Class 8 Mathematics – Quadrilaterals 1. Introduction A quadrilateral is a polygon with four sides and four angles. The sum of all interior angles of a quadrilateral is always 360°. Quadrilaterals...
Class 8 Science – Friction: Factors, Advantages, and Disadvantages 1. Introduction Friction is the resistance offered by a surface when one object moves over another. It opposes motion...
Class 8 Science – Microorganisms: Friend and Foe 1. Introduction Microorganisms (microbes) are tiny living organisms not visible to the eye. Found everywhere: air, water, soil, humans,...