CBSE English Medium Class 9

CBSE English Medium Class 9, Class 9th English Medium Science MCQs Chapter wise

Class 9th Science Matter in Our Surroundings MCQs

Class 9 — Matter in Our Surroundings (30 MCQs) Class 9 — Matter in Our Surroundings (30 MCQs) Interactive MCQ quiz — select one option per question and click Submit. Small inline figures (particle diagrams, heating curve) are included where helpful. Submit Reset Score & detailed feedback appear below after submission. Made for CBSE Class […]

CBSE English Medium Class 9, Class 9th English Medium Science Case studies with Answers

Class 9th Science Improvement in Food Resources Case Study

Case Study 1: Crop Variety Improvement To feed the growing population, scientists developed high-yielding varieties of wheat that were disease-resistant and required less water. Farmers adopted these seeds to increase production and reduce crop loss. Questions: Case Study 2: Crop Production Practices Farmers in a village compared traditional and modern farming methods. Traditional methods involved

CBSE English Medium Class 9, Class 9th English Medium Science Case studies with Answers

Class 9th Science The fundamental unit of Life Case Study

Case Study 1: Discovery of Cell In 1665, Robert Hooke observed thin slices of cork under his self-made microscope. He noticed tiny box-like structures that resembled a honeycomb. He called them “cells.” Later, scientists like Schleiden and Schwann proposed the cell theory, which stated that all living organisms are made up of cells and that

CBSE English Medium Class 9, Class 9th English Medium Science Case studies with Answers

Class 9th Science Structure of the Atom Case Study

Case Study 1: Discovery of Electrons In 1897, J.J. Thomson performed experiments with cathode ray tubes. He found that when high voltage was applied across electrodes in a discharge tube, rays travelled from the cathode to the anode. These rays were deflected by electric and magnetic fields, showing that they carried negative charge. Thus, he

CBSE English Medium Class 9, Class 9th English Medium Maths Case Studies with Answers

Class 9th Mathematics Quadrilaterals Case Studies

Case Study 1: Park Design (Parallelogram Property) A rectangular park has opposite sides parallel and equal. The gardener noticed that ∠A = 70°. Questions: Case Study 2: Kite Festival (Rhombus Property) During kite festival, a rhombus-shaped kite was made with diagonals intersecting at right angles. Questions: Case Study 3: Classroom Board (Rectangle) A classroom board

CBSE English Medium Class 9, Class 9th English Medium Maths Case Studies with Answers

Class 9th Mathematics Lines and Angles Case Studies

Case Study 1: Road Crossing (Vertically Opposite Angles) Two roads intersect each other at a point and form angles. At the intersection, ∠AOC = 70°. Questions: Case Study 2: Railway Tracks (Parallel Lines) A railway line is crossed by a transversal bridge. The corresponding angles formed are ∠1 = 65°. Questions: Case Study 3: Linear

CBSE English Medium Class 9, Class 9th English Medium Maths Case Studies with Answers

Class 9th Mathematics Introduction to Euclid’s Geometry Case Studies

Case Study 1: Euclid’s Postulates in Daily Life Ravi was observing the boundary walls of his school. He noticed that the opposite walls were perfectly parallel and would never meet even if extended infinitely. His teacher explained that this is an example of Euclid’s fifth postulate, which states that if two straight lines are parallel,

CBSE English Medium Class 9, Class 9th English Medium Maths Case Studies with Answers

Class 9th Mathematics Coordinate Geometry Case Study

Case Study 1: Cartesian Plane Basics Ravi’s teacher drew two perpendicular lines intersecting at O. The horizontal line is called x-axis and the vertical line is y-axis. Together, they form the Cartesian plane. Questions: Case Study 2: Quadrants Points A(2,3), B(−4,5), C(−2,−6), D(3,−5) were plotted. Questions: Case Study 3: On Axes Teacher gave points P(0,5),

CBSE English Medium Class 9, Class 9th English Medium Maths Case Studies with Answers

Class 9th Mathematics Polynomials Case Study

Case Study 1: Understanding Polynomials Ravi wrote some expressions: 2x+3, x²+2x+1, 5, 7x³+4x+2. Questions: Case Study 2: Zeros of a Polynomial Teacher wrote f(x)=x²−4. Questions: Case Study 3: Remainder Theorem For p(x)=x²+3x+2 divided by (x+1). Questions: Case Study 4: Factor Theorem For polynomial f(x)=x²−5x+6. Questions: Case Study 5: Identities in Factorisation A teacher wrote a²+2ab+b².

CBSE English Medium Class 9, Class 9th English Medium Maths Case Studies with Answers

Class 9th Mathematics Number Systems Case Study

Case Study 1: Exponents and Divisibility Himanshu prepared a project on real numbers, where he explained exponential laws and divisibility rules. Questions: Case Study 2: Representation of Irrational Numbers Ravi used the Pythagoras theorem to represent √2 and √3 on a number line. Questions: Case Study 3: Decimal Expansions Students got decimals: 3.142857142857… and 0.1010010001…

CBSE English Medium Class 9, Class 9th English Medium Maths Notes/Formulas

Class 9th Mathematics Statistics Notes/Formulas

Statistics Statistics is the study of collection, organization, analysis and interpretation of data. Data A distinct piece of information in the form of fact or figures collected or represented for any specific purpose is called Data.  In Latin, it is known as the Datum. Collection of Data Data are generally of two types Primary Data Data collected

CBSE English Medium Class 9, Class 9th English Medium Maths Notes/Formulas

Class 9th Mathematics Surface Areas and Volumes Notes/Formulas

Plane figure The figures which we can draw on a piece of paper or which lie on a plane are called Plane Figures. Example – Circle, Square, Rectangle etc. Solid figures The 3D shapes which occupy some space are called Solid Figures. Example – Cube, Cuboid, Sphere etc. Volume Space occupied by any solid shape is the capacity or volume of that

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