science

This subject covers units such as chemistry, physics and, biology

Biology covers chapters such as Cell - Structure and Functions, Crop Production And Management, Microorganism Friend and Foe, Reproduction in Animals, Conservation of Plants and Animals and, Pollution of Air and Water

Biology

Chemistry covers chapters such as Coal and Petroleum, Synthetic Fibres and Plastics, Combustion and Flame and, Material : Metals and Non-Metals

Chemistry

Physics covers chapters such as Light, Sound, Friction, Force and Pressure, Chemical Effects of Electric Current, Stars and the Solar System and, Some Natural Phenomenon

Physics

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SCIENCE TEXTBOOK FOR CLASS VIII

Uncovering the Wonders and Risks of Cloning

Nervous System of a Frog

Care of Eyes

Crop Harvesting

Braille System

Production of Sound in Humans

Hormones and the Life Cycles of Insects and Frogs

Role of Hormones in Reproductive Functions

Male Sex Hormones

Fertilisers

Modes of Reproduction

Visually Challenged Persons

Fallowing and Plant Nurseries

Food Preservation

Food Preservation (Pasteurisation)

Traditional Methods of Irrigation

Soil Preparation

The Structure of a Flame

Irrigation

Ploughing and Agricultural Implements

Reproduction and Its Two Modes

Refining of Petroleum

Muscular Force

Contact and Non-contact Forces

Construction and Working of Fire Extinguishers

Study of Infrasound and Ultrasound in Waves

Persistence of Vision

Accommodation of the Eye

Kaleidoscope

Earth's Crust

Examples of Electrostatic Charging by Rubbing

Musical Sound and Noise

Loudness and Pitch

Rolling and Sliding Friction

Uses of Friction

Methods of Reducing Friction

Effects of Friction

Examples of Non-contact Forces

Forces and Motion

Forces Are Due to Interaction

Force: Push or Pull

Sex Determination in Humans

Puberty, Menstruation and Menopause

Hormones and Endocrine Glands

Life Cycle of a Frog

Life Cycle of a Butterfly

Fertilisation and Implantation in Humans

Different Types of Combustion

Combustible and Non-combustible Substance

Ignition Temperature and Combustion

Types of Fuel and Their Uses

Nitrogen Cycle

Microbes - Tiny but Deadly

Algae and Diatoms - Structure and Habitat

Pesticides and Weedicides

Manuring, Weeding and Irrigation

Types of Crops

Crop Production and Crop Improvement

Soil Erosion - Causes and Prevention

Impacts of Human Activities on the Environment

Structure of Ecosystem

Importance of Forests

Forests and Their Resources

Amoeba- Its Movement and Digestion

Dust and Smoke Particles in Air

Nutrients in Common Food Items

In Vitro Fertilisation

Sexually Transmitted Disease – AIDS

Female Reproductive System

Calorific Value and Fuel Efficiency

Inexhaustible Sources of Energy

Electric Charge

Defects of Vision

Flames and Its Types

Importance of Animal Husbandry

The Vermicomposting Process

Factors Responsible for Soil Erosion

Reducing Global Warming

Structure of Human Ear

Propagation of Sound Waves Through Different Media

Amplitude, Time Period & Frequency of a Vibration

Dispersion of White Light

Plane Mirrors Parallel to Each Other

Reflection of Light

Effects of Rotation of a Plane Mirror

Laws of Reflection of Light

What Causes Earthquakes?

Lightning Conductor

Electroscope

Lightning Due to Electric Discharge

Electroplating

Water: Conductor or Non-conductor

Comparing Conductors and Electrolytes

Noise Pollution

Sound

Fluid Friction

Factors Affecting Friction

Laws of Liquid Pressure

Pressure Exerted by Liquids

Applications of Thrust and Pressure

This chapter covers topics such as Earthquake, Charge, Charging by Rubbing, Lightning, and Sparks and Electric Charges.

Some Natural Phenomenon

This chapter covers topics such as Amplitude, Time Period and Frequency of a Vibration, Sound Is Produced by a Vibrating Body, Sound Needs a Medium for Propagation, Sound Produced by Humans, Audible and Inaudible Sounds, Noise and Music, etc.

This chapter covers topics such as Inside Our Eyes, Laws of Reflection, Regular and Diffused Reflection, Multiple Images, Reflected Light Can be Reflected Again, Care of Eyes, Sunlightâ€”White or Coloured, and Braille System.

Light

This chapter covers topics such as Factors Affecting Friction, Force of Friction, Fluid Friction, Increasing and Reducing Friction, and Friction: A Necessary Evil.

Friction

This chapter covers topics such as Pressure Exerted by Liquids and Gases, Pressure, Exploring Forces, A Force Can Change the State of Motion, Force - A Push or a Pull, Contact Forces, and Non-contact Forces.

Force and Pressure

This chapter covers topics such as Liquids Conduct Electricity, Chemical Effects of Electric Current, and Electroplating.

Chemical Effects of Electric Current

This chapter covers topics such as Combustion, Controlling the Fire, Types of Combustion, Fuel, Fuel Efficiency, Flame, Structure of a Flame, and Harmful Products due to Burning of Fuels.

Combustion and Flame

This chapter covers topics such as Coal, Petroleum, Natural Gas, Conservation of Natural Resources, and Natural Resources.

Coal and Petroleum

This chapter covers topics such as Food Preservation, Introduction to Microorganisms, Nitrogen Fixation, Harmful Microorganisms, and Friendly Microorganisms.

Microorganism Friend and Foe

This chapter covers topics such as Modes of Reproduction, Sexual Reproduction, and Asexual Reproduction.

Reproduction in Animals

This chapter covers topics such as Changes at Puberty, Adolescence and Puberty, Reproductive Health, Reproductive Phase of Life in Humans, Role of Hormones in Reproductive Functions, Secondary Sexual Characters, Hormones other than Sex Hormones, etc.

Reaching The Age of Adolescence

This chapter covers topics such as Preparation of Soil, Manure and Fertilisers, Storage of Food Grains, Agricultural Practices, Basic Practices of Crop Production, Irrigation, Harvesting, Protection from Weeds, and Food from Animals.

Crop Production And Management

This chapter covers topics such as Deforestation and its Causes, Conservation of Forest and Wildlife, and Consequences of Deforestation.

Conservation of Plants and Animals

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