Grade 8 Subjects > Science Worksheets

Acids, Bases and Salts
This classification helps in understanding their properties and uses. Acids, bases, and salts are present in various forms in our everyday life, fro...
Biodiversity and its Conservation
It encompasses all living organisms, including plants, animals, and microorganisms, and the ecosystems they form. This diversity is crucial for main...
Cell - Structure and Functions
They are the smallest unit of life and are often referred to as the functional and structural unit of life. Every organism, from the tiniest bacteri...
Chemical Effects of Electric Current
The chemical effects of electric current refer to the transformations that occur when electricity passes through a liquid or solution. These transfo...
Coal and Petroleum
They are found deep beneath the Earth's surface and have been formed over millions of years. Understanding how they are formed and utilized is cruci...
Combustion and Flame
The substance that undergoes combustion is said to be combustible. Combustion is always accompanied by the evolution of energy in the form of heat a...
Conservation of Plants and Animals
Every species plays a crucial role in the ecosystem, and their extinction can have far-reaching effects. Unfortunately, human activities have led to...
Control and Coordination
One of the essential aspects of maintaining this complexity is control and coordination. The human body handles these functions through two main sys...
Crop Production and Management
The successful cultivation of crops in India relies heavily on effective crop production and management practices. In this passage, we will explore ...
Diversity in Living Organisms
This vast diversity of life is not just a matter of numbers, but also of forms, structures, habitats, and functions. Scientists have sought to under...
Electric Current and its Effects
It powers our homes, drives many of our gadgets, and illuminates our cities. One key concept in understanding electricity is the notion of electric ...
Excretion in Animals and Plants
This process helps in maintaining a stable internal environment, a state known as homeostasis. In animals, excretion primarily involves the removal ...
Fibre to Fabric
Fibres are the raw materials used to make fabric. These can be natural, such as cotton, wool, and silk, or synthetic, like polyester and nylon...
Force and Pressure
In physics, force is defined as a push or pull upon an object resulting from the object's interaction with another object. Whenever there is an inte...
Friction
Friction is a force that opposes the motion of an object. It acts in the opposite direction to the movement and is present everywhere around us...
Heredity and Evolution
Heredity is the process by which genetic information is transmitted from parents to offspring. This genetic information is carried in the form of ge...
How do Organisms Reproduce?
It is the process by which organisms produce new individuals of their own kind. This process is crucial for the survival of species as it ensures th...
Is Matter Around Us Pure?
Some of these substances are pure, while others are mixtures of different components. The question arises: what exactly is a pure substance? A pure ...
Life Processes
These processes include nutrition, respiration, transportation, excretion, and reproduction. Understanding these processes helps us comprehend how o...
Light
It is emitted from sources like the sun, lamps, and candles. Light travels in a straight line, and when it hits an object, it can be reflected, abso...
Management of Natural Resources
Natural resources include air, water, soil, minerals, plants, and animals. These resources are vital for human survival and the health of the ecosys...
Materials: Metals and Non-Metals
They can be broadly classified into two categories: metals and non-metals. Understanding the properties of these materials helps us determine their ...
Matter in Our Surroundings
It is anything that occupies space and has mass. The study of matter and its properties is a fundamental part of science...
Microorganisms: Friend and Foe
They are found everywhere, from the deepest oceans to the highest mountains. These organisms include bacteria, viruses, fungi, protozoa, and algae...
Motion and Time
A bird flying in the sky, a car racing down the street, and even a child running in the park are all examples of motion. Motion is a change in the p...
Natural Resources
They are classified into two types: renewable and non-renewable resources. Understanding these resources is crucial as they form the basis of life o...
Nutrition in Animals
Nutrition in animals involves the intake of food, which provides energy and materials needed for growth and repair. The process of nutrition in anim...
Nutrition in Plants
They are capable of making their own food through a process known as photosynthesis. This process occurs mainly in the leaves, which contain a green...
Our Environment
It includes the atmosphere, hydrosphere, lithosphere, and biosphere. The environment provides us with essential resources such as air, water, and fo...
Physical and Chemical Changes
Both types of changes are part of our daily lives and knowing how to distinguish between them helps in understanding the processes that occur around ...
Pollution of Air and Water
It is caused by the introduction of harmful substances into the natural environment. Two major types of pollution are air pollution and water pollut...
Reaching the Age of Adolescence
This period is characterized by rapid physical, emotional, and mental changes. During adolescence, individuals undergo a series of changes that prep...
Reproduction in Animals
It ensures the continuation of a species by producing new individuals. In animals, reproduction can occur in two main ways: _asexual reproduction_ a...
Reproduction in Plants
Plant reproduction can occur in two primary ways: asexual and sexual reproduction. Each method has its unique processes and importance in the plant ...
Respiration in Organisms
It is the means by which organisms obtain the energy necessary to sustain life. The process involves the intake of oxygen and the release of carbon ...
Soil
It is a complex mixture of minerals, organic matter, gases, liquids, and countless organisms that work together to support plant life. Soil forms th...
Some Natural Phenomena
These natural events can be both beautiful and destructive. One such phenomenon is an earthquake...
Sound
It travels through a medium, such as air, water, or solid materials. These vibrations create sound waves that are detected by our ears...
Stars and the Solar System
Among these lights are stars, which are luminous celestial bodies made of gases. The most prominent star in our sky is the Sun...
Structure of the Atom
Everything around us is made up of atoms. This concept is crucial in understanding the nature and behavior of materials...
Synthetic Fibres and Plastics
These materials are known for their durability and versatility. Unlike natural fibres, which are obtained from plants and animals, synthetic fibres ...
The Cell: The Fundamental Unit of Life
All living organisms, from the tiniest bacteria to the largest whales, are composed of cells. These microscopic units may function independently, li...
The Fundamental Unit of Life
All living organisms, from the smallest bacteria to the largest blue whale, are composed of cells. Cells are the building blocks of life, performing...
Tissues
When similar cells group together to perform a specific function, they form what is known as a tissue. This organization of cells into tissues is a ...
Transportation in Animals and Plants
In animals, transportation involves the movement of nutrients, gases, and waste products. In plants, it primarily involves the movement of water, mi...
Weather, Climate and Adaptations of Animals to Climate
It can change from hour to hour and day to day. The climate of a place, on the other hand, is the average weather condition of that place over a lon...
Why do we Fall Ill?
It is not merely the absence of disease or infirmity. However, we often find ourselves falling ill due to various reasons...
Winds, Storms and Cyclones
They occur due to the uneven heating of the Earth's surface by the Sun. The difference in temperature leads to differences in air pressure...