Posted inChemistry

States of Matter

Matter exists in three different states solid, liquid and gas. These states of matter arise due to the variation in the extent of intermolecular forces and intermolecular space. The Solid State In this state of matter, the substances have definite mass, volume, and shape. Wood, table, pen, and book are examples of solid states of […]

Posted inChemistry

Interconversion of States of Matter

The state of matter is interconvertible. They can be interchanged by changing temperature or pressure as Various terms related to interconversion of states of matter are Fusion The process of melting, i.e., change of solid state into a liquid state is also known as fusion. Melting Point The temperature at which a solid starts to […]

Posted inChemistry


As we look at our surroundings, we see a large variety of things with different shapes, sizes and textures. Everything in this universe is made up of material which scientists have named ‘matter’. All the things such as stones, clouds, food, stars, plants, even a small drop of water occupy space and have mass. In […]

Posted inChemistry

Subatomic Particles and Their Properties

The theory of Dalton did not hold long and it was proved through the experiments of research worker like JJ Thomson (1897), Rutherford (1911), Neils Bohr (1912), Vector Chidwick, Moseley etc., that atom is made up of smaller particles, called the subatomic particles like electron, proton, neutron, positron, neutrino meson etc. However, former three are considered as […]

Posted inChemistry

Atomic Structure

Atom was considered as the smallest particle up to the 19th century. A series of experiments were performed to reveal the structure of the atom as well as to explain its important properties. These experiments indicated the divisibility of tom into sub-atomic particles and showed that atoms possess a definite internal configuration and composition. Dalton’s Atomic […]

Posted inPhysics

Electric Current

Electric current is the flow of electric charge through a conductor. e.g. in a torch, the cells provide the flow of charge or an electric current through the torch bulb to glow. Electric current is defined as the rate of flow of electric charge through a conductor. If Q amount of charge flows through a […]

Posted inPhysics


What is a Semiconductor Electronics is the field of engineering and applied physics that deals with the design and application of electronic circuits and devices. In electronic circuits, the operation depends on the flow of electrons and holes (appeared due to deficiency of electrons) in the form of current, etc. On the basis of its […]

Posted inBiology

Auxin producing area of a plant

Auxin was the first discovered plant hormone. It is certainly unknown the auxin producing area of a plant. The most active centers of auxin synthesis are shoot apical meristems, young leaves, and fruits. It is present in root tips but is believed to be transported there from the shoot rather than being synthesized there. Auxin […]

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