online assignment class 10

Assignments for Class 10 th

Download Sample Questions and Assignments for Class 10 with important Topic- Wise Questions. These Sample Questions and Assignments have been prepared as per the syllabus issued by CBSE, KVS and topics given in NCERT Books. Solving this Sample questions and Assignments will help in scoring in more marks in your class tests and school examinations.

Click on links below for Assignments with important questions for Class 10 Mathematics and Science chapter wise.

Assignment for Class 10th Mathematics Topic- Wise- PDF Download

1.real number.

Assignment for Class 10 Mathematics Real Number Assignment 1

2. Polynomials

Assignment for Class 10 Mathematics Polynomials Assignment

3. Linear Equation in Two Variables

Assignment for Class 10 Mathematics Linear Equation in Two Variables Assignment 1

Assignment for class 10 Mathematics Linear Equation in Two Variables Assignment 2

4. Coordinate Geometry

Assignment for Class 10 Mathematics Coordinate Geometry Assignment

5. Quadratic Equation

Assignment for Class 10 Mathematics Quadratic Equation Assignment

6. Arithmetic Progression

Assignment for Class 10 Mathematics Arithmetic Progression Assignment

7. Triangles

Assignment for Class 10 Mathematics Triangles Assignment

8. Coordinate Geometry

9. introduction to trigonometry.

Assignment for Class 10 Mathematics Introduction to Trigonometry Assignment

10. Some Application of Trigonometry

Assignment for Class 10 Mathematics Some Application to Trigonometry Assignment

11. Circles

Assignment for Class 10 Mathematics Circles Assignment

12. Constructions

Assignment for Class 10 Mathematics Constructions Assignment

13. Area Related to Circles

Assignment for Class 10 Mathematics Area Related to Circles Assignment

14. Surface Area and Volume

Assignment for Class 10 Mathematics Surface Area and Volumes Assignment

15. Statistics

Assignment for Class 10 Mathematics Statistics Assignment

16. Probability

Assignment for Class 10 Mathematics Probability Assignment

Assignment for Class 10th Biology Topic- Wise- PDF Download

1.life process.

Assignment for Class 10 Biology Life Process: Nutrition Assignment 1

Assignment for Class 10 Biology Life Process: Nutrition Assignment 2

Assignment for Class 10 Biology Life Process: Nutrition Assignment 3

Assignment for Class 10 Biology Life Process: Transportation Assignment 4

Assignment for Class 10 Biology Life Process: Transportation Assignment 5

Assignment for Class 10 Biology Life Process: Excretion Assignment 6

Assignment for Class 10 Biology Life Process: Respiration Assignment 7

Assignment for Class 10 Biology Life Process: Respiration Assignment 8

Assignment for Class 10th Chemistry Topic- Wise- PDF Download

1.chemical reactions and equation.

Assignment for Class 10 Chemistry Chemical Reactions and Equation Assignment 1

Assignment for Class 10 Chemistry Chemical Reactions and Equation Assignment 2

Assignment for Class 10 Chemistry Chemical Reactions and Equation Assignment 3

2. Acid, Bases and Salt

Assignment for Class 10 Chemistry Acid, Bases and Salt Assignment 1

Assignment for Class 10 Chemistry Acid, Bases and Salt Assignment 2

Assignment for Class 10 Chemistry Acid, Bases and Salt Assignment 3

3. Metals and Non- Metals

Assignment for Class 10 Chemistry Metals and Non-Metals Assignment 1

Assignment for Class 10 Chemistry Metals and Non-Metals Assignment 2

Assignment for Class 10 Chemistry Metals and Non-Metals Assignment 3

Assignment for Class 10 Chemistry Metals and Non-Metals Assignment 4

Assignment for Class 10 Chemistry Metals and Non-Metals Assignment 5

Assignment for Class 10th Physics Topic- Wise- PDF Download

1.electricity.

Assignment for Class 10 Physics Electricity Assignment 1

Assignment for Class 10 Physics Electricity Assignment 2

Assignment for Class 10 Physics Electricity Assignment 3

Assignment for Class 10 Physics Electricity Assignment 4

Assignment for Class 10 Physics Light Assignment 1

Assignment for Class 10 Physics Light Assignment 2

Assignment for Class 10 Physics Light Assignment 3

Assignment for Class 10 Physics Light Assignment 4

Assignment for Class 10 Physics Light: Human Eye Assignment 5

3. Magnetism and EMI

Assignment for Class 10 Physics Magnetism and EMI Assignment 1

Assignment for Class 10 Physics Magnetism and EMI Assignment 2

Assignment for Class 10 Physics Magnetism and EMI Assignment 3

4. Sources and Energy

Assignment for Class 10 Physics Sources of Energy Assignment 1

Assignment for Class 10 Physics Sources of Energy Assignment 2

Advantages of Sample Question Assignments of Class 10

i. By solving Sample Question of Class 10, students can improve their problem solving skills.

ii.Help to develop the subject knowledge.

iii.Solving Sample Question Assignment helps students to promotes hands on learning.

iv. Useful for classroom revision.

v. Practicing Assignments will be useful to test conceptual understanding.

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Class 10 Maths Chapter 1 Assignments

Class 10 Maths Chapter 1 Real Numbers Assignments and Worksheets with solutions and answers updated for academic session 2024-25. All the chapter is divided into 4 assignments taking easy, average, and difficult questions. These set of questions provide a complete revision for the preparation of CBSE and State board exams 2024-25.

CBSE NCERT Class 10 Maths Chapter 1 Real Numbers Assignments

• Class 10 Maths Chapter 1 Real Numbers Assignments 1
• Class 10 Maths Chapter 1 Real Numbers Assignments 1 Solutions
• Class 10 Maths Chapter 1 Real Numbers Assignments 2
• Class 10 Maths Chapter 1 Real Numbers Assignments 2 Solutions
• Class 10 Maths Chapter 1 Real Numbers Assignments 3
• Class 10 Maths Chapter 1 Real Numbers Assignments 3 Solutions
• Class 10 Maths Chapter 1 Real Numbers Assignments 4
• Class 10 Maths Chapter 1 Real Numbers Assignments 4 Solutions
• Class 10 Maths Chapter 1 Real Numbers Solution Page

Download App for Class 10 all Subjects

There are 4 assignments and worksheets. Assignments contains MCQ, Fill in the Blanks, and True false questions. We have covered every topic in the chapter 1 of class 10 Maths. Answers and solutions of each assignment is also given free to use. Students can download these assignments and solve themselves. After solving they can check the answers given on website.

There are some easy questions based on understanding only. Some questions contains tricky methods and 17 percent questions are little bit difficult one. Students need to put effort to explore these questions. These assignments are guarantee to get good marks in exams. The questions based on Case Study will also be included in later chapters.

Download links are given for each assignments. Download and print it and solve it. Match the answers and solutions given on website to know the accuracy. Assignments are deign level wise, so do the first assignment first and the fourth assignment in the last.

Please suggest us, if any, about these assignments, so that we can improve the quality of the contents. We are preparing assignments for all the chapters. Gradually it will be uploaded before the final exams. Students are advised to solve these assignments to prepare the chapter and get confidence in topics.

Are assignments helpful in final exams?

Assignments are helpful in the revision of chapter as well as preparation for exams.

How many assignment should do to prepare the chapter?

At least 3 or 4 assignments which cover the entire chapter will be sufficient to know the chapter well.

How do solve the assignment?

Do yourself each assignment. If a part of assignment is not cleared or creating confusion, discuss with your classmate or teachers and solve it again.

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Assignments For Class 10 Science

Assignments for Class 10 Science have been developed for Standard 10 students based on the latest syllabus and textbooks applicable in CBSE, NCERT and KVS schools. Parents and students can download the full collection of class assignments for class 10 Science from our website as we have provided all topic wise assignments free in PDF format which can be downloaded easily. Students are recommended to do these assignments daily by taking printouts and going through the questions and answers for Grade 10 Science. You should try to do these test assignments on a daily basis so that you are able to understand the concepts and details of each chapter in your Science book and get good marks in class 10 exams.

Important Questions and Answers for Class 10 Science

Experiments in class 10 Science Assignment

Case Study Based MCQ Class 10 Science

Assignments for Class 10 Science as per CBSE NCERT pattern

All students studying in Grade 10 Science should download the assignments provided here and use them for their daily routine practice. This will help them to get better grades in Science exam for standard 10. We have made sure that all topics given in your textbook for Science which is suggested in Class 10 have been covered ad we have made assignments and test papers for all topics which your teacher has been teaching in your class. All chapter wise assignments have been made by our teachers after full research of each important topic in the textbooks so that you have enough questions and their solutions to help them practice so that they are able to get full practice and understanding of all important topics. Our teachers at https://www.assignmentsbag.com have made sure that all test papers have been designed as per CBSE, NCERT and KVS syllabus and examination pattern. These question banks have been recommended in various schools and have supported many students to practice and further enhance their scores in school and have also assisted them to appear in other school level tests and examinations. Its easy to take print of thee assignments as all are available in PDF format.

Some advantages of Free Assignments for Class 10 Science

• Solving Assignments for Science Class 10 helps to further enhance understanding of the topics given in your text book which will help you to get better marks
• By solving one assignments given in your class by Science teacher for class 10 will help you to keep in touch with the topic thus reducing dependence on last minute studies
• You will be able to understand the type of questions which are expected in your Science class test
• You will be able to revise all topics given in the ebook for Class 10 Science as all questions have been provided in the question banks
• NCERT Class 10 Science Workbooks will surely help you to make your concepts stronger and better than anyone else in your class.
• Parents will be able to take print out of the assignments and give to their child easily.

All free Printable practice assignments are in PDF single lick download format and have been prepared by Class 10 Science teachers after full study of all topics which have been given in each chapter so that the students are able to take complete benefit from the worksheets. The Chapter wise question bank and revision assignments can be accessed free and anywhere. Go ahead and click on the links above to download free CBSE Class 10 Science Assignments PDF.

You can download free assignments for class 10 Science from https://www.assignmentsbag.com

You can get free PDF downloadable assignments for Grade 10 Science from our website which has been developed by teachers after doing extensive research in each topic.

On our website we have provided assignments for all subjects in Grade 10, all topic wise test sheets have been provided in a logical manner so that you can scroll through the topics and download the worksheet that you want.

You can easily get question banks, topic wise notes and questions and other useful study material from https://www.assignmentsbag.com without any charge

Yes all test papers for Science Class 10 are available for free, no charge has been put so that the students can benefit from it. And offcourse all is available for download in PDF format and with a single click you can download all assignments.

https://www.assignmentsbag.com is the best portal to download all assignments for all classes without any charges.

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Editing Exercises for Class 10 English

by Meenu Saini | May 2, 2022 | General | 0 comments

Editing Exercises for Class 10 

If you are interested in Editing Exercises for Class 10 can bookmark this page as you will find  the exercises on different English Grammar topics here. By practicing these questions, I am sure you will be one step ahead of other students as your English Grammar will be strong. In case you wish to score 100 percent in English Grammar, you can have a look at our English Grammar Course

What is Editing in English Grammar?

In editing , students have to find the error in the sentence / part of the sentence . The error or wrong word has to be written in the space provided. Then the student has to identify the correct word that should replace the wrong word. This correct word should be grammatically correct . The correct word has to be written in the space provided for.

Topics covered under error detection and correction

A Question of error detection and correction / Editing covers the following topics of English Grammar – 

• Subject Verb Agreement
• Reported Speech
• Passive Voice
• Parts of Speech
• Articles and Determiners

Marking scheme of Editing Questions Each question of editing has two blanks to be filled. The first blank is of the error and the second blank is for the correction. Each blank carries half a mark. So every single question of editing carries a weightage of one mark.

Class 10 Editing Exercises

Here are a few solved examples of editing for better understanding of students-

Q . The following paragraphs have not been edited. There is one error in each line. Identify the error and write its correction against the correct blank number. Remember to underline the correction. The first one has been done for you.

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• NCERT Solutions
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• NCERT Class 10 Science

NCERT Solutions Class 10 Science

Ncert solutions for class 10 science updated for 2023-24 free pdf.

NCERT Solutions Science Class 10 contains very important information that helps the students understand the complex topics and helps them in preparation for the Class 10 board examination. Studying the answers to the questions in the textbook will ensure your understanding of a particular topic and help you determine your strengths and weaknesses. These NCERT Solutions for Class 10 Science are prepared by our subject experts in such a way that the students understand all the topics covered in the syllabus of CBSE 10 Science quite effectively.

Access NCERT Solutions of Class 10 Science all chapters in PDF

The following chapters have been removed from the NCERT Class 10 Science textbook 2023-24. Periodic Classification Of Elements Sources of Energy Sustainable Management of Natural Resources

The Solutions of NCERT Books also helps students to understand the topic thoroughly, which is very important not just from the point of view of the Class 10 examination. Better understanding lays a great foundation for their future studies. Quite often,  questions from textbooks are also asked in competitive examinations. We have covered both in-text and exercise questions in detail.

NCERT Solutions Class 10 Science Book All Chapters Brief:

Chapter 1 – chemical reactions and equations.

The first chapter of Class 10 NCERT Science will teach the students about chemical reactions and how to write equations, how to conduct combination and decomposition reactions and more. In the previous classes, we have learned about physical and chemical changes in matter. Whenever a chemical change occurs, we can say that a chemical reaction has taken place. A complete chemical reaction represents the reactants, products and their physical states symbolically. Students will also study how to write a chemical reaction , which is a symbolic representation of a chemical reaction. The chapter also explains how various chemical equations can be balanced in different states.

The next subtopic teaches various chemical reactions such as Combination Reaction, Decomposition reaction, Displacement Reaction, and Double Displacement Reaction along with various examples and chemical reactions. On the basis of energy, exothermic and endothermic reactions are explained. Exothermic reactions are those reactions in which heat is given out along with the products, and endothermic reactions are those reactions in which energy is absorbed. Then redox reaction is explained, which is a combination of reduction reaction and oxidation reaction. The chapter explains all types of reactions with suitable examples with their respective chemical equations.

Topics Covered in Class 10 Science Chapter 1 Chemical Reactions and Equations :

Chemical reactions: Chemical equation, Balanced chemical equation, implications of a balanced chemical equation, types of chemical reactions: combination, decomposition, displacement, double displacement, precipitation, endothermic exothermic reactions, oxidation and reduction.

Also, access the following resources for Class 10 Chapter 1 Chemical Reactions and Equations, at BYJU’S:

• CBSE Science Notes For Class 10 Chapter 1
• Important Questions for Class 10 Science Chapter 1 – Chemical Reactions And Equations
• NCERT Exemplar Class 10 Science Solutions for Chapter 1 – Chemical Reactions And Equations

Chapter 2 – Acids, Bases and Salts

NCERT Class 10 Science Chapter 2 is all about acids, bases and salts . In previous classes, students have learned that the sour and bitter tastes of food are due to acids and bases, respectively, present in them. We all know that acids are sour in taste and change the colour of blue litmus to red, whereas, bases are bitter and change the colour of the red litmus to blue. In this chapter, we will study the reactions of acids and bases, how acids and bases cancel out each other’s effects and many more interesting things that we use in our day-to-day life. Students will get to understand the chemical properties of acids and bases, how acids and bases react with metals, how  metal carbonates and metal hydrogen carbonates react with acids, how acids and bases react with each other, reaction of metallic oxides with acids and reaction of a non-metallic oxide with base explained with suitable examples and various chemical reactions.

The chapter then explains what all acids and bases have in common with a suitable example which gives the conclusion that acid solution in water conducts electricity. Students get to learn various experiments on what happens to acid or a base in a water solution and how strong are acid or base solutions by making use of universal indication. Along with it, students will get to learn about the importance of pH in everyday life. The chapter ends with a detailed explanation of salt preparation, properties and its uses.

Topics Covered in Class 10 Science Chapter 2 Acids, Bases and Salts :

Acids, bases and salts: Their definitions in terms of furnishing of H+ and OH– ions, General properties, examples and uses, neutralization, concept of pH scale (Definition relating to logarithm not required), importance of pH in everyday life; preparation and uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda and Plaster of Paris.

Also, access the following resources for Class 10 Chapter 2 Acids, Bases and Salts at BYJU’S:

• Acids, Bases and Salts Class 10 Chapter 2 Notes
• Chapter 2 -Acids, Bases and Salts
• Revision Notes For Class 10 Science Chapter 2 – Acids, Bases and Salts
• NCERT Exemplar Class 10 Science Solutions for Chapter 2 – Acids Bases And Salts

Chapter 3 – Metals and Non-metals

In previous classes, students must have learned about various elements that can be classified as metals or non-metals on the basis of their properties. Here in Chapter 3 of Class 10 Science, students will learn about the physical properties of metals and non-metals . Metals are lustrous, malleable, ductile and are good conductors of heat and electricity. They are solid at room temperature, except mercury which is a liquid. The physical properties of metals are explained on various parameters such as ductility, malleability, tensile nature, strength, etc. On the basis of physical properties, metals and non-metals are differentiated. Some of the examples of non-metals are carbon, sulphur, iodine, oxygen, hydrogen, etc. The non-metals are either solids or gases except bromine which is a liquid. Under the subtopic chemical properties of metals, chemical reactions are discussed with oxygen gas, water, acids and other metal salts. The reactions and conditions depend on the reactivity series. The reactivity series tops potassium as the most reactive and gold as the least reactive.

The compounds formed in this manner by the transfer of electrons from a metal to a non-metal are known as ionic compounds or electrovalent compounds. Some of the general properties for ionic compounds are physical nature, melting and boiling points, solubility and conduction of electricity. Metal is extracted from its ore and then refining them for use is known as metallurgy. Metals are refined by using the method of electrolytic refining. The end topic explains corrosion and how it can be prevented.

Topics Covered in Class 10 Science Chapter 3 Metals and Non-metals :

Metals and nonmetals: Properties of metals and non-metals; Reactivity series; Formation and properties of ionic compounds; Basic metallurgical processes; Corrosion and its prevention.

Also, access the following resources for Class 10 Chapter 3 Metals and Non-metals, at BYJU’S:

• CBSE Class 10 Chapter 3 Metals and Non-metals Notes
• Revision Notes For Class 10 Science Chapter 3 – Metals and Non-metals
• NCERT Exemplar Class 10 Science Solutions for Chapter 3 – Metals And Non Metals

Chapter 4 – Carbon and its Compounds

In the previous chapter, we discussed compounds of importance to us. In this chapter, we will study some more interesting compounds and their properties. Also, we shall be learning about carbon, an element which is of immense significance to us in both its elemental form and in the combined form. Carbon is a versatile element that forms the basis for all living organisms and many of the things we use. Covalent bonds are formed by the sharing of electrons between two atoms so that both can achieve a completely filled outermost shell. Carbon forms covalent bonds with itself and other elements such as hydrogen, oxygen, sulphur, nitrogen and chlorine. Organic compounds are categorized into saturated and unsaturated carbon compounds. Saturated compounds are compounds with only a single bond. Unsaturated carbon compounds are compounds with a double or triple bond. The saturated compounds of carbon and hydrogen are methane, ethane, propane, butane, pentane and hexane.

The chapter also explains some of the chemical properties of carbon and its compounds such as combustion, oxidation, addition reaction, substitution reaction. Ethanol and ethanoic acid are carbon compounds of importance in our daily lives. Soap and detergents are studied with their chemical structures and properties and their difference is also discussed. Detergents are usually used to make shampoos and products for cleaning clothes.

Topics Covered in Class 10 Science Chapter 4 Carbon and its Compounds :

Carbon compounds: Covalent bonding in carbon compounds. Versatile nature of carbon. Homologous series. Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes and alkynes), difference between saturated hydro carbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition and substitution reaction). Ethanol and Ethanoic acid (only properties and uses), soaps and detergents.

Also, access the following resources for Class 10 Chapter 4 Carbon and its Compounds at BYJU’S:

• CBSE Class 10 Science Chapter 4 Carbon and its Compounds Notes
• NCERT Exemplar Class 10 Science Solutions for Chapter 4 – Carbon And Its Compounds

Chapter 5 – Periodic Classification of Elements

In Standard 9 we have learned that matter around us is present in the form of elements, compounds and mixtures, and the elements contain atoms of only one type. The early attempts at the classification of elements resulted in grouping the then-known elements as metals and non-metals. Dobereiner grouped the elements into triads and Newlands gave the Law of Octaves. Mendeleev arranged the elements in increasing order of their atomic masses and according to their chemical properties. He even predicted the existence of some yet-to-be-discovered elements on the basis of gaps in his Periodic table. The modern periodic table came into existence. Mendeleev’s Periodic Law was modified, and the atomic number was adopted as the basis of the Modern Periodic Table and the Modern Periodic Law can be stated as follows: ‘Properties of elements are a periodic function of their atomic number’.

In this chapter, Periodic Classification of Elements, elements in the Modern Periodic Table are arranged in 18 vertical columns called groups and 7 horizontal rows called periods. Elements thus arranged show periodicity of properties including atomic size, valency or combining capacity and metallic and non-metallic character. The valency of an element is determined by the number of valence electrons present in the outermost shell of its atom. The term atomic size refers to the radius of an atom.

Also, access the following resources for Class 10 Chapter 5 Periodic Classification of Elements at BYJU’S:

• CBSE Class 10 Chapter 5 Periodic Classification of Elements Notes
• Revision Notes For Class 10 Science Chapter 5 – Periodic Classification of Elements
• Chapter 5 – Periodic Classification of Elements
• NCERT Exemplar Class 10 Science Solutions for Chapter 5 – Periodic Classification Of Elements

Chapter 6 – Life Processes

NCERT Class 10 Science Chapter 6 explains Life Processes . There are six life processes that all living organisms perform. They are movement, respiration, growth, reproduction, excretion and nutrition. The chapter also teaches about nutrition which means the process of taking in food and using it for growth, metabolism and repair. Nutritional stages are ingestion, digestion, absorption, transport, assimilation, and excretion. Nutrition is further divided into Autotrophic Nutrition and Heterotrophic Nutrition. Autotrophic nutrition involves the intake of simple inorganic materials from the environment and using an external energy source like the Sun to synthesize complex high-energy organic material. Heterotrophic nutrition involves the intake of complex material prepared by other organisms. Different types of heterotrophic nutrition are parasitic nutrition, saprophytic nutrition and holozoic nutrition. The next topic is nutrition in human beings. The various steps of nutrition are ingestion, digestion, Oesophagus, stomach, small intestine, bile, absorption, assimilation and egestion. The next subtopic is respiration in which the human respiratory system is explained beautifully. The different elements of the human respiratory system are lungs, bronchi, larynx, pharynx, etc. During the process of respiration, organic compounds such as glucose are broken down to provide energy in the form of ATP. ATP is used to provide energy for other reactions in the cell.

Respiration may be aerobic or anaerobic. Aerobic respiration makes more energy available to the organism. For plants, the soil is the nearest and richest source of raw materials like nitrogen, phosphorus and other minerals. In human beings, the transport of materials such as oxygen, carbon dioxide, food and excretory products is a function of the circulatory system. The circulatory system consists of the heart, blood and blood vessels. In highly differentiated plants, transport of water, minerals, food and other materials is a function of the vascular tissue which consists of xylem and phloem. In human beings, excretory products in the form of soluble nitrogen compounds are removed by the nephrons in the kidneys. Plants use a variety of techniques to get rid of waste material.

Topics Covered in Class 10 Science Chapter 6 Life Processes :

Life processes: ‘Living Being’. Basic concept of nutrition, respiration, transport and excretion in plants and animals.

Also access the following resources for Class 10 Chapter 6 Life Processes at BYJU’S:

• CBSE Class 10 Science Notes Chapter 6 Life Processes
• NCERT Exemplar Class 10 Science Solutions for Chapter 6 – Life Processes

Chapter 7 – Control and Coordination

Chapter 7 of Class 10 teaches about control and coordination , which are the functions of the nervous system and hormones in our bodies. The responses of the nervous system can be classified as a reflex action, voluntary action or involuntary action. The nervous system uses electrical impulses to transmit messages. It gets information from our sense organs and acts through our muscles. Chemical coordination is seen in both plants and animals. Hormones produced in one part of an organism move to another part to achieve the desired effect. A feedback mechanism regulates the action of the hormones.

Topics Covered in Class 10 Science Chapter 7 Control and Coordination :

Control and co-ordination in animals and plants: Tropic movements in plants; Introduction of plant hormones; Control and co-ordination in animals: Nervous system; Voluntary, involuntary and reflex action; Chemical co-ordination: animal hormones.

Also, access the following resources for Class 10 Chapter 7 Control and Coordination at BYJU’S:

• CBSE Class 10 Science Chapter 7 Control and Coordination Notes
• NCERT Exemplar Class 10 Science Solutions for Chapter 7 – Control And Coordination

Chapter 8 – How do Organisms Reproduce

Unlike other life processes, reproduction is not essential to maintain the life of an individual organism. How do Organisms Reproduce chapter involves the creation of a DNA copy and additional cellular apparatus by the cell involved in the process. Depending on their body design, various organisms use different modes of reproduction. In fission, many bacteria and protozoa simply divide into two or more daughter cells. Organisms such as hydra can regenerate if they are broken into pieces. They can also give out buds which mature into new individuals. Roots, stems and leaves of some plants develop into new plants through vegetative propagation. These are examples of asexual reproduction where new generations are created from a single individual. Sexual reproduction involves two individuals for the creation of a new individual. DNA copying mechanisms create variations which are useful for ensuring the survival of the species. Modes of sexual reproduction allow for greater variation to be generated.

Reproduction in flowering plants involves the transfer of pollen grains from the anther to the stigma which is referred to as pollination. This is followed by fertilisation. Changes in the body during puberty, such as an increase in breast size in girls and new facial hair growth in boys, are signs of sexual maturation. The male reproductive system in human beings consists of testes which produce sperms, vas deferens, seminal vesicles, prostate gland, urethra and penis. The female reproductive system in human beings consists of ovaries, fallopian tubes, uterus and vagina. Sexual reproduction in human beings involves the introduction of sperm in the vagina of the female. Fertilisation occurs in the fallopian tube. Contraception to avoid pregnancy can be achieved by the use of condoms, oral pills, copper -T and other methods.

Topics Covered in Class 10 Science Chapter 8 How Do Organisms Reproduce :

Reproduction: Reproduction in animals and plants (asexual and sexual) reproductive health – need and methods of family planning. Safe sex vs HIV/AIDS. Child bearing and women’s health.

Also, access the following resources for Class 10 Chapter 8 How do Organisms Reproduce at BYJU’S:

• CBSE Class 10 Science Chapter 8 How Do Organisms Reproduce Notes
• Chapter 8 -How do Organisms Reproduce?
• NCERT Exemplar Class 10 Science Solutions for Chapter 8 – How Do Organisms Reproduce

Chapter 9 – Heredity And Evolution

In this chapter, we will learn about Heredity and Evolution . We have seen that reproductive processes give rise to new individuals that are similar, but subtly different. We have discussed how some amount of variation is produced even during asexual reproduction. The Rules for the Inheritance of Traits in human beings relate to the fact that both the father and the mother contribute practically equal amounts of genetic material to the child. This means that each trait can be influenced by both paternal and maternal DNA. Sex can be determined by different factors in various species. Changes in the non-reproductive tissues caused by environmental factors are not inheritable. Speciation may take place when the variation is combined with geographical isolation. Evolutionary relationships are traced in the classification of organisms. Tracing common ancestors back in time leads us to the idea that at some point in time, non-living material must have given rise to life.

Evolution can be worked out by the study of not just living species, but also fossils. Complex organs may have evolved because of the survival advantage of even the intermediate stages. Organs or features may be adapted to new functions during the course of evolution. Evolution cannot be said to progress from lower forms to higher forms. Rather, evolution seems to have given rise to more complex body designs even while the simpler body designs continue to flourish. Study of the evolution of human beings indicates that all of us belong to a single species that evolved in Africa and spread across the world in stages.

Topics Covered in Class 10 Science Chapter 9 Heredity and Evolution :

Heredity and Evolution: Heredity; Mendel’s contribution – Laws for inheritance of traits: Sex determination: brief introduction: (topics excluded – evolution; evolution and classification and evolution should not be equated with progress).

Also, access the following resources for Class 10 Chapter 9 Heredity and Evolution, at BYJU’S:

• CBSE Class 10 Science Chapter 9 Heredity And Evolution Notes
• NCERT Exemplar Class 10 Science Solutions for Chapter 9 – Heredity And Evolution

Chapter 10 – Light Reflection and Refraction

In  NCERT Class 10 Science Chapter 10, we will study the phenomena of reflection and refraction of light using the straight-line propagation of light. These basic concepts will help us in the study of some of the optical phenomena in nature. The chapter also discusses the reflection of light by spherical mirrors and refraction of light and their application in real life. Light is a source of energy which generates a sensation of vision in human beings. Light seems to travel in straight lines. The different types of a spherical mirror, convex and concave are taught. The various terms related to spherical mirrors like the centre of curvature, the radius of curvature, etc., focus, pole, etc. are discussed with ray diagrams. Uses of a spherical mirror are also discussed in this chapter. Mirror formula gives the relationship between the object-distance, image-distance, and focal length of a spherical mirror. The focal length of a spherical mirror is equal to half its radius of curvature.

Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light rays toward the normal to the boundary between the two media. The phenomena of refraction can be understood easily by the concepts of the refractive index and optical density. The refractive index of a transparent medium is the ratio of the speed of light in a vacuum to that in the medium. In case of a rectangular glass slab, the refraction takes place at both the air-glass interface and glass-air interface. The emergent ray is parallel to the direction of the incident ray. Lens formula gives the relationship between the object-distance, image-distance, and the focal length of a spherical lens. Power of a lens is the reciprocal of its focal length. The SI unit of power of a lens is dioptre.

Topics Covered in Class 10 Science Chapter 10 Light Reflection and Refraction :

Reflection of light by curved surfaces; Images formed by spherical mirrors, centre of curvature, principal axis, principal focus, focal length, mirror formula (Derivation not required),magnification. Refraction; Laws of refraction, refractive index. Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula(Derivation not required); Magnification. Power of a lens.

Also, access the following resources for Class 10 Chapter 10 Light Reflection and Refraction at BYJU’S:

• CBSE Class 10 Science Chapter 10 Light – Reflection and Refraction Notes
• Chapter 10 -Light: Reflection and Refraction
• NCERT Exemplar Class 10 Science Solutions for Chapter 10 – Light Reflection And Refraction

Chapter 11 – The Human Eye and Colorful World

In the previous chapter, we learnt about light and some of its properties. In this chapter, we will study some of the optical phenomena in nature. The chapter also discusses the rainbow formation, splitting of white light and blue colour of the sky. The human eye is one of the most valuable and sensitive sense organs. It enables us to see the wonderful world and the colours around us. The ability of the eye to focus on both near and distant objects, by adjusting its focal length, is called the accommodation of the eye. The smallest distance, at which the eye can see objects clearly without strain, is called the near point of the eye or the least distance of distinct vision. For a young adult with normal vision, it is about 25cm. The common refractive defects of vision include myopia, hypermetropia and presbyopia. Myopia, short-sightedness-the image of distant objects is focused before the retina is corrected by using a concave lens of suitable power. Hypermetropia (far-sightedness-the image of nearby objects is focussed beyond the retina) is corrected by using a convex lens of suitable power. The eye loses its power of accommodation at old age. The splitting of white light into its component colours is called dispersion. Scattering of light causes the blue colour of the sky and the reddening of the Sun at sunrise and sunset.

Topics Covered in Class 10 Science Chapter 11 The Human Eye and Colorful World :

Functioning of a lens in human eye, defects of vision and their corrections, applications of spherical mirrors and lenses. Refraction of light through a prism, dispersion of light, scattering of light, applications in daily life (excluding colour of the sun at sunrise and sunset).

Also, access the following resources for Class 10 Chapter 11 The Human Eye and Colorful World, at BYJU’S:

• CBSE Class 10 Science Chapter 11 The Human Eye and the Colourful World Notes
• NCERT Exemplar Class 10 Science Solutions for Chapter 11 – Human Eye And Colourful World

Chapter 12 – Electricity

Electricity has an important place in modern society. It is a controllable and convenient form of energy for a variety of uses in homes, schools, hospitals, industries and so on. It is a phenomenon related to the flow of charge. A stream of electrons moving through a conductor constitutes an electric current. Conventionally, the direction of current is taken opposite to the direction of flow of electrons. The SI unit of electric current is ampere. To set the electrons in motion in an electric circuit, we use a cell or a battery. A cell generates a potential difference across its terminals. It is measured in volts (V). Resistance is a property that resists the flow of electrons in a conductor. It controls the magnitude of the current. The SI unit of resistance is Ohm. Ohm’s law: the potential difference across the ends of a resistor is directly proportional to the current through it, provided its temperature remains the same. The resistance of a conductor depends directly on its length, inversely on its areas of cross-section, and also on the material of the conductor. The equivalent resistance of several resistors in series is equal to the sum of their individual resistances. The electrical energy dissipated in a resistor is given by W=V x I x t. The unit of power is watt (W). One watt of power is consumed when 1 A of current flows at a potential difference of 1 V. The commercial unit of electrical energy is kilowatt-hour (kWh). 1kW h = 3,6000,000 J = 3.6 x 10 6 J.

Topics Covered in Class 10 Science Chapter 12 Electricity :

Electric current, potential difference and electric current. Ohm’s law; Resistance, Resistivity, Factors on which the resistance of a conductor depends. Series combination of resistors, parallel combination of resistors and its applications in daily life. Heating effect of electric current and its applications in daily life. Electric power, Interrelation between P, V, I and R.

Also, access the following resources for Class 10 Chapter 12 Electricity at BYJU’S:

• Electricity Class 10 Notes
• NCERT Exemplar Class 10 Science Solutions for Chapter 12 – Electricity

Chapter 13 – Magnetic Effects of Electric Current

In this chapter, students will study magnetic fields and such electromagnetic effects, along with electromagnets and electric motors, which involve the magnetic effect of electric current, and electric generators, which involve the electric effect of moving magnets. A compass needle is a small magnet. Its one end, which points towards the north, is called a north pole, and the other hand, which points towards the south, is called a south pole. A magnetic field exists in the region surrounding a magnet in which the force of the magnet can be detected. Field lines are used to represent a magnetic field. A field line is a path along which a hypothetical free north pole would tend to move. The direction of the magnetic field at a point is given by the direction that a north pole placed at that point would take. Field lines are shown closer together where the magnetic field is greater. A metallic wire carrying an electric current has associated with it a magnetic field. The field lines about the wire consist of a series of concentric circles whose direction is given by the right-hand rule. The pattern of the magnetic field around a conductor due to an electric current flowing through it depends on the shape of the conductor. The magnetic field of a solenoid carrying a current is similar to that of a bar magnet. An electromagnet consists of a core of soft iron wrapped around a coil of insulated copper wire. A current-carrying conductor, when placed in a magnetic field, experiences a force. If the direction of the field and that of the current are mutually perpendicular to each other, then the force acting on the conductor will be perpendicular to both and will be given by Fleming’s left-hand rule. This is the basis of an electric motor. An electric motor is a device that converts electric energy into mechanical energy.

The phenomenon of electromagnetic induction is the production of induced current in a coil placed in a region where the magnetic field changes with time. The magnetic field may change due to relative motion between the coil and a magnet placed near to the coil. If the coil is placed near a current-carrying conductor, the magnetic field may change either due to a change in the current through the conductor or due to the relative motion between the coil and conductor, the magnetic field may change either due to a change in the current through the conductor or due to the relative motion between the coil and the conductor. The direction of the induced current is given by Fleming’s right-hand rule. A generator converts mechanical energy into electrical energy. It works on the basis of electromagnetic induction. There are 2 types of generator AC and DC generator. Fuse is the most important safety device, used for protecting the circuits due to short-circuiting or overloading of the circuits.

Topics Covered in Class 10 Science Chapter 13 Magnetic Effects of Electric Current:

Magnetic effects of current: Magnetic field, field lines, field due to a current carrying conductor, field due to current carrying coil or solenoid; Force on current carrying conductor, Fleming’s Left Hand Rule, Direct current. Alternating current: frequency of AC. Advantage of AC over DC. Domestic electric circuits.

Also, access the following resources for Class 10 Chapter 13 Magnetic Effects of Electric Current at BYJU’S:

• CBSE Class 10 Science Chapter 13 Magnetic Effects of Electric Current Notes
• Revision Notes For Class 10 Science Chapter 13 – Magnetic Effects of Electric Current
• NCERT Exemplar Class 10 Science Solutions for Chapter 13 – Magnetic Effects Of Electric Current

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 discusses different sources of energy, and they are conventional sources of energy, which we keep on using for many years. It includes fossil fuels, thermal power plants and hydropower plants. The advantages and disadvantages are also discussed. After those improvements in the technology for using conventional sources of energy is also discussed such as Biomass and wind energy. Next, students will study the topic of alternative or non-conventional energy resources. It includes solar energy, in which energy is generated through the solar cell and solar panel. Energy can be generated from the sea, such as Tidal energy, wave energy and ocean thermal energy. Energy can also be generated from the earth’s crust, known as geothermal energy . Nuclear energy is energy in the nucleus (core) of an atom. The energy source we select would depend on factors like the ease and cost of extracting energy from the source, the efficiency of the technology available for using that source of energy and the environmental impact of using that source. Many of the sources ultimately derive their energy from the Sun. All the topics are explained with the advantages and disadvantages of it.

Also, access the following resources for Class 10 Chapter 14 Sources of Energy at BYJU’S:

• CBSE Class 10 Science Chapter 14 Sources of Energy Notes
• NCERT Exemplar Class 10 Science Solutions for Chapter 14 – Sources Of Energy

Chapter 15 – Our Environment

This chapter discusses how various components in the environment interact with each other and how we impact the environment. 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. The food-chain is explained in detail with examples according to nature, such as in the forest, in grassland and in the pond. Human activities have an impact on the environment. The use of chemicals like CFCs has endangered the ozone layer. Since the ozone layer protects against the ultraviolet radiation from the Sun, this could damage the environment. The waste we generate may be biodegradable or non-biodegradable . The disposal of the waste we generate is causing serious environmental problems.

Topics Covered in Class 10 Science Chapter 15 Our Environment :

Our environment: Eco-system, Environmental problems, Ozone depletion, waste production and their solutions. Biodegradable and non-biodegradable substances.

Also, access the following resources for Class 10 Chapter 15 Our Environment at BYJU’S:

• CBSE Class 10 Chapter 15 Our Environment Notes
• Revision Notes For Class 10 Science Chapter 15 – Our Environment
• Chapter 15 -Our Environment
• NCERT Exemplar Class 10 Science Solutions for Chapter 15 – Our Environment

Chapter 16 – Sustainable Management of Natural Resources

In the previous class, we have learned about some natural resources like soil, air and water and how various components are cycled over and over again in nature. In this chapter, we will look at some of our resources and how we are using them. Our resources, like forests, wildlife, water, coal and petroleum, need to be used in a sustainable manner. We can reduce pressure on the environment by sincerely applying the maxim of ‘Refuse, Reduce, Reuse, Repurpose and Recycle’ in our lives. Management of forest resources has to take into account the interests of various stakeholders. The harnessing of water resources by building dams has social, economic and environmental implications. Alternatives to large dams exist. These are locale-specific and may be developed so as to give local people control over their local resources. The fossil fuels, coal and petroleum, will ultimately be exhausted. Owing to this and because their combustion pollutes our environment, we need to use these resources judiciously.

Also, access the following resources for Class 10 Chapter 16 Sustainable Management of Natural Resources at BYJU’S:

• CBSE Class 10 Science Chapter 16 Sustainable Management of Natural Resources Notes
• Revision Notes For Class 10 Science Chapter 16 – Sustainable Management of Natural Resources
• NCERT Exemplar Class 10 Science Solutions for Chapter 16 – Management Of Natural Resources

CBSE Class 10 Science Evaluation Scheme (Theory) –

How NCERT Solutions Class 10 Science is helpful while preparing for the exam?

Class 10 Science is an important subject for those students who want to pursue their future studies in this field. To score good marks in this subject, students need to follow the NCERT textbook of Class 10 Science and should be thorough with it. For each chapter, there will be exercise questions for practice which students need to write after they finish completing each topic. It will help them to revise the topics and get to know how much they have understood the concepts. After completing the exercise question, they can refer to the NCERT Solutions of Class 10 Science to cross-check whether they answered all the questions correctly. These solutions work as a guide for the students so that they don’t repeat the mistakes and make sure they answer all the questions correctly.

Preparing for the Class 10 exam needs a lot of attention and commitment as it is considered the turning point of the educational journey. Students need to have an overall understanding of individual chapters, and the process of it demands hard work towards studies and an effective approach to getting through the solutions. A significant role is played by Class 10 NCERT Science Solutions, which helps them to prepare effectively for their Class 10 board exams.

These solutions are based on the CBSE syllabus of Class 10 Science, which provides solutions to all the exercise questions of each chapter mentioned in the NCERT textbook of Class 10 Science. By referring to the solutions, students get to know which topic to focus more upon which will help students to learn faster. Students must know the right technique to answer all the questions given in the NCERT textbook of Class 10 Science . So, in order to help them prepare for their exams, we have provided all the chapter-wise NCERT Solutions. Students can also refer to the NCERT Workbook Solutions Class 10 Science for their further preparation.

Features of NCERT Class 10 Science Solutions

NCERT Science Solutions Class 10 is the best resource study material for students as it delivers a wide range of solutions to all the NCERT questions in the syllabus. It gives detailed solutions to the three dimensions of science, which are Physics, Chemistry and Biology. With the help of the solutions, students can instantly solve their doubts. These solutions are designed as per the NCERT curriculum to help students prepare for their Class 10 board exam. Some of the features of NCERT Solutions of Class 10 Science  are mentioned below:

• The solutions are solved in easy-to-understand language so that students don’t get confused while referring to them.
• The answers are explained elaborately for all the exercise questions mentioned in each chapter.
• Solving these solutions will help students to solve the sample papers as well as the previous year question papers.
• It boosts the student’s confidence level and also helps them work on their weak points.
• All the answers are explained with proper diagrams related to the question.

Other NCERT Resources for Class 10 Science

Students of Class 10 should refer to other study materials like NCERT Class 10 Science Exemplar, NCERT Class 10 Science textbook, and NCERT Class 10 Science Syllabus besides studying from NCERT Class 10 Science Solutions. These study materials are also prepared as per the CBSE Class 10 science syllabus and help them while preparing for the board exams. Students can refer to these study materials after they complete the entire syllabus, which will help in quick revision before the exam.

Below we have provided the links of the other NCERT Resources for Class 10 Science to help you prepare effectively for the Class 10 board exam.

Download NCERT Solutions Class 10 Science Book APP

Students of Class 10 can download the NCERT Class 10 chapter-wise Science solutions from the BYJU’S app, which will help them while preparing for their exam. Apart from the NCERT Solutions for Class 10 , students can also utilize the BYJU’S App for other study materials such as previous year question papers, syllabus, important questions, etc. The BYJU’S App will make your learning easier as you can access it from anywhere you want, by downloading it on your smart device. The solutions of NCERT Class 10 Science are prepared by our highly experienced subject experts, as per the latest CBSE Class 10 Science syllabus.

Frequently Asked Questions on NCERT Solutions for Class 10 Science

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Class 10 Chemistry Assignments

We have provided below free printable Class 10 Chemistry Assignments for Download in PDF. The Assignments have been designed based on the latest NCERT Book for Class 10 Chemistry . These Assignments for Grade 10 Chemistry cover all important topics which can come in your standard 10 tests and examinations. Free printable Assignments for CBSE Class 10 Chemistry , school and class assignments, and practice test papers have been designed by our highly experienced class 10 faculty. You can free download CBSE NCERT printable Assignments for Chemistry Class 10 with solutions and answers. All Assignments and test sheets have been prepared by expert teachers as per the latest Syllabus in Chemistry Class 10. Students can click on the links below and download all Pdf Assignments for Chemistry class 10 for free. All latest Kendriya Vidyalaya Class 10 Chemistry Assignments with Answers and test papers are given below.

Chemistry Class 10 Assignments Pdf Download

We have provided below the biggest collection of free CBSE NCERT KVS Assignments for Class 10 Chemistry . Students and teachers can download and save all free Chemistry assignments in Pdf for grade 10th. Our expert faculty have covered Class 10 important questions and answers for Chemistry as per the latest syllabus for the current academic year. All test papers and question banks for Class 10 Chemistry and CBSE Assignments for Chemistry Class 10 will be really helpful for standard 10th students to prepare for the class tests and school examinations. Class 10th students can easily free download in Pdf all printable practice worksheets given below.

Topicwise Assignments for Class 10 Chemistry Download in Pdf

Advantages of Class 10 Chemistry Assignments

• As we have the best and largest collection of Chemistry assignments for Grade 10, you will be able to easily get full list of solved important questions which can come in your examinations.
• Students will be able to go through all important and critical topics given in your CBSE Chemistry textbooks for Class 10 .
• All Chemistry assignments for Class 10 have been designed with answers. Students should solve them yourself and then compare with the solutions provided by us.
• Class 10 Students studying in per CBSE, NCERT and KVS schools will be able to free download all Chemistry chapter wise worksheets and assignments for free in Pdf
• Class 10 Chemistry question bank will help to improve subject understanding which will help to get better rank in exams

Frequently Asked Questions by Class 10 Chemistry students

At https://www.cbsencertsolutions.com, we have provided the biggest database of free assignments for Chemistry Class 10 which you can download in Pdf

We provide here Standard 10 Chemistry chapter-wise assignments which can be easily downloaded in Pdf format for free.

You can click on the links above and get assignments for Chemistry in Grade 10, all topic-wise question banks with solutions have been provided here. You can click on the links to download in Pdf.

We have provided here topic-wise Chemistry Grade 10 question banks, revision notes and questions for all difficult topics, and other study material.

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