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From the current academic session, i.e., 2017-2018, the dual assessment scheme in CBSE Class 9 has been duiscontinued and like in Class 10, students of Class 9 will have to appear for the final examination at the end of the year that will include the complete syllabus for all the subjects. As per the CBSE’s remodeled assessment structure, the Assessment scheme will have an 80 marks component for Class 9 Annual examination in all scholastic subjects along with a 20 marks component of Internal Assessment (IA). IA comprises Periodic Tests (PT) with weightage of 10 marks, Notebook Submission of 5 marks and Subject Enrichment Activities of 5 marks.

**CBSE Class 9 Syllabus 2017-2018: All Subjects**

The changed assessment structure in Class 9 will help the students acquaint with the examination structure that followed in CBSE Class 10. So, students need to be more inquisitive and alert about the new pattern and prepare with effective strategies to score optimum marks in this class.

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

To help students prepare effectively for CBSE class 9 Mathematics and Science Internal assessments as well as Annual Examination 2017-2018, the subject matter experts at Jagranjosh has 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 exams:

**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.

**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.

• Attempt each exercise’s same pattern of questions and decipher the technique applied to solve those.

**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.

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.

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