1: Crop Production and Management
This chapter covers the fundamental practices involved in growing crops, from preparing the soil to storing the harvest, and introduces animal husbandry.
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Introduction to Crop Production: English -
Basic Practices of Crop Production (Preparation of Soil): English
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Sowing: Hindi
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Adding Manure and Fertilisers: Hindi
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Understanding different types of crops and their seasons.
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Not startedIdentifying the best methods for irrigation and weed control.
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Not started2: Microorganisms: Friend and Foe
This chapter explores the world of microorganisms, their beneficial roles (e.g., in food production, medicine) and harmful effects (causing diseases in plants, animals, and humans).
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Introduction to Microorganisms (Where do microorganisms live?): English
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Microorganisms and Us (Friendly Microorganisms): English
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Medicinal Use of Microorganisms (Antibiotics, Vaccines): Hindi
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Commercial Use of Microorganisms (Alcohol, Wine): Hindi
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Identifying different types of microorganisms and their characteristics.
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Not startedExplaining the role of microorganisms in nitrogen cycle and food preservation.
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Not started3: Synthetic Fibres and Plastics
This chapter delves into synthetic fibres like rayon, nylon, polyester, and acrylic, their properties and uses. It also covers plastics, their types, properties, and environmental concerns.
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What are Synthetic Fibres? (Types of Synthetic Fibres: Rayon, Nylon): English
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Polyester and Acrylic (Properties and Uses): English
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Characteristics of Synthetic Fibres: English
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Plastics (Types of Plastics: Thermoplastics and Thermosetting Plastics): Hindi
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Plastics as Materials of Choice (Non-reactive, Light, Strong and Durable): Hindi
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Plastics and the Environment (Biodegradable and Non-biodegradable materials): Hindi
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Comparing properties of natural and synthetic fibres.
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Not startedUnderstanding the impact of plastics on the environment and sustainable practices.
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Not started4: Materials: Metals and Non-Metals
This chapter introduces the physical and chemical properties of metals and non-metals, their reactions with different substances, and their various uses in daily life.
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Physical Properties of Metals and Non-Metals (Lustre, Hardness, Malleability, Ductility): English
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Conductivity (Heat and Electricity), Sonority: English
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Chemical Properties of Metals and Non-Metals (Reaction with Oxygen): Hindi
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Reaction with Water and Acids: Hindi
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Distinguishing between metals and non-metals based on their properties.
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Not startedPredicting outcomes of reactions involving metals and non-metals.
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Not started5: Coal and Petroleum
This chapter introduces exhaustible natural resources, focusing on coal and petroleum – their formation, processing, uses, and the importance of their conservation.
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Introduction to Resources (Exhaustible and Inexhaustible): English
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Coal (Formation, Products of Coal: Coke, Coal Tar, Coal Gas): English
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Petroleum (Formation, Refining of Petroleum): Hindi
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Natural Gas (Uses, CNG and LPG): Hindi
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Understanding the formation and processing of fossil fuels.
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Not startedIdentifying the environmental impact of coal and petroleum use.
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Not started6: Combustion and Flame
This chapter explains combustion, conditions required for it, different types of combustion, flame structure, and the concept of fuel and its efficiency.
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What is Combustion? (Conditions for Combustion): English
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Flame (Structure of a Flame): English
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Types of Combustion (Rapid, Spontaneous, Explosion): English
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Flame (Structure of a Flame): Hindi
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What is Combustion? (Conditions for Combustion): Hindi
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Harmful Effects of Burning Fuels (Global Warming, Acid Rain): Hindi
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Explaining the process of combustion and its types.
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Not startedAnalyzing the environmental impact of burning different fuels.
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Not started7: Conservation of Plants and Animals
This chapter focuses on the importance of biodiversity and the need for conservation, covering deforestation, afforestation, wildlife sanctuaries, national parks, and biosphere reserves.
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Deforestation and its Causes: English
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Consequences of Deforestation (Desertification, Global Warming): English
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Conservation of Forest and Wildlife (Biosphere Reserve): Hindi
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Wildlife Sanctuaries and National Parks: Hindi
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Understanding the causes and effects of deforestation.
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Not startedIdentifying different conservation methods and their importance.
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Not started8: Cell – Structure and Functions
This chapter introduces the fundamental unit of life, the cell, exploring its discovery, basic structure, types (prokaryotic and eukaryotic), and the functions of various cell organelles.
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Discovery of the Cell: English
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The Cell (Number, Shape and Size of Cells): English
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Basic Structure of the Cell (Cell Membrane, Cell Wall): Hindi
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Cytoplasm and Cell Organelles (Mitochondria, Endoplasmic Reticulum, Ribosomes, Golgi Bodies, Vacuoles): Hindi
Up next for you:
Identifying and labeling different parts of a plant and animal cell.
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Not startedUnderstanding the functions of various cell organelles.
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Not started9: Reproduction in Animals
This chapter explains different modes of reproduction in animals, including sexual reproduction (fertilization, development of embryo) and asexual reproduction.
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Modes of Reproduction (Sexual Reproduction): English
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Male and Female Reproductive Organs: English
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Fertilisation (Internal and External Fertilisation): Hindi
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Development of Embryo (In viviparous and oviparous animals): Hindi
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Understanding the process of sexual reproduction in animals.
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Not startedDifferentiating between viviparous and oviparous animals and modes of asexual reproduction.
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Not started10: Reaching the Age of Adolescence
This chapter focuses on adolescence, puberty, hormonal changes, and the development of secondary sexual characteristics. It also covers reproductive health, menstruation, and AIDS.
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Adolescence and Puberty: English
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Changes at Puberty (Increase in Height, Change in Body Shape, Voice Change): English
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Development of Sex Organs, Reaching Mental, Intellectual and Emotional Maturity: Hindi
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Role of Hormones in Initiating Reproductive Function: Hindi
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Understanding the physical and emotional changes during adolescence.
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Not startedLearning about reproductive health and the role of hormones.
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Not startedTextbook Solutions
11: Force and Pressure
This chapter introduces the concepts of force (push, pull, types of forces) and pressure (definition, atmospheric pressure, and pressure in liquids).
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Introduction to Force (Push or a Pull): English
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Force can Change the State of Motion, Change the Shape of an Object: English
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Contact Forces (Muscular Force, Friction): Hindi
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Pressure (Force per Unit Area): Hindi
Up next for you:
Identifying different types of forces and their effects.
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Not startedCalculating pressure and understanding its applications.
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Not startedTextbook Solutions
12: Friction
This chapter explains friction as a necessary evil, its causes, factors affecting it, and methods to increase or decrease it. It also covers rolling and fluid friction.
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Introduction to Friction: English
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Factors Affecting Friction (Nature of Surfaces, How hard the two surfaces press together): English
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Friction: A Necessary Evil (Advantages of Friction): Hindi
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Increasing and Reducing Friction (Lubricants, Ball Bearings): Hindi
Up next for you:
Explaining the causes of friction and its types.
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Not startedApplying methods to increase or decrease friction in practical situations.
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Not startedTextbook Solutions
13: Sound
This chapter explains how sound is produced, propagated, and heard. It covers characteristics like amplitude, frequency, and loudness, and discusses audible and inaudible sounds, and noise pollution.
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Sound is Produced by Vibrations: English
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Sound Needs a Medium for Propagation: English
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How Do We Hear Sound? (The Ear): Hindi
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Amplitude, Time Period and Frequency of a Vibration: Hindi
Up next for you:
Explaining how sound is produced and travels through different media.
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Not startedDifferentiating between loudness and pitch of sound and understanding noise pollution.
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14: Chemical Effects of Electric Current
This chapter explores conductors and insulators of electricity, the chemical effects of electric current, and its applications like electroplating and purification of metals.
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Do Liquids Conduct Electricity? (Conductors and Insulators): English
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Chemical Effects of Electric Current (Electrolysis): English
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Electroplating (Applications of Electroplating): Hindi
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Uses of Electroplating in Industries: Hindi
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Identifying good and bad conductors of electricity.
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Not startedUnderstanding the process and applications of electroplating.
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Not startedTextbook Solutions
15: Some Natural Phenomena
This chapter explains the causes and safety measures for natural phenomena like lightning and earthquakes, including the structure of the Earth and the Richter scale.
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Lightning (Charging by Rubbing, Types of Charges): English
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Transfer of Charge, The Story of Lightning, Lightning Conductors: English
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Earthquakes (What is an Earthquake? Causes): Hindi
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Seismic Zones, Richter Scale, Protection Against Earthquakes: Hindi
Up next for you:
Understanding the causes and effects of lightning.
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Not startedLearning about earthquakes and safety measures.
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16: Light
This chapter explains the laws of reflection, regular and diffused reflection, formation of multiple images, dispersion of light, and the structure and function of the human eye.
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What is Light? (Laws of Reflection) :English
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Regular and Diffused Reflection :English
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Multiple Images (Kaleidoscope): Hindi
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Dispersion of Light (Rainbow): Hindi
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Understanding the laws of reflection and types of reflection.
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Not startedIdentifying parts of the human eye and explaining how we see.
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17: Stars and the Solar System
This chapter introduces celestial objects, stars, constellations, planets in our solar system, their characteristics, and other celestial bodies like asteroids, meteors, and comets.
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The Moon (Phases of the Moon) :English
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Stars (Constellations, Pole Star) :English
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The Solar System (Planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune): Hindi
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Other Members of the Solar System (Asteroids, Comets, Meteors and Meteorites): Hindi
Up next for you:
Identifying different phases of the moon and constellations.
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Not startedUnderstanding the characteristics of planets and other celestial bodies.
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Not startedTextbook Solutions
18: Pollution of Air and Water
This chapter discusses air pollution (causes, effects like global warming and acid rain, and control measures) and water pollution (causes, effects, and methods to purify water).
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Air Pollution (How Air Gets Polluted? Pollutants) :English
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Case Study of the Taj Mahal :English
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Water Pollution (How Water Gets Polluted?) :English
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Air Pollution (How Air Gets Polluted? Pollutants): Hindi
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Water Pollution (How Water Gets Polluted?): Hindi
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What is Potable Water and How is Water Purified?: Hindi
Up next for you:
Identifying major air pollutants and their sources.
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Not startedUnderstanding the causes and effects of water pollution and its control.
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