1: Nutrition in Plants
This chapter explains the process by which plants obtain and utilize nutrients for their growth and survival, covering autotrophic and heterotrophic modes.
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Introduction to Plant Nutrition : English -
Photosynthesis - Food Making Process in Plants : English
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Other Modes of Nutrition in Plants (Parasitic, Saprotrophic, Insectivorous) : Hindi
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How Nutrients are Replenished in the Soil : Hindi
Up next for you:
Understanding the role of chlorophyll in photosynthesis.
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Not started2: Nutrition in Animals
This chapter describes the different modes of nutrition in animals, with a detailed focus on the human digestive system.
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Modes of Nutrition in Animals : English
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Digestion in Humans (Alimentary Canal and Glands) : English
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Digestion in Grass-eating Animals (Ruminants) : Hindi
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Feeding and Digestion in Amoeba : Hindi
Up next for you:
Tracing the path of food through the human digestive system.
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Not started3: Fibre to Fabric
This chapter describes the processes involved in obtaining natural fibres like wool and silk from animals and converting them into fabrics.
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Wool: Animals that Yield Wool : English
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Processing Fibres into Wool (Shearing, Scouring, Sorting) : English
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Silk: Life History of Silk Moth : Hindi
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From Cocoon to Silk (Reeling, Dyeing, Spinning) : Hindi
Up next for you:
Understanding the different stages of silk production.
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Not started4: Heat
This chapter covers the concepts of heat, temperature, different types of thermometers, and modes of heat transfer.
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Hot and Cold: Temperature Measurement : English
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Clinical and Laboratory Thermometers : English
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Transfer of Heat (Conduction, Convection, Radiation) : Hindi
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Wearing Clothes in Summer and Winter : Hindi
Up next for you:
Distinguishing between conductors and insulators of heat.
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Not started5: Acids, Bases and Salts
This chapter introduces acids, bases, and salts, their properties, indicators, and the process of neutralization.
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Acids and Bases in Our Daily Life : English
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Natural and Synthetic Indicators (Litmus, Turmeric, China Rose) : English
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Neutralisation Reaction : Hindi
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Neutralisation in Everyday Life (Indigestion, Ant bite, Soil treatment) : Hindi
Up next for you:
Identifying acidic and basic substances using indicators.
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Not started6: Physical and Chemical Changes
This chapter differentiates between physical and chemical changes, explaining their characteristics and providing real-life examples including rusting and crystallization.
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Physical Changes and Their Properties : English
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Chemical Changes and Their Characteristics : English
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Rusting of Iron and Its Prevention : Hindi
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Crystallisation : Hindi
Up next for you:
Differentiating between reversible and irreversible changes.
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Not started7: Weather, Climate and Adaptations of Animals to Climate
This chapter explains weather and climate, their elements, and how animals adapt to different climatic conditions.
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Weather vs. Climate : English
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Elements of Weather and Climate : English
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Adaptations of Animals to Polar Regions : Hindi
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Adaptations of Animals to Tropical Rainforests : Hindi
Up next for you:
Identifying unique adaptations of animals in extreme climates.
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Not started8: Winds, Storms and Cyclones
This chapter explains the causes of wind, storms, and cyclones, and precautions to be taken during such natural phenomena.
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Air Exerts Pressure and Wind Currents : English
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Thunderstorms and Cyclones : English
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Structure of a Cyclone : Hindi
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Safety Measures During Cyclones : Hindi
Up next for you:
Understanding how air pressure differences create wind.
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Not started9: Soil
This chapter delves into the composition of soil, different soil profiles, types of soil, and their properties like water absorption.
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Soil - A Vital Resource : English
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Soil Profile : English
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Soil Types (Sandy, Clayey, Loamy) : Hindi
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Properties of Soil (Percolation rate, Water retention) : Hindi
Up next for you:
Identifying which soil type is best for specific crops.
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Not started10: Respiration in Organisms
This chapter explains the process of respiration in various organisms, including aerobic and anaerobic respiration, and breathing mechanisms.
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Why Do We Respire? : English
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Aerobic and Anaerobic Respiration : English
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Breathing in Humans (Mechanism and Breathing Rate) : Hindi
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Respiration in Other Animals (Earthworm, Fish, Insects) : Hindi
Up next for you:
Comparing the process of breathing and respiration.
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Not started11: Transportation in Animals and Plants
This chapter covers the transport system in animals (blood, heart, blood vessels) and plants (xylem, phloem), including excretion in animals.
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Circulatory System in Humans (Blood, Blood Vessels, Heart) : English
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Heartbeat and Pulse : English
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Transport of Water and Minerals in Plants (Xylem) : English
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Circulatory System in Humans (Blood, Blood Vessels, Heart) : Hindi
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Transpiration : Hindi
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Excretion in Animals : Hindi
Up next for you:
Understanding the function of different blood components.
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Not started12: Reproduction in Plants
This chapter explains different modes of reproduction in plants, including asexual and sexual reproduction, pollination, fertilization, and seed dispersal.
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Asexual Reproduction in Plants (Vegetative Propagation, Budding, Fragmentation, Spore Formation) : English
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Sexual Reproduction in Plants (Flower structure) : English
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Pollination (Self and Cross Pollination) : Hindi
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Fertilisation and Seed Formation : Hindi
Up next for you:
Identifying different parts of a flower involved in reproduction.
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Not started13: Motion and Time
This chapter covers different types of motion, measurement of time, speed, and distance-time graphs.
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Types of Motion (Uniform and Non-uniform) : English
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Measurement of Time (Pendulum, Clocks) : English
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Speed - Calculating and Units : Hindi
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Distance-Time Graphs : Hindi
Up next for you:
Interpreting information from distance-time graphs.
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Not started14: Electric Current and Its Effects
This chapter introduces electric circuits, components, heating and magnetic effects of electric current, and electric bell.
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Electric Circuits and Their Components : English
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Heating Effect of Electric Current : English
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Magnetic Effect of Electric Current (Electromagnet) : English
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Electric Circuits and Their Components : Hindi
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Heating Effect of Electric Current : Hindi
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Magnetic Effect of Electric Current (Electromagnet) : Hindi
Up next for you:
Identifying conductors and insulators in everyday materials.
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Not started15: Light
This chapter explores the properties of light, including reflection, refraction, and image formation by plane mirrors, lenses, and prisms.
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Rectilinear Propagation of Light : English : English
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Reflection by Plane Mirrors (Image formation)
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Spherical Mirrors (Concave and Convex) : Hindi
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Lenses (Concave and Convex) : Hindi
Up next for you:
Understanding how different types of mirrors form images.
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Not started16: Water: A Precious Resource
This chapter highlights the importance of water, its forms, sources, water cycle, water scarcity, and water management techniques.
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How Much Water Is Available? : English
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Forms of Water and Water Cycle : English
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Groundwater as an Important Source of Water : Hindi
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Water Scarcity and Its Causes : Hindi
Up next for you:
Identifying different ways to conserve water at home and in community.
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Not started17: Forests: Our Lifeline
This chapter explains the importance of forests as habitats, producers, purifiers of air and water, and their role in maintaining ecological balance.
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Introduction to Forests : English
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Components of a Forest (Trees, Shrubs, Herbs, Decomposers) : English
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Food Chains and Food Webs in Forests : Hindi
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Importance of Forests (Oxygen, Water Cycle, Soil Erosion) : Hindi
Up next for you:
Understanding the role of decomposers in forest ecosystems.
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Not started18: Wastewater Story
This chapter explains wastewater, sewage, its treatment processes, and the importance of sanitation and hygiene.
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Water Pollution and Water Crisis : English
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Wastewater and Sewage : English
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Wastewater Treatment Plant (WWTP) : Hindi
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Sanitation at Public Places and Hygiene : Hindi
Up next for you:
Understanding the steps involved in wastewater treatment.
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Not started