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 […]
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
Case Study 1: Production of Sound Reena struck a tuning fork on a rubber pad and brought it near her ear. She noticed vibrations in its prongs, and a humming sound was produced. Sound is produced by vibrating bodies and requires a medium for propagation. Questions: Case Study 2: Longitudinal Waves A slinky experiment was
Case Study 1: Definition of Work Ravi applied a force of 20 N on a box and pushed it 5 m along the floor in the direction of the force. Work done is the product of force and displacement in the direction of the force. Questions: Case Study 2: Work Done Against Friction Aman pushes
Case Study 1: Universal Law of Gravitation Isaac Newton observed an apple falling from a tree and proposed that every object in the universe attracts every other object with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Questions: Case Study
Case Study 1: Balanced vs. Unbalanced Forces Rahul placed a book on a table. The weight of the book acts downward, and the table exerts an equal upward force. Hence, the book remains at rest. Later, he pushed the book with his hand, and it started moving. Questions: Case Study 2: Inertia (Newton’s First Law)
Case Study 1: Distance vs. Displacement Amit walks 3 km east and then 4 km north. His total distance is 7 km, but his displacement is the straight-line distance from the starting point to the final point. Questions: Case Study 2: Average Speed and Average Velocity Ravi goes from home to school (10 km) in
Case Study 1: Plant Tissue – Meristematic Tissue During a biology practical, Ankit observed the root tip of an onion. He noticed that cells were continuously dividing in this region, making the root grow longer. His teacher explained that these cells are meristematic tissues, found in growing regions of plants like root tips, shoot tips,
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
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
Case Study 1: Law of Conservation of Mass In a laboratory experiment, Sneha heated 5 g of calcium carbonate in a test tube. On heating, it decomposed to give 2.8 g of calcium oxide and 2.2 g of carbon dioxide gas. Her teacher asked her to verify whether the law of conservation of mass is
Case Study 1: Salt Solution Riya dissolved 20 g of salt in 100 mL of water and stirred well. The salt completely disappeared, forming a clear liquid. Questions: Case Study 2: Chalk in Water Sahil mixed chalk powder with water. The mixture looked cloudy and the particles settled down after some time. Questions: Case Study
Case Study 1: Ice in a Glass Ravi left some ice cubes in a glass on the table during summer. After 10 minutes, the ice completely melted into water. His sister noticed droplets forming on the outside of the glass. Questions: Case Study 2: Diffusion of Perfume Ananya sprayed perfume in one corner of her
Class 9 — Heron’s Formula Quiz (30 MCQs) Class 9 — Heron’s Formula (30 MCQs) Interactive MCQ quiz — select one option per question. Click Submit for score and feedback or Reset to try again. Submit Reset Answers & feedback appear below after submission. Made for CBSE Class 9 practice • Print with Ctrl/Cmd+P.
Class 9 — Statistics Quiz (30 MCQs) Class 9 — Statistics Quiz (30 MCQs) Interactive MCQ quiz — select one option per question and click Submit. Includes small inline figures (SVG). Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice • Print with Ctrl/Cmd+P.
Class 9 — Surface Areas & Volumes Quiz (30 MCQs) Class 9 — Surface Areas & Volumes Quiz (30 MCQs) Interactive MCQ quiz — select one option per question and click Submit. Use u03c0 = 22/7 unless stated otherwise. Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice
Class 9 — Circles Quiz (30 MCQs) Class 9 — Circles Quiz (30 MCQs) Interactive MCQ quiz — select one option per question and click Submit. Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice • Print this page with Ctrl/Cmd+P.
Class 9 — Quadrilaterals Quiz (30 MCQs) Class 9 — Quadrilaterals Quiz (30 MCQs) Interactive MCQ quiz — select one option per question and click Submit. Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice • Print this page with Ctrl/Cmd+P.
Class 9 — Triangles Quiz (30 MCQs) Class 9 — Triangles Quiz (30 MCQs) Interactive MCQ quiz — select one option per question and click Submit. Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice • Print this page with Ctrl/Cmd+P.
Class 9 — Lines & Angles Quiz (30 MCQs) Class 9 — Lines & Angles Quiz (30 MCQs) Interactive MCQ quiz — select one option per question and click Submit. Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice • Print with Ctrl/Cmd+P.
Class 9 — Linear Equations in Two Variables (30 MCQs) Class 9 — Linear Equations in Two Variables (30 MCQs) Interactive multiple-choice quiz — select one option per question and click Submit. Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice • Print with Ctrl/Cmd+P.
Class 9 — Euclid’s Geometry Quiz (30 MCQs) Class 9 — Euclid’s Geometry Quiz (30 MCQs) Multiple choice quiz — select one option per question and click Submit. Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice • Print this page with Ctrl/Cmd+P.
Class 9 — Coordinate Geometry Quiz (30 MCQs) Class 9 — Coordinate Geometry Quiz (30 MCQs) Interactive MCQ quiz with inline figures (SVG). Select one option per question and click Submit. Submit Reset Results and answer key will appear below after submission. Made for CBSE Class 9 practice • Use Ctrl/Cmd+P to print this page.
Class 9 — Polynomials Quiz (30 MCQs) Class 9 — Polynomials Quiz (30 MCQs) Multiple choice quiz — select one option per question and click Submit. Submit Reset Score and feedback appear after submission. Made for CBSE Class 9 practice • You can print or embed this page in your website.
Class 9 — Number System Quiz (30 MCQs) Class 9 — Number System Quiz (30 MCQs) Multiple choice quiz — select one option per question and click Submit. Submit Reset Score and detailed feedback appear below after submission. Made for CBSE Class 9 practice • You can print this page (Ctrl/Cmd+P) or copy the code
Case Study 1: Marks in Examination A class teacher recorded marks of 10 students in a mathematics test:Marks (out of 20): 10, 12, 15, 17, 18, 20, 12, 15, 18, 10. Questions: Case Study 2: Daily Wages The daily wages (in ₹) of 20 workers were recorded: 100, 120, 140, 160, 180 (with frequencies 2,
Case Study 1: Water Tank A school installed a cylindrical water tank of radius 1.4 m and height 3.5 m. The tank was painted from outside and also used to store water. Questions: Case Study 2: Ice Cream Cone An ice cream cone has a height of 9 cm and base radius of 3 cm,
Case Study 1: Garden Triangular Plot A farmer owns a triangular garden plot with sides 13 m, 14 m, and 15 m. He wants to calculate its area to know how much grass seed to buy. He decides to apply Heron’s formula. Questions: Case Study 2: Playground Division A school divides a quadrilateral playground into
Case Study 1: Playground Circle A circular playground has a chord AB of length 12 m. The perpendicular from the center O to AB meets it at point M, where OM = 4 m. Questions: Case Study 2: Circular Fountain In a park, there is a circular fountain with diameter 14 m. A student walked
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
Case Study 1: School Playground Construction A school was constructing a triangular flower garden in its playground. The sides of the garden were measured as 7 m, 24 m, and 25 m. The principal asked students to check if this triangle was a right-angled triangle. One student applied the Pythagoras theorem and verified the condition
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
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,
Case Study 1: Cost of Pens and Pencils A shopkeeper sells pens at ₹10 each and pencils at ₹5 each. If a customer buys pens worth ₹x and pencils worth ₹y, then the total cost can be expressed as 10x + 5y. To find the possible purchases for ₹50, the situation can be represented by
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),
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.
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…
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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
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
