# CBSE Class 9 Exam 2021: Preparation Tips to Excel in Maths and Science

Check here the chapter-wise tips and strategies along with important questions for CBSE Class 9 Mathematics and Science Exam 2021.

*Mathematics and Science Chapterwise Tips and Strategies*

A well-planned preparation is always effective to perform well in exams and obtain desired marks. Therefore, students should always concentrate on an aligned preparation in order to make the maximum utilisation of available time. In this article, we have collated a few simple yet effective preparation tips along with important topics and questions for CBSE Class 9 Maths and Science subjects which will help students summarize their whole syllabus while preparing for their Annual Exam 2021.

**CBSE Class 9 Mathematics and Science Tips and Strategies**

To help students prepare effectively for CBSE class 9 Mathematics and Science papers to be conducted under Annual Examination 2021, the subject matter experts at Jagran Josh have prepared the preparation tips and important questions for all the chapters of Class 9 Maths and Science, that will help you perform outstandingly in your exam:

**CBSE Class 9 Science Tips and Strategies**

Some of the common and all time followed strategies are:

• Make notes in points which make it easier to learn the topic at the time of revision.

• Create a separate list of important formulae and laws.

• Prepare flow charts at the end of every topic.

• Practice diagrams.

• Attempt each topic and try to decipher value questions from those.

**Note - **Follow the revised syllabus of CBSE Class 9 Science while referring to the chapter-wise tips given below.

**Following are the chapter wise tips and tricks along with important questions to make your preparations easy:****1. Matter In Our Surroundings **

In this chapter various forms of matter, their conversion into one another and factors affecting these conversions are discussed. **2. Is Matter Around Us Pure**

This chapter explains the difference between compounds and mixtures and various methods used to carry out their separation.

**3. Atoms and Molecules**

This chapter includes the various concepts revolving around atoms, molecules and ions, symbols and formula of atoms and compounds along with different laws involved in chemical combinations.

**4. Structure of Atom**

This chapter describes how electrons, protons and neutrons were discovered and put together to give the structure of atom.**5. The Fundamental Undamental Unit Of Life**

Human cell, its structure and its various parts are explained thoroughly in this chapter.**6. Tissues**

What is a tissue? What are various types of tissues and their functions? These are the main topics of this chapter.

**7. Diversity in living Organisms**

Biodiversity is the key topic of this chapter. This chapter talks about the classification and evolution of various species existing in the world.**8. Motion**

This chapter states the definition of motion and describes various terms related to it. It also explains the mathematical expressions for various terms related to motion.**9. Force And Laws Of Motion**

What is a force? What causes an object to move from one place to another? Various laws of motion. These all topics are discussed about in this chapter.

**10. Gravitation**

Here the main topic talked about are gravitation and the universal law of gravitation. It also describes the various forces acting on an object when immersed in a liquid.

**11. Work and Energy**

This chapter describes the definition of work and various laws relating to work and energy.**12. Sound**

This chapter explains the production and propagation of sound, its reflection and various other terms related to it.

**13. Why do we fall ill**

In this chapter, various aspects of personal and community health are discussed. Varios diseases, their symptoms, causes, means and preventions are also explained here.**14. Natural Resources**

Earth is the only planet on which life exists. Life here is possible only due the presence of air, water and land which are the factors discussed in this chapter.

15. Improvement In Food Resources

This chapter describes the various methods implemented in improvement of crop variety, its management, animal husbandry, their health, etc.

**CBSE Class 9 Mathematics Tips and Strategies**

Some common tips to be followed are:

• Make a list of all Maths formulae for repetitive revision.

• Do lots of practice to achieve proficiency in Maths.

• Solve CBSE practice papers and sample papers within the time constraints to learn time management.

• In each exercise, attempt three-four questions of similar format and decipher the technique applied to solve those.

**Note - **Follow the revised syllabus of CBSE Class 9 Maths while referring to the chapter-wise tips given below.

**Following are the chapter wise tips and tricks and important questions to make your preparations easy:**

**1. Number System**

This chapter describes the various types of real numbers like natural numbers, integers, rational and irrational numbers.**2. Polynomials**

Main topics involved in this chapter are: definition and various types of polynomials, their coefficients, degree of polynomials and various theorems related to them.

**3. Coordinate Geometry**

Main topics discussed in this chapter are cartesian plane, coordinates of a point, graph of linear equations and its applications.

**4. Linear Equations In Two Variables**

This chapter involves the definition of linear equations, its solutions and plotting the equation on graph.

**5. Introduction To Euclid’s Geometry**

Euclid’s definitions, axioms and postulates are explained in this chapter**6. Lines and Angles**

In this chapter various types of angles are discussed with various theorems related to them.**7. Triangles**

Congurant and similar triangles, right angles triangle and various other types of triangles and their properties are discussed in this chapter.**8. Quadrilaterals**

Different types of quadrilaterals, their properties and many theorems are discussed in this chapter.**9. Areas of Parallelograms and Triangles**

Calculation of area of a triangle and parallelogram are discussed in this chapter.

**10. Circles**This chapter describes various terms related to the circles.

**11. Constructions**

Construction of angles, triangles, similar triangles, etc, are described in this chapter.

**12. Heron’s Formula**

Area of a triangle using Heron’s formula and its application in finding area of quadrilaterals are discussed in this chapter.**13. Surface Areas and Volumes**

This chapter describes how to calculate the surface areas and volumes of cubes, cuboids, spheres and right circular cylinders and cones.**14. Statistics**

Topics discussed in this chapter are: Collection of data, its presentation in tabular form, grouped form, bar graphs, histograms, frequency polygons, etc. along with finding the mean, median and mode of grouped data.**15. Probability**

This chapter explains the calculation of the chances of happening of an event.

**Also Check - CBSE Class 9 Complete Study Material & Preparation Guide for Annual Exam 2021**