Get class 10 science solutions for students studying under NBSE (Nagaland), SEBA (Assam), TBSE (Tripura) or any other board following NCERT books. These materials should be seen only as references and nothing more.
We have provided a short introduction to each chapter so that you get some ideas about what you are going to read in that chapter. Click on the links mentioned under each chapter to get the solutions of that chapter. The solutions for class 10th science in-text questions refer to the questions that are given throughout each chapter, while the exercise questions refer to the questions asked at the end of each chapter.
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NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 1
In this chapter of science class 10, you learn about chemical reactions and equations. Simply put, whenever a chemical change occurs we can say that it has happened because of chemical reactions that have taken place. For instance, if you take a piece of wood and put some kerosene on it, after which you set it on fire, you will notice that after some time the wood turns into charcoal and ashes. Why has this happened? It has happened because, during the combustion, the wood and kerosene went through a chemical change. The chemical change happened because of chemical reactions that took place during the combustion.
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NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 2
Chapter 2, Acid, Bases and Salts, discusses in detail the reactions of acids and bases, how acids and bases react to each other and many more interesting reactions that we see in our everyday life but don’t think very critically. We learn how acids and bases react with metals to produce hydrogen gas and salts. We learn that acidic and basic solutions are good conductors of electricity as they produce hydrogen and hydroxide ions. The chapter discusses salts in detail and their various uses it in our lives and in industries.
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NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 3
Chapter 3 of science class 10, Metals and Non-metals, clearly defines what metals and nonmetals are and how they are very different from each other. In a nutshell, metals can be defined as those substances which have a shining surface in their pure state. They are also a good conductor of heat and electricity and have a high melting point. Metals are generally solid though there are a few like mercury which cannot be called technically solid. Metals are malleable and ductile which means that we can beat on metals and give them the form of metal sheets or wires. Non-metals, on the other hand, have very different physical properties comparing the two metals. They are largely non-conductor of heat and electricity and are not solid. Some of the examples of non-metals are sulphur, hydrogen, etc. Non-metals are also not malleable or ductile. This chapter will give you a clear idea of what you can call metal and non-metal.
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NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 4
As the name of chapter 4, Carbon and its Compound, indicates, it specifically discusses the element carbon and the various compounds it can form. Carbon is one of the most important elements that we can think of. To give you an idea of how important carbon is you must know that the books you read, the clothes you wear, and the food you eat are all based on this element. This chapter discusses the various physical and chemical properties of carbon and how carbon shares its valence electrons with other atoms of carbon or with atoms of other elements. Carbon also has a unique ability to form bonds with other atoms of carbon leading to the formation of large molecules of the compound. This peculiar property of carbon is called catenation. While a few other elements exhibit this property, no other element can go to the extent carbon can.
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NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 5
In chapter 5 of science class 10, Periodic Classification of Elements, you will learn how the different elements that are found in nature can be grouped together according to their properties so that they are easy to remember and properly arranged. From time to time various individuals had come forward with their own arrangements of all the known elements. One of the earliest persons to arrange the elements in a systematic manner was Johann Wolfgang Dobereiner, a German chemist. He called his groups of elements “triads.” After Dobereiner, an English scientist named John Newlands also tried to arrange the elements in a table in the order of their increasing atomic masses. Dmitri Ivanovich Mendeleev, a Russian chemist also developed a Periodic Table but all these Periodic Tables developed by different individuals had limitations and since new elements were discovered, the tables became obsolete. Henry Moseley, an English scientist finally modified the Periodic Table of Mendeleev and it is largely in use today. The modern Periodic Table is a modified version of Mendeleev’s table.
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 6
Chapter 6 of science class 10, Life Process, differentiates between what is alive and what is not and what are the different aspects of a living thing. The chapter mentions that every living form requires nutrition and not all living beings derive their nutrition from nature in a similar manner. Plants, for instance, derive their nutrition requirements through a process called photosynthesis in which they use minerals found in the land and sunlight to create their food. This type of nutrition is called autotrophic nutrition. Plants are also called primary producers. Similarly, the way parasitic life forms like mushrooms and fungus derive their energy requirements without producing their own food but depending on others is known as heterotrophic nutrition. The chapter also discusses extensively how human beings get their nutritions what are the different stages involved in it.
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NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 7
Not all movements that we see in a living thing can mean growth. While the germination of a seed and becoming a plant can be identified as growth, a cat crossing the street, though is in movement, the movement cannot be identified as growth. In Chapter 7 of science class 10, Control and Coordination we will understand the different movements in a living organism that cannot be associated with growth. Also, we will learn the different parts and attributes of a living being and how they function, and why they function. We will learn about human anatomy, tissues, the brain, and other organs. We will learn about hormones in animals including humans, the nervous system, etc.
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NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 8
Reproduction is the process of reproducing similar organisms. Reproduction in different living beings happens in different manners. For instance, unicellular organisms like Amoeba and protozoa reproduce their own kind by the process of cell division or fission. Multicellular organisms with relatively simple bodies reproduce by breaking into smaller pieces upon maturation. The smaller pieces then grow into new individuals and upon the maturation, they again break down into smaller pieces. Regeneration is another form of reproduction that we see in a multicellular organism like a hydra. Hydra can be cut into a number of pieces and each piece grows into a complete organism. Humans and other complex organisms create new organisms through sexual reproduction. In chapter 8 of science class 10, How do Organisms Reproduce, we will learn about the different modes of reproductions and why reproduction is necessary.
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 9
Chapter 9 of science class 10, Heredity and Evolution, will take us further in the process of reproduction and make us understand why it is very common to see that a baby often looks similar to his/her parents. This is because of heredity and the DNA that is being passed from the parents to the child with small inaccuracies. It is the copying of DNA that gives the child similar features. The chapter also gives us an introduction to the theory of evolution proposed by Charles Darwin. According to the theory of evolution, every organism that we see evolved from other organisms over millions of years. For instance, according to the theory, humans evolved from primates and the surest evidence of this is that the DNA that monkeys and humans share is remarkably similar. Darwin proposed that during the process of evolution weaker organisms who could not adapt or evolve died out while those who could evolve to the changing environment survived. He called this “the survival of the fittest.”
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 10
In chapter 10, Light- Reflection and Refraction, we will learn about light in detail and the different properties of light. This chapter also will make us understand the different kinds of mirrors and lenses and the different images they form according to the physical features of the mirrors, the distance of the object from the mirror and how light affects the formation of the image. Light travels in a vacuum at an enormous speed of 300000000 m/s. The speed, however, is different depending on the medium.
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 11
Chapter 11, the Human Eye and the Colourful World is the continuation of chapter 10 but it focuses more on the human eye and the images formed in the eyes. This will make us understand how we are able to see and what are the different parts of an eye and the function they perform. Human eyes but are not perfect and often they don’t work perfectly leading to two conditions like myopia, hyper myopia, astigmatism, etc. This defect, however, can be collected by using a lens or spectacle. This chapter will also make it clear that light is not white in colour but is a combination of seven colours and that is why we are able to see rainbows in the sky.
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 12
Electricity is an important part of modern society. We cannot think of a world without electricity. But what exactly is electricity? How is it produced? And how it is transferred from one place to another? This chapter will try to answer these questions as well as more. We will learn in detail about electricity, circuits and electric generators also known as dynamos. We will learn about Ohm’s law, resistance and the factors on which the resistance of a conductor depends.
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 13
In Chapter 12 we learned about electricity, in chapter 13 Magnetic Effects of Electric Current, we will learn more about the heating effects of electric current and how electric current-carrying wires behaves like a magnet. One of the earliest scientists who gave us an insight into electromagnetism was Hans Christian Oersted. His understanding of electromagnetism later led to the invention of the radio, television, and fibre optics. We will learn about Fleming’s left-hand rule, electric motor and how electricity generally flows. We will also learn about the great scientist Michael Faraday who made several path-breaking discoveries including electromagnetic induction and laws of electrolysis.
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 14
Chapter 14, Sources of Energy, deals with the sources of energy that are available to us and which runs the world. Energy keeps the world moving. We derive energy to do our day to day activities from different sources and thus energy comes to us in various forms. In this chapter, we will learn about a few sources of energy and study the advantages and disadvantages of each source. Energy sources can be broadly classified into two forms these are exhaustible sources and inexhaustible sources. The sources of energy which will one day exhaust are known as exhaustible sources of energy like fossil fuels. The sources of energy that get renewed and are not going to run out are known as inexhaustible sources of energy like sunlight, wind. We will also learn about the implications of these different sources of energy on the environment and why it is becoming necessary to switch to greener sources of energy that do not pollute the environment.
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 15
Chapter 15, Our Environment, gives us a general perspective about the environment we are living in. We hear about the environment every day as this is a very important factor in our lives and this chapter will make us understand the various components of the environment. We will learn what an ecosystem is and why it is important. We will learn about the Food Chain and Food Web and how interdependence is an integral part of the environment. This chapter will also give us an insight into the impacts of the environment that are being caused due to human activities like the depletion of the ozone layer and garbage management.
NBSE, SEBA, TBSE, NCERT solutions class 10 science Chapter 16
Resources are limited and we should use them judiciously. Chapter 16, Sustainable Management of Natural Resources, teaches us how we can use our natural resources carefully and why we should do this. The rate at which we are using our natural resources is alarming. And it is not always that we use them, many times we waste our natural resources. An example of this would be when we leave a room with the lights on. Electricity largely still in our country is produced using coal and coal is a non-renewable resource which means one day we will use up all the coal and there will be no more coal. Presently, we don’t have the infrastructure or technology which we can use to mass produce energy using natural resources which are renewable like light and wind. Therefore we should be very careful about how we use our resources. We should use them judiciously.
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