The NCERT Solutions for Science Class 10 are a valuable resource, providing crucial information that aids students in comprehending complex topics and prepares them for the Class 10 board examination.
By studying the answers to the textbook questions, you can enhance your grasp of specific subjects and identify your strengths and weaknesses. Our team of subject experts has meticulously prepared these NCERT Solutions, ensuring that students can easily grasp all the topics included in the CBSE 10 Science syllabus.
NCERT Solutions Science Class 10
NCERT Solutions Science Class 10
- Chapter 1 – Chemical Reactions and Equations
- Chapter 2 – Acids, Bases and Salts
- Chapter 3 – Metals and Non-metals
- Chapter 4 – Carbon and Its Compounds
- Chapter 5 – Life Processes
- Chapter 6 – Control and Coordination
- Chapter 7 – How Do Organisms Reproduce?
- Chapter 8 – Heredity and Evolution
- Chapter 9 – Light Reflection and Refraction
- Chapter 10 – Human Eye and Colorful World
- Chapter 11 – Electricity
- Chapter 12 – Magnetic Effects of Electric Current
- Chapter 13 – Our Environment
These Solutions play a crucial role in helping students achieve a thorough understanding of the topics, which is not only vital for the Class 10 examination but also lays a strong foundation for their future studies.
Additionally, these solutions prove beneficial as textbook questions are frequently included in competitive examinations. We have provided detailed explanations for both in-text and exercise questions, ensuring comprehensive coverage for effective learning.
Solution for NCERT Science Class 10: All Chapter Brief
Chapter 1 – Chemical Reactions and Equations
The initial chapter of Class 10 NCERT Science delves into chemical reactions, teaching students about writing equations, conducting combination and decomposition reactions, and more. It builds upon the concepts of physical and chemical changes in matter, where a chemical change signifies a chemical reaction taking place. The chapter emphasizes representing complete chemical reactions symbolically, encompassing the reactants, products, and their physical states.
Students will also learn how to express chemical reactions through symbolic representations, understanding how to balance various chemical equations in different states. The subsequent section covers several types of chemical reactions, including Combination Reactions, Decomposition Reactions, Displacement Reactions, and Double Displacement Reactions. Each type is accompanied by relevant examples and chemical equations.
The chapter further explores exothermic and endothermic reactions based on energy considerations. Exothermic reactions release heat along with the products, while endothermic reactions absorb energy during the process. Additionally, the concept of redox reactions is elucidated, encompassing both reduction and oxidation reactions in combination. Throughout the chapter, a variety of reaction types are thoroughly explained, accompanied by appropriate examples and their respective chemical equations.
Topics Covered in Class 10 Science Chapter 1 Chemical Reactions and Equations :
The topics covered in this context include:
1. Chemical Equation
2. Balanced Chemical Equation
3. Implications of a Balanced Chemical Equation
4. Types of Chemical Reactions:
a. Combination Reaction
b. Decomposition Reaction
c. Displacement Reaction
d. Double Displacement Reaction
e. Precipitation Reaction
f. Endothermic Reactions
g. Exothermic Reactions
h. Oxidation Reaction
i. Reduction Reaction
Chapter 2 – Acids, Bases and Salts
NCERT Class 10 Science Chapter 2 explores the fascinating world of acids, bases, and salts. Building upon previous knowledge, students discover that the sour taste of food is due to acids, while the bitter taste is attributed to bases. Acids turn blue litmus to red, whereas bases change red litmus to blue. This chapter dives into the reactions of acids and bases, including how they neutralize each other’s effects, and their practical applications in everyday life.
Students delve into the chemical properties of acids and bases, investigating their reactions with metals, metal carbonates, and metal hydrogen carbonates. The chapter further explores the intriguing interactions between acids and bases, as well as the reactions of metallic oxides with acids and non-metallic oxides with bases, illustrated with apt examples and chemical equations.
A deeper understanding is gained by examining common traits shared by acids and bases, exemplified by their ability to conduct electricity when dissolved in water. Through various experiments, students ascertain the strength of acid or base solutions using universal indicator. The significance of pH in daily life is also highlighted.
Concluding the chapter, students are introduced to the preparation, properties, and practical uses of salts. Topics covered include the definitions of acids, bases, and salts in terms of H+ and OH– ions, their general properties, examples, and applications.
The concept of neutralization and the pH scale (without requiring logarithm-based definitions) are also discussed. Moreover, the preparation and uses of essential substances like Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda, and Plaster of Paris are elaborated upon.
Chapter 3 – Metals and Non-metals
Chapter 3 of Class 10 Science delves into the fascinating realm of metals and non-metals, building upon the knowledge students have gained about their classification based on properties. The chapter explores the physical properties of metals, which include luster, malleability, ductility, and excellent conductivity of heat and electricity. Most metals are solids at room temperature, except for mercury, which is a liquid.
The physical properties are further elaborated on various parameters such as ductility, malleability, tensile strength, and more, enabling differentiation between metals and non-metals. Notable examples of non-metals are carbon, sulphur, iodine, oxygen, and hydrogen, with bromine being the exception, existing in a liquid state.
Chemical properties of metals are then introduced, showcasing their reactions with oxygen gas, water, acids, and other metal salts, all dependent on the reactivity series. The series lists potassium as the most reactive and gold as the least reactive.
When electrons are transferred from a metal to a non-metal, resulting compounds are known as ionic compounds or electrovalent compounds. General properties of ionic compounds are explored, including their physical nature, melting and boiling points, solubility, and ability to conduct electricity.
Metallurgy, the extraction of metal from ores and refining them for use, is covered, with emphasis on the method of electrolytic refining. The chapter concludes by shedding light on corrosion and its prevention.
Topics Covered in Class 10 Science Chapter 3 Metals and Non-metals:
1. Properties of metals and non-metals
2. Reactivity series
3. Formation and properties of ionic compounds
4. Basic metallurgical processes
5. Corrosion and its prevention.
Chapter 4 – Carbon and its Compounds
In the previous chapter, we explored significant compounds, and in this chapter, we delve into more intriguing compounds and their properties. Carbon, a crucial element, holds immense importance in its elemental form and when combined with other elements.
It serves as the foundation for all living organisms and many everyday items. Covalent bonds are formed when electrons are shared between atoms, ensuring both achieve a fully filled outermost shell. Carbon readily forms covalent bonds with itself and various elements like hydrogen, oxygen, sulphur, nitrogen, and chlorine.
Organic compounds fall into two categories: saturated and unsaturated carbon compounds. Saturated compounds contain only single bonds, while unsaturated compounds have double or triple bonds. Notable examples of saturated compounds of carbon and hydrogen include methane, ethane, propane, butane, pentane, and hexane.
The chapter further explores the chemical properties of carbon and its compounds, encompassing combustion, oxidation, addition reactions, and substitution reactions. Ethanol and ethanoic acid, vital carbon compounds in our daily lives, are discussed along with their properties and uses.
Additionally, the study of soaps and detergents includes an examination of their chemical structures, properties, and the distinctions between them. Detergents are commonly used in shampoos and cleaning products.
Topics Covered in Class 10 Science Chapter 4 Carbon and its Compounds:
1. Carbon compounds: Covalent bonding in carbon compounds.
2. Versatile nature of carbon.
3. Homologous series.
4. Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes, and alkynes).
5. Difference between saturated hydrocarbons and unsaturated hydrocarbons.
6. Chemical properties of carbon compounds (combustion, oxidation, addition, and substitution reactions).
7. Ethanol and Ethanoic acid (properties and uses only).
8. Soaps and detergents.
Chapter 5 – Life Processes
In NCERT Class 10 Science Chapter 5, we delve into the essential “Life Processes” that all living organisms undertake. There are six fundamental life processes: movement, respiration, growth, reproduction, excretion, and nutrition.
The chapter extensively covers the concept of nutrition, which involves the intake of food for growth, metabolism, and repair. The nutritional stages include ingestion, digestion, absorption, transport, assimilation, and excretion.
Nutrition is further classified into Autotrophic Nutrition, where simple inorganic materials are taken from the environment, and energy from the Sun is used to synthesize complex organic substances. Heterotrophic Nutrition, on the other hand, involves the intake of complex materials prepared by other organisms, including parasitic nutrition, saprophytic nutrition, and holozoic nutrition.
The chapter then focuses on human nutrition, detailing the steps of ingestion, digestion, and absorption through the esophagus, stomach, small intestine, bile, etc., followed by assimilation and egestion.
The topic of respiration covers the human respiratory system, encompassing lungs, bronchi, larynx, pharynx, etc. During respiration, organic compounds like glucose are broken down to provide energy in the form of ATP, which fuels other cellular reactions.
Respiration can be aerobic or anaerobic, with aerobic respiration yielding more energy. For plants, the soil serves as the primary source of raw materials like nitrogen and phosphorus.
In human beings, the circulatory system, comprising the heart, blood, and blood vessels, facilitates the transport of essential materials like oxygen, carbon dioxide, food, and excretory products. For highly differentiated plants, the vascular tissue (xylem and phloem) takes care of transporting water, minerals, food, and other substances.
In human beings, the excretory products, particularly soluble nitrogen compounds, are removed by the nephrons in the kidneys. Different techniques are employed by plants to dispose of waste materials.
Topics Covered in Class 10 Science Chapter 5 Life Processes:
1. Life processes: ‘Living Being.’
2. Basic concept of nutrition, respiration, transport, and excretion in plants and animals.
Chapter 6 – Control and Coordination
Class 10, Chapter 6, delves into the fascinating topic of “Control and Coordination,” focusing on the essential functions of the nervous system and hormones in our bodies. The nervous system and hormones work in tandem to ensure effective responses.
The nervous system categorizes responses as reflex actions, voluntary actions, or involuntary actions. Through electrical impulses, the nervous system transmits messages, receiving information from our sense organs and effecting actions through our muscles.
Both plants and animals exhibit chemical coordination. In plants, tropic movements are observed, and the chapter introduces the concept of plant hormones. In animals, the nervous system plays a crucial role in control and coordination.
It governs voluntary, involuntary, and reflex actions. Furthermore, the chapter explores the fascinating world of animal hormones, which are chemical messengers produced in one part of an organism but exert their influence in another part to achieve the desired effect. A feedback mechanism regulates the actions of these hormones.
Topics Covered in Class 10 Science Chapter 6 Control and Coordination:
1. Control and co-ordination in animals and plants: Tropic movements in plants.
2. Introduction of plant hormones.
3. Control and co-ordination in animals: Nervous system.
4. Voluntary, involuntary, and reflex action.
5. Chemical co-ordination: animal hormones.
Chapter 7 – How do Organisms Reproduce
In the chapter “How Do Organisms Reproduce,” it is evident that unlike other life processes, reproduction is not essential for an individual organism’s survival. The process of reproduction involves creating a copy of DNA and additional cellular components in the cell. Different organisms employ various modes of reproduction based on their body design.
In fission, many bacteria and protozoa simply divide into multiple daughter cells. Some organisms like hydra can regenerate when broken into pieces and can also produce buds that develop into new individuals. Certain plants reproduce asexually through vegetative propagation, where new plants grow from roots, stems, or leaves of existing ones.
On the other hand, sexual reproduction involves two individuals coming together to create a new individual. This process introduces variations through DNA copying mechanisms, aiding in the survival of the species. Sexual reproduction allows for a greater range of variations to be generated.
In the context of flowering plants, reproduction involves pollination, where pollen grains are transferred from the anther to the stigma, followed by fertilization. Puberty brings about significant changes in the body, such as breast growth in girls and the appearance of facial hair in boys, signifying sexual maturation.
Human beings have distinct male and female reproductive systems. The male reproductive system includes testes that produce sperm, vas deferens, seminal vesicles, prostate gland, urethra, and penis. The female reproductive system comprises ovaries, fallopian tubes, uterus, and vagina. Sexual reproduction in humans involves the introduction of sperm into the female vagina, with fertilization occurring in the fallopian tube.
The chapter also discusses the importance of reproductive health and family planning methods. Contraceptive measures such as condoms, oral pills, copper-T, and others help in avoiding pregnancy. Topics like safe sex, HIV/AIDS, childbearing, and women’s health are also addressed.
Topics Covered in Class 10 Science Chapter 7 How Do Organisms Reproduce:
1. Reproduction: Reproduction in animals and plants (asexual and sexual).
2. Reproductive health – the need and methods of family planning.
3. Safe sex vs. HIV/AIDS.
4. Childbearing and women’s health.
Chapter 8 – Heredity And Evolution
In this chapter, we will explore the intriguing concepts of Heredity and Evolution. Reproductive processes give rise to new individuals that are similar, yet subtly different due to the presence of variation, even in asexual reproduction.
The Rules for the Inheritance of Traits in human beings are influenced by both paternal and maternal DNA, as both parents contribute nearly equal amounts of genetic material to the child. The determination of sex varies across different species. However, changes caused by environmental factors in non-reproductive tissues are not inheritable.
Speciation can occur when variation is combined with geographical isolation, leading to the formation of new species. The classification of organisms helps trace evolutionary relationships. Going back in time to trace common ancestors suggests that life might have originated from non-living materials.
The study of evolution involves not only living species but also fossils. Complex organs may have evolved due to the survival advantage of intermediate stages. Over time, organs or features can adapt to new functions during the process of evolution.
It is essential to understand that evolution does not necessarily progress from lower to higher forms; rather, it results in the emergence of more complex body designs while simpler ones continue to thrive. The study of human evolution reveals that all humans belong to a single species that originated in Africa and gradually spread across the world.
Topics Covered in Class 10 Science Chapter 8 Heredity and Evolution:
1. Heredity and Evolution: Heredity.
2. Mendel’s contribution – Laws for the inheritance of traits.
3. Sex determination: a brief introduction.
(Note: Topics excluded – Evolution, Evolution and Classification, and Evolution should not be equated with progress.)
Chapter 9 – Light Reflection and Refraction
In NCERT Class 10 Science Chapter 9, we delve into the fascinating phenomena of reflection and refraction of light, exploring the straight-line propagation of light. Understanding these fundamental concepts will enable us to comprehend various optical phenomena occurring in nature. The chapter also covers the reflection of light by spherical mirrors and the refraction of light, along with their practical applications.
Light, a powerful source of energy, allows us to experience the sensation of vision. It appears to travel in straight lines. We learn about the different types of spherical mirrors: convex and concave, and explore terms related to spherical mirrors, such as the center of curvature, radius of curvature, focus, pole, etc., through ray diagrams. The chapter discusses the various uses of spherical mirrors as well.
The mirror formula establishes the relationship between object distance, image distance, and the focal length of a spherical mirror. Remarkably, the focal length of a spherical mirror is equal to half its radius of curvature.
Moving on to refraction, we learn that it is the bending of a wave when it enters a medium where its speed differs. When light passes from a fast medium to a slow medium, it bends the light rays toward the normal to the boundary between the two media. We understand refraction better by exploring concepts like 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 its speed in that medium.
In the case of a rectangular glass slab, refraction occurs at both the air-glass interface and glass-air interface. The emergent ray is parallel to the incident ray. The lens formula establishes the relationship between object distance, image distance, and the focal length of a spherical lens. The power of a lens is the reciprocal of its focal length, with the unit of power being dioptre.
Topics Covered in Class 10 Science Chapter 9 Light Reflection and Refraction:
This chapter deals with the intriguing topics of reflection and refraction of light by curved surfaces, as well as the formation of images by spherical mirrors. We explore essential terms such as the center of curvature, principal axis, principal focus, focal length, mirror formula (derivation not required), and magnification.
Next, we delve into the phenomenon of refraction and the laws governing it, including the concept of refractive index.
Furthermore, we study the refraction of light by spherical lenses, understanding how images are formed in the process. We cover the lens formula (derivation not required) and discuss magnification. Additionally, we learn about the power of a lens, which is a crucial measure related to its optical properties.
Throughout this chapter, we explore the fascinating behavior of light, uncovering the principles of reflection and refraction and how they play a crucial role in understanding various optical phenomena in our surroundings.
Chapter 10 – The Human Eye and Colorful World
In the previous chapter, we acquired knowledge about light and some of its properties. In this chapter, our focus shifts to exploring various optical phenomena occurring in nature. We delve into the formation of rainbows, the splitting of white light, and the reason behind the blue color of the sky.
The human eye, an invaluable and sensitive sense organ, grants us the ability to perceive the captivating world and its vibrant colors. The eye achieves this by adjusting its focal length to focus on both nearby and distant objects, a phenomenon known as accommodation.
The near point of the eye, or the least distance of distinct vision, refers to the smallest distance at which objects can be seen clearly without any strain. For a young adult with normal vision, this distance is approximately 25 cm.
However, some individuals experience common refractive defects of vision, such as myopia (short-sightedness) and hypermetropia (far-sightedness). These conditions can be corrected using suitable concave or convex lenses, respectively. Additionally, as the eye ages, it loses its power of accommodation, a condition known as presbyopia.
The chapter also explores the dispersion of white light into its component colors and the phenomenon of scattering, which gives rise to the blue color of the sky and the reddening of the Sun during sunrise and sunset.
Topics Covered in Class 10 Science Chapter 10 The Human Eye and Colorful World:
1. Functioning of a lens in the human eye.
2. Defects of vision and their corrections.
3. Applications of spherical mirrors and lenses.
4. Refraction of light through a prism.
5. Dispersion of light.
6. Scattering of light.
(Note: Applications in daily life, such as the color of the sun at sunrise and sunset, are excluded from this chapter.)
Chapter 11 – Electricity
Electricity holds a crucial role in modern society, providing a controllable and convenient form of energy for various applications in homes, schools, hospitals, industries, and more. It is a phenomenon linked to the flow of electric charge. When a stream of electrons moves through a conductor, it constitutes an electric current. Conventionally, the direction of current is considered opposite to the direction of electron flow. The standard unit of electric current is the ampere (A).
To set electrons in motion within an electric circuit, we utilize a cell or battery, which generates a potential difference across its terminals, measured in volts (V). Resistance is a property that opposes the flow of electrons in a conductor, controlling the magnitude of the current. The unit of resistance is the ohm (Ω).
Ohm’s law states that the potential difference across the ends of a resistor is directly proportional to the current passing through it, provided its temperature remains constant. The resistance of a conductor depends on its length, inversely on its cross-sectional area, and also on the material of the conductor.
In circuits with several resistors in series, the equivalent resistance is the sum of their individual resistances. The electrical energy dissipated in a resistor is given by the formula W = V × I × t, where W represents energy in joules, V is the potential difference in volts, I is the current in amperes, and t is the time in seconds.
Power is the rate at which energy is consumed, and its unit is the watt (W). One watt of power is consumed when 1 A of current flows at a potential difference of 1 V. For commercial purposes, electrical energy is measured in kilowatt-hours (kWh), where 1 kWh is equivalent to 3.6 x 10^6 joules.
Topics Covered in Class 10 Science Chapter 11 Electricity:
1. Electric current, potential difference, and electric current.
2. Ohm’s law; Resistance, Resistivity, Factors affecting the resistance of a conductor.
3. Series combination of resistors, parallel combination of resistors, and their applications in daily life.
4. Heating effect of electric current and its applications in daily life.
5. Electric power, Interrelation between power (P), potential difference (V), current (I), and resistance (R).
Chapter 12 – Magnetic Effects of Electric Current
In this chapter, students will explore magnetic fields and various electromagnetic effects, including electromagnets and electric motors that involve the magnetic effect of electric current, and electric generators that involve the electric effect of moving magnets.
A compass needle acts as a small magnet, with one end pointing towards the north (north pole) and the other towards the south (south pole). Surrounding a magnet is a magnetic field, where the force of the magnet can be detected.
Magnetic field lines are used to represent this field, with the direction given by the right-hand rule. A metallic wire carrying an electric current generates a magnetic field around it, depicted as concentric circles. The magnetic field’s pattern depends on the shape of the conductor. The magnetic field of a solenoid carrying current is similar to that of a bar magnet.
An electromagnet consists of a soft iron core wrapped with insulated copper wire. When a current-carrying conductor is placed in a magnetic field, it experiences a force, with its direction determined by Fleming’s left-hand rule. This principle forms the basis of electric motors, devices that convert electric energy into mechanical energy.
Electromagnetic induction is the production of induced current in a coil placed in a region where the magnetic field changes with time. This can occur due to relative motion between the coil and a nearby magnet or a current-carrying conductor.
The direction of the induced current is determined by Fleming’s right-hand rule. A generator is an example of a device that converts mechanical energy into electrical energy based on electromagnetic induction. There are two types of generators: AC and DC generators.
Lastly, the chapter covers the importance of fuses as crucial safety devices used to protect circuits from short-circuiting or overloading.
Topics Covered in Class 10 Science Chapter 12 Magnetic Effects of Electric Current:
1. Magnetic effects of current: Magnetic field, field lines, field due to a current-carrying conductor, field due to current-carrying coil or solenoid.
2. Force on a current-carrying conductor, Fleming’s Left Hand Rule, Direct current.
3. Alternating current: frequency of AC, Advantage of AC over DC.
4. Domestic electric circuits.
Chapter 13 – Our Environment
In this chapter, we explore the intricate interactions between various components of the environment and how our actions impact it. Ecosystems comprise interdependent components, with producers harnessing sunlight to provide energy for the entire ecosystem.
However, there is a loss of energy as we move up the trophic levels, limiting the number of levels in a food chain. We delve into the food chain with detailed examples from nature, such as those found in forests, grasslands, and ponds.
Human activities play a significant role in influencing the environment. The use of chemicals like CFCs has endangered the ozone layer, which shields us from harmful ultraviolet radiation. Consequently, this poses a threat to the environment. Additionally, the waste we generate can be classified as biodegradable or non-biodegradable, and its improper disposal leads to serious environmental issues.
Topics Covered in Class 10 Science Chapter 13 Our Environment:
1. Our environment: Eco-system, Environmental problems, Ozone depletion, waste production, and their solutions.
2. Biodegradable and non-biodegradable substances.
The chapter sheds light on the delicate balance within ecosystems and the importance of understanding and addressing environmental problems to safeguard our planet for future generations.
Other Chapters Removed From the NCERT Class 10 Science
Chapter – Periodic Classification of Elements (Old Chapter No. 5)
In the previous Standard 9, we learned that matter exists in the forms of elements, compounds, and mixtures. Elements consist of atoms of a single type. Early attempts at classifying elements led to grouping them as metals and non-metals.
Dobereiner organized elements into triads, while Newlands proposed the Law of Octaves. However, it was Mendeleev who made significant strides by arranging elements based on increasing atomic masses and chemical properties.
His Periodic Table even predicted the existence of yet-to-be-discovered elements, filling gaps in the table. Subsequently, the Modern Periodic Table was established, with Mendeleev’s Periodic Law modified to adopt atomic number as the basis. The Modern Periodic Law states that “Properties of elements are a periodic function of their atomic number.”
In this chapter, “Periodic Classification of Elements,” the Modern Periodic Table arranges elements into 18 vertical columns known as groups and 7 horizontal rows known as periods.
This arrangement demonstrates the periodicity of properties, including atomic size, valency or combining capacity, and metallic and non-metallic character.
An element’s valency is determined by the number of valence electrons in its outermost shell. The term “atomic size” refers to the radius of an atom.
Chapter – Sources of Energy (Old Chapter No. 14)
As our standard of living increases, so do our energy requirements. To meet these demands, we strive to enhance the efficiency of energy usage and explore new energy sources. This chapter delves into different sources of energy, beginning with conventional sources that have been in use for many years.
These include fossil fuels, thermal power plants, and hydropower plants. We examine the advantages and disadvantages associated with these sources and explore technological improvements such as Biomass and wind energy in utilizing conventional sources more efficiently.
Moving on, we study alternative or non-conventional energy resources. Solar energy is generated through solar cells and panels, tapping into the Sun’s abundant energy. Additionally, energy can be harnessed from the sea through sources like Tidal energy, wave energy, and ocean thermal energy. Geothermal energy is derived from the Earth’s crust, while nuclear energy lies within the nucleus of an atom.
Selecting an energy source depends on various factors, such as the ease and cost of extraction, the efficiency of available technology, and the environmental impact. It is worth noting that many energy sources ultimately derive their energy from the Sun.
Throughout the chapter, each energy source is thoroughly explained, highlighting its advantages and disadvantages, empowering students to make informed decisions about energy usage and its impact on the environment.
Chapter –
Chapter – Sustainable Management of Natural Resources (Old Chapter No. 16)
In the previous class, we explored the significance of natural resources such as soil, air, and water, and how their components undergo continuous cycles in nature. In this chapter, we will examine various resources we possess and their utilization.
It is crucial to use resources like forests, wildlife, water, coal, and petroleum in a sustainable manner. To alleviate pressure on the environment, we should earnestly adopt the principles of ‘Refuse, Reduce, Reuse, Repurpose, and Recycle’ in our daily lives.
The management of forest resources must consider the interests of diverse stakeholders. The development of water resources through dam construction has social, economic, and environmental implications. However, alternatives to large dams exist, which can be tailored to local requirements, empowering communities with control over their resources.
As fossil fuels like coal and petroleum will eventually be depleted and their combustion negatively affects the environment, it is imperative to use these resources judiciously.
CBSE Class 10 Science Evaluation Scheme (Theory) –
| Unite No. | Chapters Include | Marks |
|---|---|---|
| 1 | Chemical Substances – Nature and Behaviour: Chapter 1, 2, 3 and 4 | 25 |
| 2 | World of Living: Chapter 6, 7, 8 and 9 | 25 |
| 3 | Natural Phenomena: Chapter 10 and 11 | 12 |
| 4 | Effects of Current: Chapter 12 and 13 | 13 |
| 5 | Natural Resources: Chapter 15 | 05 |
| Total Theory | 80 | |
| Internal Assessment | 20 | |
| Grand Total | 100 |
How These Solutions Helpful for Science Class 10 Students?
Class 10 Science holds immense significance for students aspiring to pursue future studies in this field. Achieving good marks in this subject requires thorough understanding and practice with the NCERT textbook of Class 10 Science.
After studying each chapter, students must diligently attempt the exercise questions to reinforce their knowledge and assess their grasp of the concepts. To verify their answers, they can rely on the NCERT Solutions of Class 10 Science, which serve as a helpful guide to rectify errors and ensure accurate responses.
Preparing for the Class 10 board exams demands unwavering dedication and commitment, as this phase marks a crucial turning point in one’s educational journey. Students should strive for a comprehensive understanding of individual chapters and adopt effective study approaches to utilize the solutions efficiently. The Class 10 NCERT Science Solutions play a vital role in preparing students effectively for their exams.
These solutions align with the CBSE syllabus of Class 10 Science, covering all exercise questions from the NCERT textbook. By consulting the solutions, students can identify areas that require more attention, enabling faster learning.
Mastering the right techniques to answer questions in the NCERT textbook is essential, and our chapter-wise NCERT Solutions are designed to assist students in this regard. Additionally, students can enhance their preparation by referring to the NCERT Workbook Solutions Class 10 Science.
With these comprehensive resources at their disposal, students can boost their confidence and excel in their Class 10 Science board exams, paving the way for a successful academic journey ahead.
Features of NCERT Class 10 Science Solutions
The NCERT Science Solutions Class 10 serves as the ideal study material for students, providing comprehensive solutions to all the NCERT questions in the syllabus. Covering the three dimensions of science – Physics, Chemistry, and Biology – these solutions offer detailed explanations and facilitate instant resolution of doubts. Tailored to the NCERT curriculum, these solutions effectively prepare students for their Class 10 board exams. Some key features of the NCERT Solutions of Class 10 Science are as follows:
1. Clarity and Simplicity: The solutions are presented in an easy-to-understand language, ensuring that students can grasp the concepts without confusion.
2. Elaborate Explanations: Each exercise question in every chapter is accompanied by detailed explanations, providing a thorough understanding of the topics.
3. Exam Preparation: By practicing these solutions, students gain the confidence to tackle sample papers and previous year question papers effectively.
4. Confidence Building: Working through the solutions enables students to identify and work on their weak areas, bolstering their confidence.
5. Visual Support: The answers are supplemented with relevant diagrams, enhancing comprehension and reinforcing key concepts.
With these valuable features, the NCERT Science Solutions Class 10 become an indispensable tool for students, empowering them to excel in their studies and excel in their Class 10 board exams.
Other NCERT Resources for Class 10 Science
For Class 10 students, it is beneficial to explore additional study materials such as NCERT Class 10 Science Exemplar, the NCERT Class 10 Science textbook, and the NCERT Class 10 Science Syllabus alongside utilizing NCERT Class 10 Science Solutions.
These resources are meticulously aligned with the CBSE Class 10 science syllabus and provide valuable assistance during board exam preparation. After completing the entire syllabus, students can refer to these study materials for quick revision before the exams, enhancing their overall understanding and performance.
Frequently Asked Questions on NCERT Solutions for Class 10 Science
What are Class 10 Science Solutions, and how can they help students in their exam preparation?
Class 10 Science Solutions are comprehensive study materials that provide detailed answers to the questions in the NCERT Class 10 Science textbook. They are prepared in accordance with the CBSE syllabus and cover all the essential topics in Physics, Chemistry, and Biology. These solutions serve as a valuable resource for students during their exam preparation.
Firstly, Class 10 Science Solutions offer clear and easy-to-understand explanations, helping students grasp complex concepts effectively. They provide step-by-step solutions, enabling students to understand the logical reasoning behind each answer.
Secondly, these solutions act as a self-assessment tool. Students can practice with the solutions to verify their answers and identify areas where they need improvement.
Thirdly, the solutions instill confidence in students by offering comprehensive coverage of the syllabus and ample practice exercises. This ensures that students are well-prepared for their Class 10 board exams.
In summary, Class 10 Science Solutions are a valuable aid for students, enhancing their understanding of scientific concepts, boosting their confidence, and guiding them towards exam success.
How are the NCERT Class 10 Science Solutions different from other study materials?
NCERT Class 10 Science Solutions are distinct from other study materials in several ways, making them a preferred choice for students:
1. Syllabus Alignment: NCERT Solutions are specifically designed as per the CBSE Class 10 Science syllabus, ensuring complete coverage of topics and concepts prescribed by the board.
2. Authenticity: NCERT Solutions are published by the official body responsible for curriculum development in India, making them reliable and accurate sources of information.
3. Simplified Language: The solutions are presented in a simple and easy-to-understand language, catering to students of varying learning abilities.
4. Step-by-Step Solutions: NCERT Solutions provide step-by-step explanations, making it easier for students to comprehend complex problems and solutions.
5. Comprehensive Coverage: All exercise questions from each chapter are addressed in NCERT Solutions, allowing students to practice and revise effectively.
6. Exam Orientation: NCERT Solutions are crafted with a focus on exam preparation, offering adequate practice and guidance for students to excel in their Class 10 Science board exams.
Overall, NCERT Class 10 Science Solutions stand out due to their alignment with the official syllabus, authentic content, simplicity, and comprehensive coverage, making them invaluable study materials for Class 10 students.
Are the solutions provided in easy-to-understand language for better comprehension?
Yes, the solutions provided in NCERT Class 10 Science Solutions are presented in an easy-to-understand language for better comprehension by students. The main aim of these solutions is to simplify complex concepts and make them accessible to learners of all abilities. The language used is clear, concise, and free from unnecessary jargon, ensuring that students can grasp the content without confusion.
The step-by-step approach in the solutions further enhances understanding. Each solution is broken down into logical steps, guiding students through the problem-solving process. This methodical approach helps in clarifying doubts and reinforcing the understanding of concepts.
Moreover, the use of diagrams, charts, and illustrations aids visual learners in grasping the information effectively. These visual aids supplement the explanations, making the solutions more comprehensive.
By presenting the solutions in an easy-to-understand language, NCERT ensures that students can confidently learn, revise, and practice the concepts, thereby enhancing their overall performance in the Class 10 Science exam.
How can Class 10 Science Solutions boost a student’s confidence while preparing for the board exams?
Class 10 Science Solutions can significantly boost a student’s confidence while preparing for the board exams in several ways. Firstly, the solutions provide comprehensive explanations to all the exercise questions, helping students understand the concepts and problem-solving techniques better. This enhanced understanding instills confidence in their ability to tackle challenging questions.
Secondly, by practicing the solutions, students can assess their progress and identify their weak areas. As they gain proficiency in solving various types of questions, their confidence in their problem-solving skills increases.
Additionally, the availability of solutions allows students to cross-check their answers and rectify any errors, ensuring accuracy in their responses during the exams.
Moreover, the step-by-step approach in the solutions helps students build a systematic approach to solving problems, reducing anxiety and fear of facing unknown questions.
Overall, Class 10 Science Solutions serve as a valuable study aid, giving students the reassurance that they are well-prepared and capable of handling the Science exam effectively. This confidence positively impacts their performance, leading to better results in the board exams.
Do the solutions cover all the exercise questions from each chapter of the NCERT textbook?
Yes, the Class 10 Science Solutions provided by NCERT cover all the exercise questions from each chapter of the NCERT textbook. These solutions are designed to be comprehensive and in line with the CBSE syllabus for Class 10 Science. They aim to provide students with a complete understanding of the topics and help them prepare thoroughly for their board exams.
The solutions address all the questions, including the multiple-choice questions, short answer questions, and long answer questions, ensuring that students have access to a diverse range of practice problems. Each question is explained in a step-by-step manner, making it easier for students to grasp the concepts and apply the correct methods for solving them.
By covering all the exercise questions, the solutions serve as an essential resource for students to practice and revise the entire syllabus effectively. Students can rely on these solutions to consolidate their learning, verify their answers, and gain confidence in their preparation for the Class 10 Science exam.
Can students use Class 10 Science Solutions for quick revision before the exam?
Yes, Class 10 Science Solutions can be a valuable tool for quick revision before the exam. These solutions are designed to provide concise and comprehensive explanations for all the exercise questions in the NCERT textbook. As they cover the entire syllabus, students can use them as a one-stop resource for revising each chapter.
The solutions are written in an easy-to-understand language, making it convenient for students to quickly revise important concepts and topics. By referring to the solutions, students can brush up on their understanding of key principles and review different types of questions that may appear in the exam.
Additionally, the solutions can help students identify and rectify any misconceptions or gaps in their knowledge. They can quickly cross-check their answers with the solutions and make necessary corrections, thus improving their confidence and readiness for the exam.
In conclusion, Class 10 Science Solutions are an effective tool for last-minute revision, providing students with a convenient and reliable way to refresh their understanding and ensure better performance in the board exam.
Are the solutions for Physics, Chemistry, and Biology covered separately in Class 10 Science?
Yes, the Class 10 Science Solutions cover Physics, Chemistry, and Biology separately. Class 10 Science is a comprehensive subject that includes topics from all three branches of science. Each branch is covered in its respective section within the NCERT textbook.
The solutions are divided into chapters, and each chapter focuses on specific topics related to Physics, Chemistry, or Biology. For example, in the NCERT Class 10 Science textbook, there are chapters on topics like “Light – Reflection and Refraction” (Physics), “Chemical Reactions and Equations” (Chemistry), and “Life Processes” (Biology), among others.
The Class 10 Science Solutions provide detailed explanations, step-by-step solutions, and relevant diagrams for all the exercise questions for each chapter in Physics, Chemistry, and Biology. This organization helps students to access and understand the solutions in a subject-wise manner, making it easier for them to study and prepare for their exams effectively.
How do the NCERT Class 10 Science Solutions help in solving sample papers and previous year question papers?
The NCERT Class 10 Science Solutions play a crucial role in solving sample papers and previous year question papers. By thoroughly understanding and practicing these solutions, students can develop a solid foundation in each topic of Science. This, in turn, equips them with the necessary knowledge and problem-solving skills to tackle similar questions in sample papers and previous year question papers.
The solutions act as a comprehensive guide, helping students revise and strengthen their understanding of concepts. By referring to the solutions, students can analyze the types of questions that have been previously asked and become familiar with the exam pattern and marking scheme. This enables them to identify important topics and allocate their time effectively during the actual exam.
Moreover, the solutions offer different approaches and techniques to solve complex problems, enhancing the students’ problem-solving abilities. Regular practice with sample papers and previous year question papers, using the NCERT Science Solutions as a reference, boosts students’ confidence and performance, ultimately leading to better results in the board exams.
Are there diagrams and illustrations provided with the answers for better clarity?
Yes, the NCERT Class 10 Science Solutions often include diagrams and illustrations to provide better clarity and understanding of the concepts. Diagrams play a crucial role in Science as they help visualize complex processes, structures, and phenomena. These visual aids help students grasp the information more effectively, especially when dealing with topics like biological processes, electrical circuits, magnetic fields, and more.
The inclusion of diagrams in the solutions enhances the overall learning experience and ensures that students can interpret and relate the theoretical concepts to real-world scenarios. Whether it’s understanding the anatomy of the human eye, the working of an electric motor, or the life cycle of a plant, diagrams aid in simplifying intricate concepts.
Moreover, diagrams are also important for scoring well in exams as they make answers more comprehensive and visually appealing. Students can use these illustrations to support their explanations and showcase their knowledge of the subject matter. Overall, the presence of diagrams in the Class 10 Science Solutions is beneficial in promoting better comprehension and retention of the topics covered.
Do Class 10 Science Solutions adhere to the CBSE syllabus and exam pattern?
Yes, Class 10 Science Solutions are specifically designed to adhere to the CBSE (Central Board of Secondary Education) syllabus and exam pattern. The solutions are prepared by subject matter experts, keeping in mind the guidelines and topics prescribed in the CBSE syllabus for Class 10 Science. They cover all the chapters and exercise questions as outlined by the board.
The solutions are structured in a manner that mirrors the format of CBSE question papers, facilitating students in becoming acquainted with the exam pattern. This helps them to understand the type of questions asked, the marking scheme, and the distribution of marks for different topics.
Moreover, the solutions provide step-by-step explanations for each question, helping students understand the concepts and solve problems effectively. By adhering to the CBSE syllabus and exam pattern, the Class 10 Science Solutions become a reliable and comprehensive resource for students to prepare thoroughly for their board exams and achieve good results.
For more detail understanding, read – Class 10 Notes for Science NCERT