science

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

Biology covers chapters such as Pollution, Ecosystems, Health and Diseases, Living World and Classification of Microbes, Cell and Cell Organelles and, Human Body and Organ System

Biology

Physics covers chapters such as Sound, Disaster Management, Reflection of Light, Force and Pressure, Life Cycle of Stars, Current Electricity and Magnetism and, Measurement and Effects of Heat

Physics

Chemistry covers chapters such as Metals and Nonmetals, Composition of matter, Man Made Materials, Inside the Atom, Chemical Change and Chemical Bond and, Introduction to Acid & Base

Chemistry

General Science

Basic Science for Class 8

Expanded Universal Science

Lakhmir Singh's SCIENCE FOR CLASS 8

NCERT Exemplar Science - Class 8

SCIENCE TEXTBOOK FOR CLASS VIII

End Stages of Stars

Birth of a Star

Star’s Life Cycle: Red Giant and White Dwarf

The Specialised Cells of Anabaena

Biodiversity and Megadiversity

Non-infectious Diseases and Peptic Ulcer

Acute and Chronic Diseases

Electrical Conductivity of Metals and Non-metals

Contact and Non-contact Forces

Construction and Working of Fire Extinguishers

How to Prevent Water Pollution

Nuclear Reactor

Atomic Energy Levels

Bohr's Atomic Model

Human Respiratory System

Sphygmomanometer to Measure BP

The Human Heart and Its Functions

Chemical Properties of Acids and Bases

Common Element Present in Acids

Spoiling the Soil

Components of Environment

Sound Propagation

Density of Substances

A Formal Proof of Archimedes' Principle

Archimedes’ Principle: Statement and Applications

Yeast and Fungi

Protozoans

Diatoms

Microbial Rule: Kingdom Monera

Cell Organelles: ER and the Golgi Body

Origin of Atomic Number and Mass Number

Rutherford's Model of an Atom and Its Drawback

Atoms, Molecules and Ions

Physical and Chemical Changes Explained

Properties of Colloids

Suspensions and Their Properties

Mixtures

The Three Phases of Water

Molecular Arrangement in Gases

Molecular Arrangement in Liquids

Molecular Arrangement in Solids

The Three States of Matter

Kaleidoscope

Musical Sound and Noise

Features of the Animal Cell

Nucleus and Lysosomes

Cellular Anatomy of Plant Cell

Ecosystem

Chemistry of Fire

Reactions of Metals with Bases

Reactions of Metals with Acids

Reaction of Metals with Water

Reaction of Metals with Oxygen

Microbes - Tiny but Deadly

Algae and Diatoms - Structure and Habitat

Impacts of Human Activities on the Environment

Structure of Ecosystem

Working of an Electric Bell

Electromagnet and Its Application

Magnetic Effect of Electric Current

Symbols of Circuit Components

Heartbeat, Pulse and Heart Sound

Types of Blood Vessels

Effects of Smoking on Lungs

Structure of the Lungs

Respiratory and Circulatory Systems in Humans

Human Respiratory and Circulatory System

Breathing Mechanism in Humans

Methods of Prevention from Corrosion

Chemical Reactions and Their Characteristics

Natural Indicators

Acids, Bases and Their Neutralisation Reactions

A Laboratory Thermometer

Combined Maximum-minimum Thermometer

Heat: The Flow of Energy

Amoeba- Its Movement and Digestion

Electric Circuit as a Closed Path

Function of Contractile Vacuole in Amoeba

Types of Solutions

Water Pollution and Eutrophication

Methods of Controlling Air Pollution

Air Pollution and Its Sources

Introduction to Calorimeter

Cubical Expansion

Linear Expansion

Introduction to Thermal Expansion in Solids

Introduction to Ionic Bond

Plum-pudding Model

Elements, Compounds and Mixtures

Molecular Arrangement in Solids, Liquids and Gases

Blood Groups

Components of Blood

Aquatic Ecosystem

Biotic and Abiotic Factors

Energy Released in Nuclear Fission

Nuclear Fission

Introduction to an Electric Switch

Circuit Diagram of Electric Circuit

Electric Potential Difference

Definition of Electric Potential

This chapter deals with constellations and planets of the solar system. We will learn about the properties of stars and the sun. It discusses the birth, stability, and evolution of stars. It also details the three end stages of the stars.

Life Cycle of Stars

In this chapter, we will learn about the ecosystem. It explains how increasing population causes an increase in the use of resources. It also discusses the effects of urbanization and industrialization.

Ecosystems

This chapter discusses the types of synthetic fibers and plastics, their characteristics, and disadvantages. The uses of different types of plastic and the nature of the different waste materials are also discussed here.

Man Made Materials

This chapter explains the laws of reflection. Light is the medium of illumination that makes sight possible. It discusses the types of reflection with the help of a diagram. It discusses the function and uses of a kaleidoscope and a periscope.

Reflection of Light

This chapter discusses the concept of sound and its characteristics. It discusses the frequency of sound with relation to musical instruments. Topics such as audible and inaudible sounds and noise and noise pollution are also discussed here.

Sound

In this chapter, we will learn the sources of heat. It mentions the Sun as a natural source of heat. We will also learn about the measuring instruments such as thermometer and calorimeter with the help of pictorial representation.

Measurement and Effects of Heat

This chapter discusses the types of chemical changes. It discusses the structure of flame and harmful products obtained from the burning of a fuel. It describes the processes involved in photosynthesis and respiration.

Chemical Change and Chemical Bond

This chapter explains the meaning of acids and bases. It categorizes the substances into acids and bases and provides several examples of them. It discusses the properties and uses of acids along with a brief on neutralization reaction.

Introduction to Acid & Base

In this chapter, we will study the life processes of the human body. It classifies the respiration into internal and external respiration. It also details the process of the blood circulatory system, along with a brief on blood transfusion.

Human Body and Organ System

This chapter describes the structure of a cell and cell organelles, along with their functions. We will also learn the various parts of the nucleus of a cell. It also discusses the differences between an animal cell and a plant cell.

Cell and Cell Organelles

This chapter discusses various kinds of disasters and their effects in detail. It explains the structure of disaster management authority, aspects of disaster management cycle, administration of first aid, and preparation for disaster management.

Disaster Management

This chapter discusses the sources of air and water pollution. It discusses their impacts on living beings and the environment, along with their preventive measures. It also describes the various methods of purification of water.

Pollution

This chapter deals with the metals and non-metals, their uses, and their chemical and physical properties. It discusses the differences between the physical properties of metals and non-metals in a tabular form.

Metals and Nonmetals

In this chapter, we will study the types of elements, compounds, and mixtures. It details the properties of solution and suspension with the aid of activities. We will also learn to write the formulae of chemical compounds.

Composition of matter

In this chapter, we will study Dalton's atomic model, Thomson’s plum pudding model, and Rutherford’s model of an atom. It details the structure of an atom with its extranuclear part. A brief on the valency and electronic configuration is also given.

Inside the Atom

This chapter covers the effects of chemical reactions on electric current. It describes the magnetic effects and chemical effects of electric current. It also discusses the potential difference and electric circuits, along with the types of cells.

Current Electricity and Magnetism

This chapter discusses non-contact and contact forces along with balanced and unbalanced forces. Force is the push or a pull on an object with mass that causes it to change its motion. It also describes the buoyant forces and Archimedes principle.

Force and Pressure

In this chapter, we will understand the meaning of health. It classifies the diseases into infectious and noninfectious based on their modes of transmission. A brief on cancer, AIDS, diabetes, and heart diseases is given here.

Health and Diseases

This chapter deals with the classification of microorganisms. We will learn about disease-causing microorganisms, their modes of transmission, and preventive measures. Discoveries of microorganisms are also discussed here.

Living World and Classification of Microbes

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