, Pushkin wrote the poem "The Bronze Horseman". What questions did the poet raise in this work? Questions about social contradictions and the future of Russia. But his contemporaries, unfortunately, did not know about it. The poem was banned by Nicholas the First. It was first published without censored edits only in 1904. Last modified: 2025-06-01 07:06

Want to take an IQ test but not sure if you can do well? A few tips in this article will help you easily cope with this test. Last modified: 2025-01-23 12:01

In the course of geometry, the concept of a tangent is repeatedly encountered, including in relation to circles. But what is it and why is it interesting? What are its properties, especially when it comes to several circles?. Last modified: 2025-01-23 12:01

Proverbs are not just a kind of folk art. This is worldly wisdom, which allows you to get acquainted with the culture of the people. There is always a lesson in the proverb that helps children form the right attitude towards the world around them. Last modified: 2025-01-23 12:01

Mollusks spread across the Earth long before humans appeared on it. It is believed that their ancestors were flatworms. This is still traced in the structure of their body. They live everywhere - in water, on land and plants, as well as in stones and rocks. How much do we know about them? For example, what do molluscs eat? Who came up with the idea of eating them? And can they think? It is worth reading our article - and you will learn the most interesting facts from the life of these amazing creatures of nature. Last modified: 2025-01-23 12:01

The skill of multiplication and division by a column is formed in schoolchildren during the study of the topic "Extra-table multiplication and division", which is one of the key in the mathematics program in elementary school. Preparation begins long before the study of the topic itself. How to make sure that the assimilation of the material by each student is successful? What methodological advice should the teacher take into account? What should parents pay attention to?. Last modified: 2025-01-23 12:01

Polymer materials today are widely used in the construction of buildings and structures for various purposes. Among them, polycarbonate is a panel that consists of two or three layers, between which there are longitudinally oriented stiffeners. Due to the cellular structure, it was possible to achieve the mechanical strength of the web with low weight. Last modified: 2025-01-23 12:01

Do you think there are metals more expensive than gold and platinum? The answer is unequivocal: yes. You can read more about them, their areas of application and prices in this article. Last modified: 2025-01-23 12:01

Triangles are the basis of the basics for geometry. It is from their in-depth study that one should begin acquaintance with this science. Many properties of triangles will help you understand more complex aspects of planimetry. Last modified: 2025-01-23 12:01

About what fairy formulas are, how and why they are used in fairy tales, what role they play. Examples of these phrases are given. Last modified: 2025-01-23 12:01

People from ancient times sought to study the world around them and used various methods for this. Last modified: 2025-01-23 12:01

The word "scourge" is a homonym. Under this name there are two concepts that are not exactly diametrically opposed, but represent two different entities. On the one hand, the scourge is an object, and on the other hand, a person. Consider both, so that there are no questions. Last modified: 2025-01-23 12:01

Everything that surrounds us is a kind of information that we perceive with various senses. We see colors, smell, hear conversations and other sounds - it's all information. Last modified: 2025-01-23 12:01

When solving thermodynamic problems in physics, in which there are transitions between different states of an ideal gas, the Mendeleev-Clapeyron equation is an important reference point. In this article, we will consider what kind of equation it is and how it can be used in solving practical problems. Last modified: 2025-01-23 12:01

Astronomers say that if Jupiter were 80 times more massive, another star would appear in the vicinity of our Earth. But this gas giant is still giving off three times more energy into space than it receives. What does the dense atmosphere of the planet hide from the eyes of the observer?. Last modified: 2025-01-23 12:01

According to the Soros educational journal (No. 3, volume 6, 2000), over half of the annual radiation dose of the inhabitants of the planet is received in the process of breathing, irradiating their respiratory tract with radon. What is this hazardous element?. Last modified: 2025-01-23 12:01

A thousand years ago, lead, graphite and minerals similar in appearance were called molybdenum. The metal of the same name was isolated only at the end of the 15th century, and it took more than a hundred years to organize industrial production. Last modified: 2025-01-23 12:01

For many years, the Cook Strait, with its notoriety, difficult navigation and difficult navigational conditions, has been a very important communication value for the economy and social life of New Zealand. Last modified: 2025-01-23 12:01

The mysterious and distant Neptune has been known to astronomers for over one hundred and seventy years. His discovery was a triumph of theoretical science. Despite the development of instrumental astronomy and unmanned astronautics, the planet keeps many secrets, and the unusual orbit of Neptune's satellite Triton is still the subject of discussion and hypotheses. Last modified: 2025-01-23 12:01

Modern man, in general, is familiar with the concept of evolution as a process of continuous development of life on the planet. It is usually believed that evolution is a process of adaptability and changeability of all forms of living organisms throughout their long existence. At the same time, not everyone knows and understands what an elementary unit of evolution is - an individual, a group of organisms, a species. Last modified: 2025-06-01 07:06

A playground in a kindergarten is an important building for the growth and development of any child. In the game, the baby learns new things, learns the world and forms his own worldview. Therefore, the place for such activities should be reliable, safe and simply attractive. What else should be a playground - read the article. Last modified: 2025-01-23 12:01

Every day a person interacts with a large number of objects. They are made of different materials, have their own structure and composition. Everything that surrounds a person can be divided into organic and inorganic. In the article, we will consider what such substances are, we will give examples. We will also determine what organic substances are found in biology. Last modified: 2025-06-01 07:06

The cell nucleus is its most important organelle, the place of storage and reproduction of hereditary information. This is a membrane structure that occupies 10-40% of the cell, the functions of which are very important for the life of eukaryotes. Last modified: 2025-01-23 12:01

Among the variety of organic substances, there are special compounds that are characterized by color changes in different environments. Before the advent of modern electronic pH meters, indicators were indispensable "tools" for determining the acid-base indicators of the environment, and continue to be used in laboratory practice as auxiliary substances in analytical chemistry, and also in the absence of the necessary equipment. Last modified: 2025-06-01 07:06

In everyday life, we all now and then encounter phenomena that accompany the processes of transition of substances from one state of aggregation to another. And most often we have to observe such phenomena on the example of one of the most common chemical compounds - well-known and familiar water. From the article you will learn how the transformation of liquid water into solid ice occurs - a process called water crystallization - and what features this transition is characterized by. Last modified: 2025-06-01 07:06

What is a dielectric? What characteristics and properties do they have? What kinds exist? All this is explained in this article. Last modified: 2025-01-23 12:01

Air is one of the important components of the surrounding world. We need it not only for breathing, but also with its help important life processes are carried out. Air is needed not only by humans and animals, but also by plants. Therefore, in order to have fewer chemicals in it, you need to take care of the environment. Last modified: 2025-01-23 12:01

The article describes the nature of gamma decay, the properties of radiation, its effect on living organisms, and also gives the formula. Last modified: 2025-01-23 12:01

The well-known critic and writer Vissarion Grigoryevich Belinsky said that the guardian of our language is the human soul, he compared the soul with a genius, which is why, according to the critic, the use of foreign words in Russian speech does not make sense, moreover, people, who like this are devoid of taste and common sense. Last modified: 2025-01-23 12:01

The Republic of the Philippines is a state in Southeast Asia. This country has a rich and interesting history. In addition, today the Philippines is a popular tourist destination. Last modified: 2025-01-23 12:01

In this article, we will focus on the cervical triangles, the structural components of the neck, which play an important role in classifying the anatomical components of our body. Their locations, limiting parts and their relationship to the cervical fasciae will be considered. Last modified: 2025-01-23 12:01

The world of fauna is diverse and amazing. Its representatives differ from each other in many biological characteristics. I would like to dwell on the attitude of animals to ambient temperature and find out: what are cold-blooded animals?. Last modified: 2025-06-01 07:06

A person is lost against the backdrop of nature, but for each element of the surrounding world he comes up with his own names. And if a large mountain has its own name, then its small parts should also have it. Let one thing for all - "spurs". What is it and how does it appear? Read the article. Last modified: 2025-01-23 12:01

The student agreement is a document, the provisions of which are governed by the norms of civil and labor law. The basic concepts associated with a student agreement are described in detail in the Labor Code of the Russian Federation. Let's get to know them in more detail. Last modified: 2025-01-23 12:01

In our article we will consider the zones of the root structure, which allow it to carry out the most important functions in the plant body. The internal structure of this organ is distinguished by a clear differentiation, due to which the coordinated work of the whole organism is carried out. Last modified: 2025-01-23 12:01

The geopolitical position of the Crimean peninsula is very beneficial. This became the reason for the struggle of neighboring states for influence in these territories for many centuries. Twice in the last century Crimea is an autonomy. Let's consider how the legal status of Crimea has changed in a historical perspective. Last modified: 2025-01-23 12:01

No one from the inhabitants of the Far Eastern Territory will argue that their main river is the Amur. It is ranked fourth among the rivers of the Russian Federation, yielding in length only to such majestic streams as the Ob, Yenisei and Lena. The mouth of the Amur - the Sea of Okhotsk. Last modified: 2025-01-23 12:01