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, Reaching the age of Adolescence

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

Science Crash Course (Based on Revised Syllabus-2023)

SCIENCE TEXTBOOK FOR CLASS VIII

SCIENCE For Class VIII

Learning Elementary Science with Online Support

I Explore 3rd EDITION A Science Textbook 8

All in One - SCIENCE CBSE Class 8

Full Marks Science

New Science Ahead 8

Galaxy A Course in Science Book 8

OXFORD New Science In Everyday Life 8

Basic Science for Class 8

Expanded Universal Science

Lakhmir Singh's SCIENCE FOR CLASS 8

Study Mate Science Class 8

NCERT Exemplar Science - Class 8

Care of Eyes

Crop Harvesting

Braille System

Production of Sound in Humans

Changes at Puberty

Knowing All About Puberty

Hormones and the Life Cycles of Insects and Frogs

Role of Hormones in Reproductive Functions

Male Sex Hormones

Secondary Sex Characteristics

Fertilisers

Visually Challenged Persons

Fallowing and Plant Nurseries

Food Preservation

Food Preservation (Pasteurisation)

Traditional Methods of Irrigation

Soil Preparation

The Structure of a Flame

Natural and Synthetic Fibres

Petrochemicals in Synthetic Fibres

Polymers

Fabrics for Clothes

Irrigation

Ploughing and Agricultural Implements

Biodegradable and Non-biodegradable Materials

Plastics and the Environment

Reproduction and Its Two Modes

Refining of Petroleum

Metal Displacement Reactions

Muscular Force

Contact and Non-contact Forces

Construction and Working of Fire Extinguishers

Importance of Wheat & Rice

How to Prevent Water Pollution

Pituitary Gland

Study of Infrasound and Ultrasound in Waves

Reducing Global Warming

Phases of the Moon

Asteroids, Comets, Meteors and Meteorites

The Inner Planets

The Sun

Stars in the Sky

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

Features of the Animal Cell

Nucleus and Lysosomes

Cellular Anatomy of Plant Cell

Structure of Onion Peel and Cork Cells

Different Types of Combustion

Combustible and Non-combustible Substance

Ignition Temperature and Combustion

Types of Fuel and Their Uses

Reactions of Metals with Bases

Reactions of Metals with Acids

Reaction of Metals with Water

Reaction of Metals with Oxygen

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

Recycling Plastic

Dust and Smoke Particles in Air

Nutrients in Common Food Items

Air Pollution and Its Sources

In Vitro Fertilisation

Sexually Transmitted Disease – AIDS

Female Reproductive System

Male Reproductive System

Artificial Satellites

Ozone Layer and Its Importance

Calorific Value and Fuel Efficiency

Defects of Vision

The stars, the moon, the planets and many other objects in the sky are called celestial objects. This chapter discusses the Sun, the moon and other heavenly bodies. It also explains the solar system, constellations and artificial satellite in detail.

Stars and The Solar System

Sound plays an important role in our lives. It helps us communicate with one another. This chapter provides an explanation about how sound is produced, how it travels from one place to another and how human produce sound.

Sound

This chapter discusses two destructive natural phenomena; lightning and earthquakes. It also discusses the steps to minimise destruction caused by these phenomena.

Some Natural Phenomenon

This chapter describes in detail the properties of light. It also explains its reflection in mirrors, and images formed by lenses.

Light

Any object moving over the surface of another object slows down when no external force is applied on it and finally it stops. It is due to friction. This chapter explains the various concepts related to friction in detail.

Friction

This chapter discusses force and pressure. It defines force and describes the types of force. It explains how a force changes the state of motion. It also explains the pressure exerted by liquid and gases and atmospheric pressure.

Force and Pressure

This chapter discusses the chemical effects of electric current. The passage of electric current through a conducting liquid causes chemical reactions. The resulting effects are called chemical effects of electric current.

Chemical Effects of Electric Current

This chapter deals with synthetic fibres and natural fibres. It discusses the types and characteristics of synthetic fibres. It also explains the advantages and limitations of using plastics.

Synthetic Fibres and Plastics

In this chapter, we will study the detail of metals and non-metals. We will learn the physical and chemical properties of metals and non-metals. We will also understand their reactions with acids, bases, water and oxygen.

Material : Metals and Non-Metals

This chapter deals with fuels, types of combustions and flames. It also describes the structure of flame, what is a fuel, fuel efficiency and how burning of fuel is harmful.

Combustion and Flame

Exhaustible resources are types of natural resource which are presented in limited and cannot be renewed. This chapter discusses coal and petroleum in detail. It also lists the various constituents of petroleum and its uses.

Coal and Petroleum

Reproduction is essential for the continuation of a species. This chapter explains the different modes of reproduction in plants and animals, difference between viviparous and oviparous animals and male and female reproductive organs.

Reproduction in Animals

In this chapter, you will learn the changes of human body after which a person becomes capable of reproduction. It discusses the adolescence and puberty, the role of hormones in initiating reproductive function and reproductive phases of human life.

Reaching the age of Adolescence

This chapter discusses the harmful changes taking place in our surroundings and their effects on our lives. It explains air and water pollution, greenhouse effect, global warming, portable water and the preventive measures of air and water pollution.

Pollution of Air and Water

This chapter explores microorganisms, their types, commercial and medicinal benefits to human beings. It also discusses the harmful microorganisms and their effects, food preservation techniques, nitrogen fixation and nitrogen cycle.

Microorganism Friend and Foe

This chapter deals with various aspects of crop production and management. To provide food for a large population, regular production, proper management and distribution is necessary.

Crop Production And Management

This chapter discusses the conservation of plants and animals. It explains the causes and effects of deforestation, biosphere reserve, endemic species, wildlife sanctuary and national park. It also explains the need for migration.

Conservation of Plants and Animals

The chapter describes the structure of the cell and its functions. It also focuses on the discovery of the cell along with its various parts. Furthermore, a note on cell membrane is provided here, including the animal and plant cell.

Cell - Structure and Functions

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