Secondary education and schools 2025, January

One of the largest mountain systems of the mainland, stretching for 4500 kilometers, with a total area of more than one and a half million square kilometers - the mountains of Southern Siberia. Last modified: 2025-01-12 16:01

The Earth's crust is the hard surface layer of our planet. It was formed billions of years ago and is constantly changing its appearance under the influence of external and internal forces. Part of it is hidden under water, the other part forms land. The earth's crust is made up of various chemicals. Let's find out which. Last modified: 2025-01-12 16:01

In nature, there are such phenomena as dew, rain, frost, snow. They occur in different seasons and are repeated year after year due to the water cycle. How frost, dew, snow and rain are formed, read the article. Last modified: 2025-01-12 16:01

According to ancient legends, most of the constellations known to us are immortalized events of the distant past. Powerful gods placed heroes and various creatures in the sky in memory of their accomplishments, and sometimes as a punishment for misconduct. Often in this way eternal life was bestowed. The constellation Andromeda is one of these celestial drawings. It is famous, however, not only for its legend. Last modified: 2025-01-12 16:01

During 400 million years of existence, spiders have spread widely across our planet. It is difficult to find places where they would not meet. What characterizes the order of Spiders? What features do its representatives have? You will learn about where spiders live and how spiders live in the article. Last modified: 2025-01-12 16:01

"Vulgarity" is a word that has its roots in history, when writing was a curiosity. Its first meanings differed significantly from modern ones, due to the fact that many concepts did not exist at that time at all. Last modified: 2025-01-12 16:01

Every high school student knows about such spatial figures as a ball, cylinder, cone, pyramid and prism. In this article, you will learn about what a triangular prism is, what properties it is characterized by. Last modified: 2025-01-12 16:01

The school geometry course is divided into two large sections: planimetry and solid geometry. Stereometry studies spatial figures and their characteristics. In this article, we will consider what a direct prism is and give formulas that describe such properties of it as the length of the diagonals, volume and surface area. Last modified: 2025-01-12 16:01

The study of the properties of spatial figures plays an important role in solving practical problems. The science that deals with figures in space is called stereometry. In this article, from the point of view of stereometry, we will consider a cone and show how to find the area of a cone. Last modified: 2025-01-12 16:01

In physics, the consideration of problems with rotating bodies or systems that are in equilibrium is carried out using the concept of "moment of force". This article will consider the formula for the moment of force, as well as its use to solve this type of problem. Last modified: 2025-01-12 16:01

Movement around the axis of rotation is one of the most common types of movement of objects in nature. In this article, we will consider this type of movement from the point of view of dynamics and kinematics. We also give formulas relating the basic physical quantities. Last modified: 2025-01-12 16:01

The heart is an organ that is the motor of the human body, both figuratively and literally. It performs a huge number of different functions, but all of them are aimed at ensuring he althy human life. Last modified: 2025-01-12 16:01

The formation of degrees of adjectives is one of the very first and most important rules that a child learns at school. We encounter comparative and superlatives in our daily lives - that is why it is so important to be able to form them and know the most necessary rules. Last modified: 2025-01-12 16:01

The ability to calculate the volume of spatial figures is important in solving a number of practical problems in geometry. One of the most common shapes is the pyramid. In this article, we will consider the formula for the volume of the pyramid, both full and truncated. Last modified: 2025-01-12 16:01

Today, every student can easily answer that the Earth is round. And exactly? Or still? Ideas about it as a flat surface have long since passed into history, but there are other nuances that have already been scientifically and proven. Let's find out. Last modified: 2025-01-12 16:01

Albania is a small country not as far away from us as it might seem. It attracts with its originality and lack of total popularization. I am glad that at least small parts of the map of the civilized world remain attractive from the cognitive side. Last modified: 2025-01-12 16:01

Most of us have met these poultry more than once, but hardly thought about their biological classification. So, the topic of our article is poultry from the order of chicken. Last modified: 2025-01-12 16:01

The direct subject of a part of scientific research was a person and the society that he forms. Social science is one of the sciences, the center of study of which has become society. In our article, we will touch on this issue in order to recall what social science studies and what interesting data it can provide. Last modified: 2025-01-12 16:01

Knowledge is the basis of our existence in this world created by man according to the laws formed by human society. Huge arrays of information of various kinds have become our heritage, thanks to the discoveries of our ancestors. Last modified: 2025-01-12 16:01

We all strive to become individuals. But what is the meaning of this concept? Social science as one of the human sciences has been considering this problem for a long time. Last modified: 2025-01-12 16:01

The end of the world, Armageddon, we are scared from everywhere. Let's analyze the concept of "Armageddon": what is it, where to expect, and many more interesting things about it. Last modified: 2025-01-12 16:01

The Pacific Ocean is the very embodiment of the sea element on our luxurious planet. This huge natural formation creates the weather of all continents to a greater or lesser extent. Its waves are beautiful in their power and indomitability. Last modified: 2025-01-12 16:01

Our everyday and secular speech is constantly enriched by borrowings from other languages. Some words are no longer new at all, but only recently began to come into use. Different words of French origin began to appear on hearing more and more often. This means that more and more people are adopting this beautiful turn, wrapped in French charm. It is the word "comme il faut" (what it is, the meaning and the correct context of use in speech) that we will consider right now in our article. Last modified: 2025-01-12 16:01

How is a tributary different from a river? In fact, this is not such a simple question as it might seem at first glance. In many river systems there is a real confusion about the definition of the main watercourse. Let's try in our article to deal with all the nuances of this geographical problem. Last modified: 2025-01-12 16:01

In order to write applications of different levels of complexity, you first need to gain knowledge on how to do it. And it is desirable to start from the very basis of algorithmization and programming. That's what we'll talk about in the article. Last modified: 2025-01-12 16:01

A character known to everyone from children's fairy tales, an evil witch from a hut on chicken legs, flying in a mortar and luring small children into the stove … But she is not always on the side of evil forces, in other fairy tales Baba Yaga is quite cute the old woman helps the heroes, and even her insidious intentions eventually turn into good. Let's try to figure out what kind of fairy-tale character it is, where it came from in Slavic mythology, which means its name. Last modified: 2025-01-12 16:01

Often, people who are new to geography ask the question: what region or region does Adler belong to? This is also of interest to travelers traveling to the south of Russia for the first time. In this article, we will try to answer this question in as much detail as possible. Last modified: 2025-01-12 16:01

Krylan or, as it is also called, a flying dog is a mammal of the order of bats. Sometimes they are also called flying foxes. All representatives of this group of bats, unlike bats, inhabit exceptionally warm regions: South and West Africa, Australia, South Asia and its islands and Oceania (in particular, Samoa and the Caroline Islands). Flying dogs live in the Maldives, Syria, southern Japan and southern Iran. In Russia, this species of animals is completely absent. Last modified: 2025-01-12 16:01

The Gulf of California is part of the Pacific Ocean. It is located in northwestern Mexico and is bounded by the Baja California peninsula and the states of Sonora and Sinaloa. Its length is 1126 km, and its width ranges from 48 to 241 km. Last modified: 2025-01-12 16:01

What does "use" mean? What is its dictionary meaning? This article provides an interpretation of the word "use". Additionally, synonyms are given, as well as a part of speech of this language unit. To consolidate the material there are examples of use. Last modified: 2025-01-12 16:01

The main path is always straight and well maintained. But how many people use it? But even official services check documents and levy taxes. How to be? For those wishing to quickly resolve any issue, any loophole will help. What is hidden behind a capacious word? Read the article. Last modified: 2025-01-12 16:01

What are rarefied gases? Let's analyze their main characteristics, as well as areas of application. Last modified: 2025-01-12 16:01

Republic Square in Paris appeared relatively recently and is not popular with tourists, but the French are very kind to their attractions. Rallies and protests often take place on this square. Last modified: 2025-01-12 16:01

The internal and external structure of a frog is very similar to that of fish. This only confirms their relationship. The habitat of the frog is huge. Last modified: 2025-01-12 16:01

The play by Alexander Nikolayevich Ostrovsky "Thunderstorm" was written by the playwright in 1859. Consists of five actions. Events unfold in the Volga town of Kalinovo. To understand the plot, it is necessary to take into account that ten days pass between the third and fourth acts. Last modified: 2025-01-12 16:01

It is known that from the Roman border camp called Vindobona, based on the site of former Celtic settlements, Vienna appeared. The capital of which country in Europe can still tell such a deep story of its founding? After all, its beginning dates back to the 15th year BC. Last modified: 2025-01-12 16:01

Hypostasis - what is it? Sometimes this word can be heard in colloquial speech. But in such cases it is used in a figurative sense. As for the direct meaning, it belongs to the field of church terminology. A more detailed story about what this is a hypostasis will be given below. Last modified: 2025-01-12 16:01

Share - what does it mean? This word is associated with the concept of part of the whole. However, its significance is not limited to this. It also has to do with mythology, with the measurement of weight, with faith in fate. You will learn more about this, as well as about how much a share is, from our essay. Last modified: 2025-01-12 16:01

What is commitment? How does it affect the success of the company? What are the types of commitment? We will try to find answers to all these questions in our material. Last modified: 2025-01-12 16:01

Mutation always happens suddenly. The genetic material of an organism changes: something happens inside the chromosomes or genes, and these changes are usually visible to the naked eye. In some cases, the consequences are severe, and sometimes a fatal outcome is possible for the body. Mutation does not occur on its own. The cause is always a mutagenic factor. Last modified: 2025-01-12 16:01