CBSE Board Exams for Class 10 are all set to begin from the 21^{st} February, 2019. However, exams for core subjects like Maths, Science, Social Science and others will be conducted in the month of March. Most of the students find it difficult to prepare for Maths and Science subjects as these are the subjects which require conceptual learning instead of rote learning. We at Jagranjosh are bringing some effective preparations tips for CBSE Class 10 Maths and Science subjects. Chapterwise important topics and questions for Maths and Science subjects in Class 10 are also provided below which will come as a brief of the whole syllabus for these subjects. All these preparation resources have been collated by the subject experts after carrying the in depth analysis of the trends followed in the previous years’ question papers.

**CBSE Class 10 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.
- Formulate a technique for memorizing the formulae’s and concepts in a clear consensus
- Practice the numerical questions and the revise the concepts. As doing these will provide you an idea on where you are going wrong and how could you improve on them.
- Practice diagrams.
- Attempt each topic and try to decipher value questions from those.
- Practice NCERT books thoroughly. CBSE board exam question papers are completely based on this book.
- Do not start a new topic at the last minute. Revise the topics which you have already completed.

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

**1. Chemical Reactions and Equations**

This chapter makes you familiar with the chemical equations and various types of chemical reactions.

In this chapter you get to know about acids, bases and salts in terms of furnishing of H+ and OH− ions. Many salts along with their preparations and uses are also described here.

Properties of metals and non-metals, trends in their reactivity order , their extraction, purification, etc., are the topics discussed in this chapter.

Bonding in carbon compounds, different functional groups and their nomenclature, saturated and unsaturated hydrocarbons, chemical properties of carbon compounds, etc., are the topics discussed in this chapter.

**5. Periodic Classification of Elements**

This chapter details the different criteria used to classify the various elements. Gradation in different properties of elements like valency, atomic number, metallic and non-metallic properties in a periodic table are also discussed in this chapter.

In this chapter you learn about various forms of life, mode of nutrition, respiratory and excretory methods followed by them.

This chapter details the different ways in which organisms respond to the stimuli. Here you also get to know about the human nervous system, automatics and voluntary actions, exocrine and endocrine glands, etc.

**8. How do Organisms Reproduce?**

This chapter explains the different methods of reproduction in plants and animals and various methods of birth control in humans.

In this chapter you learn about each and every detail related to heredity and evolution of different species. Darwin's theory of evolution and natural selection are also discussed here.

What is reflection of light? What is refraction of light? Image formation by a plane mirror and curved mirrors and lenses, refraction of light through glass prism, power of a lens, etc, are the key topics discussed in this chapter.

**11. The Human Eye and the Colourful World**

In this chapter you get to know each and every detail of the human eye from its structure to its working. Various eye sight defects are also discussed here. You also learn about the atmospheric refraction and many natural phenomena occurring due to the atmospheric refraction.

This chapter specifies the various terms related to electric current, Ohm’s law, heating effect of electric current and its applications in daily life, electric power, etc.

**13. Magnetic Effect of Electric Current**

This chapter is all about the magnetic field, field lines, field due to a current carrying conductor, AC and DC generator, Advantages of AC over DC and domestic electric circuits.

Different forms of energy and their sources are discussed in this chapter.

Different components of environment; functioning of ecosystem; producers, consumers and decomposers; food chain and various trophic levels involved in it; different factors causing the degradation of environment are explained in this chapter.

**16. Management of Natural Resources**

In this chapter you get to know about the different natural resources, their advantages and conservation efforts.

**CBSE Class 10 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, thus by memorizing the formulae implied on solving those. This will give you a clearer understanding of the subject.
- Revise as many times as you can.

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

**Summative Assessment - I**

In this chapter you get to learn about the Euclid’s division lemma, various factors related to LCM and HCF, irrational numbers, etc.

Zeros of a polynomial, relationship between zeros and coefficients of quadratic polynomial, etc., are discussed in this chapter.

**3. Pair Of Linear Equations In Two Variables**

In this chapter you learn about calculating the graphical solution of a pair of linear equations in two variables.

This chapter details the different methods used to calculate the solutions of the quadratic equations. It also describes the expression of various day to day activities in the form of a quadratic equation.

What is AP? How to calculate any missing term of an AP? Application of AP in solving daily life problems, are the topis discussed in this chapter.

**6. Triangles**

In this chapter various properties related to a triangle are discussed with an apt proof for each.

In this chapter you learn about the distance formula and its application in finding the distance between any two points. Finding the area of triangle is also discussed here.

**8. Introduction to Trigonometry**

This chapter makes you familiar with the different trigonometric ratios and identities and relationships between them.

**9. Some Applications of Trigonometry**

In this chapter you learn about how to calculate different heights and distances using the different trigonometric ratios.

In this chapter various properties of circles are discussed with an apt proof for each.

Division of a line segment into given ratio, drawing a tangent to a circle from a point outside it and construction of a triangle similar to a given triangle are topics discussed in this chapter.

Here you learn to calculate the area of sectors and segments of a circle.

Here you learn about calculating the surface area and volume of different solid shapes like sphere, cone, cylinder, frustum, etc.

Calculating the mean, median and mode of grouped data and drawing the cumulative frequency graph are discussed in this chapter.

Solving the problems on single events, not using notation are discussed in this chapter.