Post Date: October 10, 2023

For the academic session of 2025-26, the syllabus for Class 10 Science has been condensed. Several chapters have been omitted entirely, while certain sections from the remaining chapters have been removed. Now students can score 100% marks easily in class 10 science with less effort. It’s essential for students to familiarize themselves with the updated syllabus before beginning their board exam preparations. A streamlined overview of the Class 10 Science syllabus for this session is provided below.

Class 10 Science Chapter 1

Students often face few challenges while studying Class 10 Science Chapter 1 Chemical Reactions and EquationsSyllabus for Board Exam 2024: 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. . One of the primary challenges is balancing chemical equations. To learn chapter 1 of 10th science, it requires understanding the law of conservation of mass and practicing various equations until they get the hang of it.

With various reactions like combination, decomposition, displacement, and double displacement, students might struggle to classify them correctly based on given reactants and products. To overcome these challenges, it’s essential for students to engage with the material actively, seek clarifications when in doubt, practice regularly, and utilize diverse resources like videos, interactive simulations, and experiments.

Class 10 Science Chapter 2

To effectively learn Class 10 Science Chapter 2 Acids, Bases and SaltsSyllabus for Board Exam 2024: Acids, Bases and Salts 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. , start with the foundational concepts – what acids, bases, and salts are, their general properties, and examples. Use interactive tools and pH paper to test various household substances to understand their acidic or basic nature. Class 10 science chapter 2 needs practice in writing equations.

For reactions like acid-base neutralization, write and balance chemical equations to reinforce understanding. If possible, perform or watch demonstrations of reactions involving acids, bases, and salts in the lab. This can help in consolidating theoretical knowledge. Connect the chapter’s content to real-life scenarios, like the use of baking soda, antacids, or why lemon tastes sour. This makes learning more relatable.

Class 10 Science Chapter 3

Class 10 Science Chapter 3 focuses on Metals and Non-Metals. Metals possess distinctive characteristics such as luster, malleability, ductility, high melting points, and are good conductors of electricity and heat. Chemical reactions involving metals include the formation of metal oxides and displacement reactions. In class 10 science Chapter 3 Metals and Non-MetalsSyllabus for Board Exam 2024: Properties of metals and non-metals; Reactivity series; Formation and properties of ionic compounds; Basic metallurgical processes; Corrosion and its prevention. , the extraction of metals involves processes like refining, roasting, and reduction. Additionally, understanding the reactivity series is crucial as it ranks metals based on their reactivity. Corrosion, especially the rusting of iron and its prevention, is also a key topic.

On the other hand, non-metals have properties which are generally opposite to metals; they tend to be brittle, are poor conductors of electricity, and lack luster. When discussing 10th science chapter 3 metals and non-metals, it’s essential to understand the formation of non-metallic oxides and their covalent bonding nature. The chapter also delves into alloys, discussing their composition, properties, and varied applications. Furthermore, the chapter touches on the real-world applications and significance of both metals and non-metals in our daily life.

Class 10 Science Chapter 4

Class 10 Science Chapter 4 Carbon and its Compounds is one of the important chapters. Carbon is unique due to its ability to form long chains, branched and cyclic structures, primarily because of its tetravalency and catenation property. Class 10 Science Chapter 4 Carbon and its CompoundsSyllabus for Board Exam 2024: 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. introduces the versatile nature of carbon which allows it to bond with different elements, leading to the vast world of organic compounds. The types of bonds carbon forms, specifically covalent bonds, and the representations in terms of electron-dot structures are also discussed. The concept of hydrocarbons, which are compounds composed of carbon and hydrogen, is introduced, encompassing alkanes, alkenes, and alkynes.

Further deepening the understanding, the chapter elaborates on the functional groups, which are specific groups of atoms responsible for the characteristic reactions of compounds. Various functional groups like alcohols, aldehydes, ketones, and carboxylic acids are explored. Class 10 Science chapter 4 also touches on the processes of ethanol fermentation and the making of soap, elucidating the practical applications of carbon compounds. Another critical aspect discussed is the naming of carbon compounds or nomenclature, which provides a systematic approach to identify and name any given organic compound.

The Reduced Syllabus for Class 10 Science

Class 10 Science Chapter 5

Class 10 Science Chapter 5, Life Processes, delves into the essential functions that organisms perform to sustain life. The first part of class 10 science Chapter 5 Life ProcessesSyllabus for Board Exam 2024: Basic concept of nutrition, respiration, transport and excretion in plants and animals. sheds light on nutrition, a vital process where organisms take in materials and convert them into energy. It differentiates between autotrophic nutrition, where organisms like plants prepare their own food using photosynthesis, and heterotrophic nutrition, where animals depend on plants or other animals for their food. This section also explores different modes of nutrition, including parasitic, saprophytic, and holozoic, and delves into the human digestive system, elucidating its components and functions.

The subsequent segments, of the chapter 5 of 10th science, focus on other fundamental life processes. Respiration, a process through which energy is released from food, is explained in detail, differentiating between aerobic and anaerobic respiration. Transportation, the movement of substances within the body, is discussed with emphasis on the circulatory system in humans and the vascular system in plants. The chapter then addresses excretion, the process of eliminating waste, detailing the human excretory system and plant mechanisms for waste removal. Lastly, the concept of living beings having a regulated lifespan, necessitating the continuity of species via reproduction, is touched upon.

Class 10 Science Chapter 6

In the initial part of class 10 science chapter 6 Control and Coordination, focus on animals, particularly highlighting the pivotal role of the nervous system. This system consists of the brain, spinal cord, nerves, and receptors, working in tandem to process information and produce appropriate responses. Class 10 Science Chapter 6 Control and CoordinationSyllabus for Board Exam 2024: 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. elaborates on how nerve cells, or neurons, transmit signals. Reflex actions, which are immediate involuntary responses to stimuli, are also discussed, showcasing the body’s inherent mechanism to protect itself from potential harm.

Shifting focus to plants, the chapter 6 of 10th Science, underscores that while plants don’t have a nervous system like animals, they are still adept at responding to environmental stimuli. This is achieved through hormones, which in plants are chemical substances that regulate growth and adaptation. Tropisms, directional movements resulting from external stimuli like light (phototropism) and gravity (geotropism), are explored. Class 10 Science Chapter 6 also discusses other plant hormones and their functions, such as auxins that influence cell elongation, and gibberellins that promote stem growth. Overall, the chapter emphasizes the harmony and complexity of control and coordination mechanisms across various life forms.

Class 10 Science Chapter 7

Class 10 Science Chapter 7 how do organisms reproduce? starts by introducing the concept of reproduction as a fundamental life process, highlighting that it’s not essential for individual survival but crucial for species continuity. In Class 10 Science Chapter 7 How do Organisms Reproduce? Syllabus for Board Exam 2024: 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. , we will learn that in animals, two primary modes of reproduction are discussed: asexual and sexual reproduction. Asexual reproduction, which doesn’t involve gamete fusion, is simpler and faster, with methods like binary fission in amoeba and budding in hydra being explained. On the other hand, sexual reproduction involves the fusion of male and female gametes, leading to genetic diversity.

Focusing on human beings, the chapter provides a comprehensive overview of the human reproductive system. It describes the male and female reproductive organs, their structures, and functions. The process of fertilization, the development of embryos, and the phenomenon of pregnancy are discussed in depth. Furthermore, the chapter 7 of 10th science, touches upon the importance of reproductive health and introduces methods of birth control. In the realm of plants, the chapter describes sexual reproduction in flowering plants, detailing the structure of flowers, pollination, fertilization, and seed formation. Overall, the chapter offers insights into the myriad ways organisms reproduce, ensuring the perpetuation of life.

Class 10 Science Chapter 8

Class 10 Science Chapter 8, Heredity, delves into the foundational principles that govern the inheritance of traits across generations. Class 10 Science Chapter 8 HereditySyllabus for Board Exam 2024: 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). kicks off by introducing heredity as the process through which certain features or traits are passed down from parents to offspring. Mendel’s pioneering experiments on pea plants are discussed, which laid the groundwork for understanding inheritance patterns. His laws, including the Law of Dominance, Law of Segregation, and Law of Independent Assortment, provide insights into how alleles segregate and assort during gamete formation and fertilization.

As the chapter progresses, the concept of monohybrid and dihybrid crosses is explored, illustrating the inheritance of one or two genes, respectively. The distinction between dominant and recessive traits is explained, emphasizing how certain traits can be masked in one generation only to reappear in the next. Class 10 Science Chapter 8 also introduces the idea of co-dominance and incomplete dominance, where blending or joint expression of traits occurs. Furthermore, it delves into the determination of sex in humans, explaining the role of X and Y chromosomes. The chapter concludes by discussing the importance of DNA as the molecular basis of inheritance and variation, paving the way for more advanced topics in genetics.

Class 10 Science Chapter 9

Class 10 Science Chapter 9, Light – Reflection and Refraction, introduces the phenomenon of reflection, where light bounces off a surface. The formation of images by plane mirrors is discussed, laying the foundation for understanding the characteristics and differences between real and virtual images. Further, the concept of spherical mirrors, both concave and convex, is introduced. Through ray diagrams, class 10 Science Chapter 9 Light – Reflection and RefractionSyllabus for Board Exam 2024: 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. elucidates the rules of image formation, the relationship between object and image distance, and the mirror formula.

As the chapter progresses, the focus shifts to refraction, a phenomenon where light bends as it passes from one medium to another due to a change in its speed. The chapter describes the refractive index and Snell’s law, which relates the angle of incidence to the angle of refraction. Further, the behaviour of light as it traverses through lenses (concave and convex) is explored. Detailed ray diagrams illustrate the rules for image formation by lenses, culminating in the lens formula and the concept of magnification. Class 10 Science Chapter 9 provides a foundational understanding of the dual phenomena of reflection and refraction, integral to the broader study of optics.

Class 10 Science Chapter 10

Class 10 Science Chapter 10, Human Eye and Colourful World, explores the intricate structure of the human eye and the captivating phenomena of light that lead to the world’s colours. Class 10 Science Chapter 10 Human Eye and Colourful WorldSyllabus for Board Exam 2024: 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). begins with an in-depth look at the human eye, describing its various components such as the cornea, lens, retina, and optic nerve. The functioning of the eye, including how it forms images and its ability to focus on objects both near and far (accommodation), is elaborated upon. Certain vision defects, like myopia (short-sightedness), hypermetropia (long-sightedness), and presbyopia, as well as their corrective measures using appropriate lenses, are also discussed.

The latter part of the chapter dives into the fascinating phenomena associated with light that make our world colourful. It elaborates on the dispersion of white light by a prism, leading to the formation of a spectrum. Class 10 Science Chapter 10 touches upon the concept of recombination of dispersed light, resulting in white light. Phenomena such as atmospheric refraction, which leads to events like the twinkling of stars and the advance sunrise and delayed sunset, are explained. Additionally, the chapter delves into the scattering of light, which is responsible for the blue colour of the sky and the reddening of the sun at sunrise and sunset. Overall, this chapter provides a comprehensive understanding of the marvels of the human eye and the vibrant play of light in our environment.

Class 10 Science Chapter 11

Class 10 Science Chapter 11, Electricity, delves into the fundamentals of electric current and the principles governing its behaviour in circuits. Class 10 Science Chapter 11 ElectricitySyllabus for Board Exam 2024: 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. begins by introducing the concept of electric charge and the flow of these charges, termed as electric current. Ohm’s Law, a pivotal principle, is introduced, establishing the relationship between voltage, current, and resistance. The chapter further elaborates on the factors affecting resistance, including the length, area, and type of material. Series and parallel combinations of resistors are explored, detailing how total effective resistance changes based on the arrangement.

As the chapter progresses, it delves deeper into the concept of the electric potential and potential difference, explaining their significance in driving current through a circuit. The heating effect of electric current is discussed, introducing Joule’s law, which relates the heat produced in a resistor to the square of the current passing through it. Practical applications of the heating effect, such as the functioning of electric heaters and fuses, are highlighted. Additionally, Class 10 Science Chapter 11 touches upon the concept of electrical power and energy, leading to discussions on commercial units of electrical energy and power ratings of various electrical appliances. Overall, this chapter provides a foundational understanding of electricity, its effects, and its significance in daily life.

Class 10 Science Chapter 12

Class 10 Science Chapter 12, Magnetic Effects of Electric Current, explores the relationship between electricity and magnetism, uncovering their intertwined nature. Class 10 Science Chapter 12 Magnetic Effects of Electric CurrentSyllabus for Board Exam 2024: 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. commences with the discovery that a magnetic field is produced around a current-carrying conductor. The right-hand thumb rule, which helps determine the direction of the magnetic field around a current-carrying straight conductor, is introduced. The circular magnetic field around a current loop and solenoid is discussed, emphasizing the magnetic field’s resemblance to a bar magnet in the latter. The chapter then delves into the force experienced by a current-carrying conductor placed in an external magnetic field, forming the basis for the working of electric motors.

The second part of the chapter introduces the phenomenon of electromagnetic induction, the process by which a changing magnetic field in a circuit induces an electric current. Faraday’s experiments demonstrating this principle are highlighted. Class 10 Science Chapter 12 also explains the factors affecting the magnitude of the induced current. The direction of the induced current is determined by Fleming’s right-hand rule for generators and left-hand rule for motors. The chapter concludes with a discussion on the working of an electric generator, which converts mechanical energy into electrical energy, and the distinction between alternating current (AC) and direct current (DC). Through this chapter, students gain insights into the fascinating interplay between electric current and magnetism, underpinning many modern-day devices and technologies.

Class 10 Science Chapter 13

Class 10 Science Chapter 13, Our Environment, sheds light on the delicate interrelationships in the natural world and the human impact on these systems. Class 10 Science Chapter 13 Our EnvironmentSyllabus for Board Exam 2024: Eco-system, Environmental problems, Ozone depletion, waste production and their solutions. Biodegradable and non-biodegradable substances. begins by discussing ecosystems, emphasizing the interconnectedness of living organisms with their physical surroundings. Different components of the environment, including biotic (living) and abiotic (non-living) elements, are outlined. The chapter elaborates on food chains and food webs, showcasing the transfer of energy and matter through various trophic levels. The concept of ecological pyramids, which represent the number, energy, or biomass of organisms at each trophic level, is introduced, underscoring the energy loss at each successive level.

Moving forward, the chapter addresses human activities’ environmental implications, with a focus on the accumulation of non-biodegradable wastes. The detrimental effects of substances like plastics and chemicals like DDT are highlighted, especially their persistence in the environment and bio-magnification in food chains. Class 10 Science Chapter 13 emphasizes the need for waste management, introducing methods to reduce, reuse, and recycle waste. Additionally, the topic of ozone layer depletion, its causes like CFCs, and its implications on Earth’s life forms, particularly the harmful effects of increased UV radiation, are discussed. Through this chapter, students are made aware of the intricate balance in nature and the responsibility of humans to protect and preserve the environment.

Preparation of Class 10 science for Board and Pre-board

Preparing for Class 10 science quickly requires strategic planning, commitment, and consistent effort. Here’s a step-by-step guide to help you tackle the subject effectively. Gather all necessary materials, including textbooks, notes, reference books, and previous years’ question papers. Understand the syllabus thoroughly. Highlight the major topics and subtopics.

Divide the exams preparation period into weeks and days. Allocate specific chapters or topics to each week, ensuring you leave the last two weeks for revision and practice. Stick to the schedule as much as possible. Some topics carry more weight in exams. Prioritize them. Begin with concepts you find difficult or unfamiliar, so you have ample time to understand and seek help if needed.

Use specific study techniques during the exams. Don’t just read. Take notes, highlight key points, and make flashcards. Use them to understand and remember complex topics. One of the best ways to ensure you’ve understood something is to explain it to someone else. Practice with previous years’ question papers and sample papers. Time yourself while solving them to get a feel of the exam scenario.

If you’re stuck on a topic, ask your teacher, classmates, or consider online resources. Watch explanatory videos on platforms like YouTube or educational websites for better clarity. After completing each topic, take a day to revise before moving on. Use the last two weeks exclusively for revision. Go through the summary of each chapter, solve quick quizzes, and review flashcards. Don’t ignore laboratory experiments. They help reinforce theoretical concepts. Go through your lab manual and be clear about the methodology and outcome of each experiment.

Topic Wise Class 10 Science Preparation

Class 10 science covers Physics, Chemistry, and Biology, and sometimes, depending on the curriculum, it might include Earth Science or Environmental Science. Here’s a broad outline of the key topics generally covered in each section. Please note that specifics can vary based on the curriculum or educational board:

Class 10 Science – Physics
Light: Reflection and refraction, spherical mirrors, lenses, dispersion of light.
Human Eye and Colourful World: Atmospheric refraction and reflection, natural phenomenon due to dispersion of light.
Electricity: Electric current, potential difference, Ohm’s law, resistors, series and parallel combinations, electric power.
Magnetic Effects of Electric Current: Magnetic field, field lines, field due to a current-carrying conductor, electromagnetic induction.

Class 10 Science – Chemistry
Chemical Reactions and Equations: Types of chemical reactions, balancing chemical equations.
Acids, Bases, and Salts: Their definitions, general properties, examples, and importance.
Metals and Non-metals: Physical and chemical properties, reactivity series, extraction and refining of metals.
Carbon and its Compounds: Versatile nature of carbon, saturated and unsaturated carbon compounds, functional groups, soaps and detergents.

Class 10 Science – Biology
Life Processes: Process of Nutrition, Digestion, Respiration, Excretion and other functions related to life process.
Control and Coordination: Neurons, nervous system, reflex actions, hormones in animals, movement and growth in plants.
How Do Organisms Reproduce?: Modes of reproduction, sexual reproduction, reproductive health.
Heredity: Mendel’s laws of inheritance, evolution, natural selection, speciation.
Our Environment: Ecosystems, food chains and webs, environmental problems.

However, you should consult your specific syllabus or educational board’s guidelines to get a precise understanding of the main points for your exams.

Role of Tiwari Academy in Class 10 Science Preparation

Many solutions are available in various formats, like PDFs, which students can download and study even without an internet connection. Tiwari Academy has a platform feature, Discussion Forum, where students can ask their doubts. This interactive feature helps students clarify concepts they’re struggling with. The content on the platform is periodically reviewed and updated according to changes or revisions in the CBSE syllabus or NCERT textbooks.

Apart from textbook solutions, students can also access sample papers, previous year question papers, and model solutions. Practicing with these resources can be immensely helpful in exam preparation. Tiwari Academy provides summaries, revision notes, and other supplementary materials to aid in the student’s revision process. One of the primary benefits of Tiwari Academy is that its resources are freely accessible, making quality education available to everyone.

For students following the CBSE curriculum and using NCERT textbooks, platforms like Tiwari Academy can be instrumental in guiding them through their academic journey, clarifying doubts, and ensuring thorough preparation for their board exams.

Reduced Syllabus for CBSE Class 10 Science Board Exams