There are three types of Substances: Acids, Bases and Salts  Acids: Acids are sour in taste.They are corrosive in nature. […]

   Changes can be of two types, physical and chemical. Physical changes are changes in the physical properties of substances.  No […]

   Respiration is essential for survival of living organisms. It releases energy from the food. The oxygen we inhale is […]

   Transportation in animals: In most of the animals the blood that circulates in the body distributes food and oxygen […]

   CLICK Here For Test  Practice  👉👉NMMS Practice Test – 01 ( Force and Pressure)👈👈 Force: A push or a […]

  All organisms multiply or reproduce offspring of their own kind. In plants there are two modes of reproduction, namely (a) […]

   Motion: The action or process of moving or being moved. The distance moved by an object in a unit time […]

   Electric Current: Flow of electrons through a conductor. It is convenient to represent electric components by symbols. Using these, an […]

   Light: It is the natural agent that stimulates sight and makes things visible. Light travels along straight line. Any polished […]

   Wastewater:  Black-brown water which is rich in lather , mixed with oil that goes down the drains from skins, showers, […]