Chapter –13 Exponents and Powers Exponents: Exponents are used to express large numbers in shorter form to make them easy to read,...

Chapter –12 Algebraic Expressions Algebraic expressions are formed from variables and constants. We use the operations of addition, ...

Chapter –15 Visualising SolidShapes The circle, thesquare, the rectangle, the quadrilateral and the triangle are examples of plane...

Chapter –11 Perimeter and Area Perimeter is the distance around a closed figure whereasarea is the part of plane occupied by the...

Chapter –10 Practical Geometry In thisChapter, we looked into the methods of some rulerand compasses constructions. Given a line l and a...

Chapter – 9 Rational Numbers Rational Number: A number that can be expressed in the form 14. Every positive rational number is greater...

Comparing Quantities: Weare often requiredto compare two quantities, in our dailylife. They may be heights, weights, salaries, marks etc....

Chapter – 7 Congruence of Triangles SSS Congruence of two triangles: Under a given correspondence, two triangles are congruent if the...

Chapter –6 The Triangle and its Properties Triangles: A closed plane figure bounded by three linesegments. The six elements of a triangle...

Class 7 Important Formulas Chapter 5– Lines and Angles We recall that (i) A line-segment has two end points. (ii) A ray has only one...

CHAPTER – 4 SIMPLE EQUATIONS An equation isa condition ona variable suchthat two expressions in the variable should have equalvalue....

The collection, recording and presentation of data help us organiseour experiences and draw inferences from them. Before collecting data...

4. A fraction whose numerator is less than the denominator is called a proper fraction. 5. A fraction whose numerator is more than or...

CHAPTER – 1 Integers Integers are a bigger collection of numbers which is formed by whole numbers and their negatives. You have...

Nutrition in Plants Nutrition in Animals Fibre to Fabric Heat Acids, Bases and Salts Physical and Chemical Changes Weather, Climate and...

Chapter – 8 Cell — Structure and Functions Cell: The smallest structural and functional unit of anorganism, which istypically microscopic...

Chapter – 7 Weather, Climate and Adaptations to Climate Weather: Weather is theday-to-day condition ofthe atmosphere ata place influenced...

Chapter – 16 Water: A Precious Resource Water is essential for all living beings. No onecan imagine lifewithout water. Water exists in...

Chapter – 18 Waste water Story Waste water: Black-brown water whichis rich in lather , mixed withoil that goesdown the drains from skins,...

Chapter – 11 Transportation in Animals andPlants Transportation inanimals: In most of the animals the blood that circulates in the body ...

Chapter – 9 Soil Soil is the uppermost crust that covers the earth. It is a mixture of rock particles and humus. Soil is important for...

Chapter – 10 Respiration in Organisms Respiration isessential for survival of living organisms. It releases energy from the food. The...

All organisms multiplyor reproduce offspring of their own kind. In plants there are two modes of reproduction, namely (a) Asexual and (b)...

Chapter – 6 Physical andChemical Changes Changes can beof two types, physical and chemical. 1. Physical changes are changes in the...