NCERT Solutions for Class 10 Science| Based on Updated Syllabus of CBSE

ncert solutions for class 10 science

We have prepared the NCERT Solutions for Class 10 Science Textbook according to the latest syllabus of CBSE for Board Exams of 2020. Science is the most popular choice of every students after passing Class 10th. But in the Class 10, Science subject is compulsory for all. NCERT Solutions for Class 10 Science will help you a lot in this regard as it cover most of the important concepts and theory of the textbook that could come in the examination. Firstly, you must well aware of the solutions of NCERT Textbook of Class 10th Science, then after you can read reference books if you want. Here, we have provided chapterwise NCERT Solutions of Science Class 10th which are accurate and detailed. The answers are prepared by our StudyRankers experts who have taken care of each level and difficulty while answering the questions. You can view these solutions by clicking on the links of chapters provided here.

List of all Chapters of NCERT Solutions for Class 10 Science

  • NCERT Solutions of Chapter 1 Chemical Reactions and Equations
  • NCERT Solutions of Chapter 2 Acids, Bases and Salts
  • NCERT Solutions of Chapter 3 Metals and Non-metals
  • NCERT Solutions of Chapter 4 Carbon and its Compounds
  • NCERT Solutions of Chapter 5 Periodic Classification of Elements
  • NCERT Solutions of Chapter 6 Life Processes
  • NCERT Solutions of Chapter 7 Control and Coordination
  • NCERT Solutions of Chapter 8 How do Organisms Reproduce?
  • NCERT Solutions of Chapter 9 Heredity and Evolution
  • NCERT Solutions of Chapter 10 Light – Reflection and Refraction
  • NCERT Solutions of Chapter 11 Human Eye and Colourful World
  • NCERT Solutions of Chapter 12 Electricity
  • NCERT Solutions of Chapter 13 Magnetic Effects of Electric Current
  • NCERT Solutions of Chapter 14 Sources of Energy
  • NCERT Solutions of Chapter 15 Our Environment
  • NCERT Solutions of Chapter 16 Sustainable Management of Natural Resources

Chapter 1: Chemical Reactions and Equations

Chemical reactions are various processes which involves change in chemical composition of some substance and forming new one. Many chemical reactions keep taking place in our surroundings. Examples are burning of candle, milk turning sour, rusting of iron. Chemical reaction taking place has many indicators such as change in color and temperature. After that chemical equation has been taught as representation of chemical reaction. It is discussed how to balance a chemical equation to represent law of conservation of mass. After that, it is discussed how to show other important aspects of chemical is discussed such as physical states of chemical reactions are indicated. Next various types of reactions are discussed with suitable examples. Some examples are very important for examination purpose. How the reactions are signified, is important to understand. Redox reactions are taught in last with examples of corrosion and rancidity.

Chapter 2: Acid Bases and Salt

The chapter deals with the concepts of acid, bases, and salts. In pervious classes we have discussed that acids are sour in taste, bases are bitter in taste. What are the different types of chemical reactions that they undergo and how is their reaction with certain compounds have been taught in the chapter. This chapter also makes us understand about the neutralization reaction and concept of salts. The pH scale is discussed as scale to major acidity and basicity of base. Various types of important chemicals like plaster of paris, bleaching powder, baking soda, washing soda are discussed with their preparation and uses.

Chapter 3: Metals and Non-Metals

The third chapter of the Class 10 Science, Metals and Non-Metals starts with some discussion of physical properties of Metals and Non-Metals. Many exceptions have been found in physical properties. For example, Mercury metal is liquid at room temperature, iodine, a non-metal have shiny appearance. Thus, It is important to look at chemical side. The reaction of metals are discussed with water, oxygen, acids and other metal salts. The reactions take place by the formation of ionic bonds and ion formation. This has been discussed by electronic configuration and as well as by Lewis structure. Occurrence of metals in the environment is disused. Metals are obtained from ore by various processes depending on the reactivity of metals. Such methods are discussed with suitable chemical reactions. Corrosion of metal is discussed. How to prevent metals from getting corroded is also studied. Alloying is one of the method where metals are mixed with other metals and non-metals. Alloys are good for strength of metals and non-metals. Different types of alloys are explained with their composition and uses.

Chapter 4: Carbon and its Compounds

Carbon is the element having mass number 12 and atomic number 6. It is difficult for carbon to form ions, thus it form compounds by sharing electrons and forming covalent bond.
Carbon and its compounds start with the description of the covalent bond that exists in Carbon. Covalent bond formation of various compounds are show using lewis structure and electronic configuration. After that we will discuss about various carbon chains. Carbon chains can be arranged in straight lines as well as in form of cycles. After that we will learn abou the nomenclature of Carbon and its compounds. Hydrocarbons are the basic organic compounds. The group of atoms attached to hydrocarbon chain forms functional groups. These functional groups are alcohol, carboxylic acid, aldehydes, ketones, amines and halogens. Different types of chemical reactions of carbon and its compounds are discussed. The reactions of carbon and it’s compounds are discussed. Two important chemical compounds ethanol and ethanoi acid is discussed. are discussed. In last soap and detergents are discussed with their differences.

Chapter 5: Periodic Classification of Elements

The arrangement of elements into the periodic table is discussed in fifth chapter. The chapter contains history of development of periodic table. The attempts to develop the periodic table are discussed. Why such models failed?, that is also studied in the chapter. After that we will describe the modern periodic table in detail. The related chemical and physical properties are discussed in accordance with modern periodic table.

Chapter 6: Life Process

In Life process, we will study in detail about the processes of Nutrition, Transpiration, Respiration, and Excretion in Human Beings and in Plants. All these things are important to leave. The thing is to consume food through digestive system, perform oxidation of food which involves the process of respiration, and transportation of food and water which is done through circulation. All such processes are discussed for plants and animals. Special attention has been given for case of human beings. Explanatory diagrams are given which can be asked to draw in examination.

Chapter 7: Control and Coordination

How our body is controlled? Who control our body? What is mechanism? How our body parts are controlled and various life processes are carried out. All that is taught in this chapter for animals (basically human beings) and plants. In plants it has been explained basically in form of autotropism and geotropism. Explanation about Nervous system of human beings, anatomy of the Human Brain, coordination in plant and hormones in animals has been discussed. The well labeled diagrams of Neuron, the nervous cell is discussed in this chapter.

Chapter 8: How do Organisms Reproduce

‘How do Organisms Reproduce?’ is 8th chapter and is all about Reproduction for single-celled organisms as well as multi-celled organisms is discussed. It describes both asexual and sexual modes of Reproduction. Asexual mode of reproduction takes place where single parent is responsible for reproduction. In sexual reproduction both type of reproduction is studied with examples. For sexual modes of reproduction, the reproductive systems of both animals and plants is explained. The human reproductive organs are explained. How human body is ready for the process of reproduction is taught.

Chapter 9: Heredity and Evolution

The chapter tells us about the process of heredity and evolution. Inheritance from the previous generation provides both a common basic body design, and subtle changes in it, for the next generation. Heredity is the process of inheritance of certain traits from one generation to another. Mendal experiments on pea plants has been discussed to understand the process of heredity. DNA is responsible for the transfer of traits from one generation to another. The process of evolution takes place in accordance with area of survival of the organisms. Example of ants has been used to explain the concept. The process of sex determination of child is discussed. The chapter is very interesting and informative.

Chapter 10: Light Reflection and Refraction

In 10th chapter Light, we are going to learn about the two basic phenomena that light undergo-Reflection and refraction. Both are governed by their own laws. It explains laws for each Reflection and Refraction. Reflection by curved surface area is discussed. The terminology related with convex and concave lens is discussed. Next, the lens formula with sign convention is studied. We will know about some uses of spherical mirrors.
Mathematically, the law of Refraction is defined. The concept of refractive index and optical density is defined. The lens, terminology related to it, image formations, and Lens formula is discussed with sign convention.

Chapter 11: Human Eye and Colourful world

In this chapter, we will start with the structure of the human eye and various functions of each part of it. This chapter also explains the various eye defects that might occur. These are defect of vision is studied with their correctness. Latter in the chapter, refraction through a prism, refraction through atmosphere and Scattering of light have been explained. The formation of rainbow has been studied as an example of dispersion of light. The other beautiful phenomena such as blue color of sky, different color of Sun at different times, as well why star twinkles? All this concept will be discussed in this chapter.

Chapter 12: Electricity

Importance of electricity is known to all of us. This phenomena related with flow of electric charge. Electric current is defined as rate of flow of current. Potential difference has been explained as compulsory to flow of current in conductor. Battery is the as source of potential difference. Ohm’s Law defines relationship between potential difference and current. Now after that we will be studying about the concept of resistance and resistivity. These are the properties associated with the material responsible for the restricting the flow of current. After that various combinations of resistors are discussed. Heating effect of current is the last topic. The electrical energy is converted into heat energy. So a wide aspect of electricity is discussed.

Chapter 13: Magnetic Effects of Electric Current

We all had played with magnets. The chapter starts with the magnetic field lines. After that magnetic field lines due to current carrying wire is discussed with the help of right hand thumb rule. Electric motor is based on this theorem. After that force on a current carrying conductor placed in a magnetic field is discussed. The direction of force is given by Fleming’s right hand thumb rule. Electromagnetic Induction is phenomena of induction of current due to change in magnetic field. If a conductor is moved in magnetic field current is generated. The direction is given by right hand thumb rule. Generator, AC and DC are based on this thing.

Chapter 14: Sources of Energy

Our energy requirements increase with our standard of living. In order to fulfil our energy requirements, we try to improve the efficiency of energy usage and also try and exploit new sources of energy. The chapter is all about different sources of energy. Three types of sources of energy are discussed. The first one is conventional sources of energy. These are sources of energy we keep on using from long years. It include fossil fuels, thermal power plant and hydroelectric power plant. These are discussed with advantages and disadvantages. After that, energy sources conventionally used, but improvised due to technology has been discussed. The third category is Non-conventional sources of energy. In this category, we have energy sources like solar energy, nuclear energy, geo-thermal and ocean energy under this category.

Chapter 15: Our Environment

The chapter is to learn the concepts of eco-systems, food chain, and waste management. The various components of an ecosystem are interdependent. The producers make the energy from sunlight available to the rest of the ecosystem. There is a loss of energy as we go from one trophic level to the next, this limits the number of trophic levels in a food-chain. This concept of food chain and food web is discussed. Biological Magnification is the process of accumulation of pesticides or other harmful chemicals.

Chapter 16: Sustainable Management of Natural Resources

In class IX, we have discussed about natural resources. We can use them for longer if they are managed well. It means it should be used properly in order to fulfill the need of present and future, rich and poor by considering the environmental impact. The chapter starts with examples of Ganga action plan where qualitative analysis of river Ganga was done. After that principle of 3R is taught. The way of management of Natural resources like forest, water and coal and petroleum is taught.