Class 8 Science Chapter 14 Chemical Effects of Electric Current Electroplating is the process of depositing desired metal on another metal by using electricity. In this article we will talk in detail about electroplating with some demonstrations and uses of electroplating. Best example of electroplating can be seen on artificial jewellery. On artificial jewellery actual […]
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What is Irrigation?
Class 8 Science Chapter 1 Crop Production and Management In this article we will talk about what is irrigation and what are its different methods. Seeds in crop field germinates only if they get sufficient amount of water. Moreover, plants also need water for growth and development of flowers, fruits and seeds. Water is absorbed […]
How is Rainbow Formed?
There are various natural phenomena like blue color of sky, white clouds, red hue at sunrise and sunset and many more. In this article we will discuss about rainbow and its formation in the sky. Rainbow occurs due to result of refraction , dispersion and reflection of sunlight. For its formation, there is need of […]
Water pollution – Its Sources, Causes and Water Purification
Class 8 Science Chapter 18 Pollution of Air and Water In this blog we will talk about water pollution, sources of water pollution and some of the methods of purification of water. Water is the basic need of life. On earth water is present in large amount, however, very small amount of water can be […]
Force – Definition and Types
Class 8 Science Chapter 11 Force and Pressure In this article we will take a brief discussion on force. So what exactly happens when you kick a ball? When you kick a ball, the ball starts moving. This means to move a ball you need to apply some amount of force in form of a […]
Hybridization of Molecular Orbitals
Class 11 Chemistry Chapter 4 Chemical bonding and molecular structure Concept of hybridization was first introduced by Pauling. He explained shapes of polyatomic molecules. He found that, atomic orbital combine to form new set of equivalent orbitals known as hybrid orbitals. However, these hybrid orbitals are used for forming bond. This phenomena was called as […]
Formation of Lightning in the Sky
Class 8 Science Chapter 15 Some Natural Phenomena Lightning in sky is kind of electric spark. In this article we will talk about lightning formation and safety measures at time of lightning. During development of thunderstorm, air current move upward, at the same time, water droplets move downwards. Hence there is rubbing action between them. […]
Hormones in living organisms
Class 8 Science Chapter 10 Reaching the Age of Adolescence In this article we will talk about hormones in living organisms. Specifically, let’s speak about humans. Human body is consist of different glands that performs different functions. Gland are divided into types, exocrine glands and endocrine glands. Exocrine glands are those which have separate dedicated […]
What is Moment of Inertia in Physics?
Class 11 Physics Chapter 7 System of Particle and Rotational Motion In linear motion, we have linear velocity. Analogues to this, in rotational motion we have angular velocity. In the same manner, in this article, we will find analogue to mass in rotational motion. Lets talk about moment of inertia, an analogue to mass in […]
Covalent Bond
Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure Ionic bonding is possible due to large difference in the electronegativity of two atoms combining with each other. What will happen if both the atom combining chemically have similar electronegativity? This results in the formation of covalent bond. Lewis suggested that atoms having similar electronegativity, […]