Tag: Class 9

Copy of Class 10  Science  All In One
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CBSE 9  Science – Study – Free
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BASICS OF QUADRILATERALS  Study
PreRequisires Test & Enrich Quadrilaterals  Speed Notes Notes For Quick Recap Quadrilateral Any closed polygon with four sides, four angles and four vertices are called Quadrilateral. It could be regular or irregular. (Sroll down to continute …) Study Tools Audio, Visual & Digital Content Revision Notes – CBSE 09 Math – Quadrilaterals Angle Sum…

FORCE AND LAWS OF MOTION  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Force : Push or pull is called Force. Example: We push or pull to open a door. (Scroll down to continue …) Study Tools Audio, Visual & Digital Content Effects of Force Net or Resultant Force: Resultant Force or Net Force acts on a body…

GRAVITATION  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Dig Deep Topic Level Resources Sub – Topics Select A Topic Topic: Chapters Index Select Another Chapter Assessments Personalised Assessments

WORK AND ENERGY  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Dig Deep Topic Level Resources Sub – Topics Select A Topic Topic: Chapters Index Select Another Chapter Assessments Personalised Assessments

SOUND  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Dig Deep Topic Level Resources Sub – Topics Select A Topic Topic: Chapters Index Select Another Chapter Assessments Personalised Assessments

IMPROVEMENT IN FOOD RESOURCES  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Dig Deep Topic Level Resources Sub – Topics Select A Topic Topic: Chapters Index Select Another Chapter Assessments Personalised Assessments

MOTION  Study
PreRequisires Test & Enrich Rest And Motion  Speed Notes Notes For Quick Recap Rest And Motion Study Tools Audio, Visual & Digital Content Distance and Displacement Difference Between Displacement and Displacement Distance Displacement Distance is defined as the total length of the path travelled by an object to go from one point to another.…

TISSUES  Study
PreRequisires Test & Enrich Tissues  Speed Notes Notes For Quick Recap Are plants and Animals made of same types of tissues?Plants are stationary, and hence are provided with some tissues made up of dead cells, which provide mechanical strength. They have to withstand unfavourable conditions like strong winds, storms, floods etc. Animals on other…

THE FUNDAMENTAL UNIT OF LIFE  Study
PreRequisires Test & Enrich The Fundamental Unit of Life  Speed Notes Notes For Quick Recap What are Living organisms made up of?All living organisms are made up of cells. Cell is the basic structural and functional unit of complex organisms. History of cell: Cells were first discovered by Robert Hooke in 1665 with the…

MATTER IN OUR SURROUNDINGS  Study
PreRequisires Test & Enrich Matter In Our Surroundings  Speed Notes Notes For Quick Recap Matter: 1. Characteristics of Matter Particles Anything (Physical Material not emotions, feelings etc.) which has mass and volume (occupy space) is called matter. We feel the presence of matter by one or more of our five sense organs. Matter is…

IS MATTER AROUND US PURE  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Matter: Anything that occupies space is called matter. Example: Air, water, rock etc., Matter exists in our surroundings in both pure and impure forms. (Scroll down to continue …). Study Tools Audio, Visual & Digital Content Mixture: A mixture is a matter that contains more…

ATOMS AND MOLECULES  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Laws of Chemical Combination: Antoine Laurent Lavoisier, is known as ‘Father of Modern Chemistry. Lavoisier put forward the law of conservation of mass, which laid the foundation of chemical sciences. Law of Conservation of Mass:Law of Conservation of…

STRUCTURE OF THE ATOM  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Charged Particles in Matter Atoms consist of an equal number of protons and electrons. Protons exist in the interiors of the atom and electrons exist in the exteriors of the atom. Therefore, electrons can be removed from an…

CBSE 9  Mathematics – Study – Premium
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LINES AND ANGLES  Study
PreRequisires Test & Enrich Lines And Angles  Speed Notes Notes For Quick Recap Basic terms and Definitions 1. Point – A Point is that which has no component. It is represented by a dot. 2. Line – When we join two distinct points then we get a line. A line has no endpoints; it…

QUADRILATERALS  Study
PreRequisires Test & Enrich Quadrilaterals  Speed Notes Notes For Quick Recap Quadrilateral Any closed polygon with four sides, four angles and four vertices are called Quadrilateral. It could be regular or irregular. (Sroll down to continute …) Study Tools Audio, Visual & Digital Content Revision Notes – CBSE 09 Math – Quadrilaterals Angle Sum…

HERON’S FORMULA  Study
PreRequisires Test & Enrich Heron’s Formula  Speed Notes Notes For Quick Recap Perimeter Perimeter is defined as the outside boundary of any closed shape. To calculate the perimeter of a given shape we need to add all the sides of the shape. Example: The perimeter of a rectangle is the sum of its all…

INTRODUCTION TO EUCLID’S GEOMETRY  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Introduction to Euclid Geometry The necessity of geometry had been felt from ancient times in different parts of the world. The practical problems faced by people of ancient civilization had developed this branch of mathematics. Let us cite few examples. With floods in the river,…

NUMBER SYSTEMS  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Introduction to Natural Numbers Nonnegative counting numbers excluding zero are called Natural Numbers. N = 1, 2, 3, 4, 5, ………. Whole Numbers All natural numbers including zero are called Whole Numbers. W = 0, 1, 2, 3, 4, 5, ……………. (Scroll down to continue…

LINEAR EQUATIONS IN TWO VARIABLES  Study
PreRequisires Test & Enrich Linear Equations in Two Variables  Speed Notes Notes For Quick Recap Linear Equations The equation of a straight line is the linear equation. It could be in one variable or two variables. Linear Equation in One Variable The equation with one variable in it is known as a Linear Equation…

COORDINATE GEOMETRY  Study
PreRequisires Test & Enrich Coordinate Geometry: Cartesian Plane  Speed Notes Notes For Quick Recap Cartesian System A plane formed by two number lines, one horizontal and the other vertical, such that they intersect each other at their zeroes, and then they form a Cartesian Plane. Scroll Down To Continue … Study Tools Audio, Visual…

POLYNOMIALS  Study
PreRequisires Test & Enrich Speed Notes Notes For Quick Recap Study Tools Audio, Visual & Digital Content Revision Notes on Polynomials Polynomial A polynomial is an algebraic expression that includes constants, variables, and exponents. It is the expression in which the variables have only positive integral powers. Example 1. 4×3 + 3×2 + x +3…