Board Exam Hacks: Tips for CBSE Class 10 Science

It’s almost time. The pre-boards are behind you and all that remains is that final countdown to your first board exams ever. No more classes to be attended, no more tests, and no more assignments. It’s time now to give your full attention and focus to perfecting your skills in your subjects, whether it is maths, science or any of the theory subjects.

We have something to make your task easier. Exclusively prepared for you by our experts at Meritnation, here is a chapter-wise list of important topics for CBSE Class 10 Science, together with special tips for every chapter. We are sure you will find it useful!

Chapter: How do organisms reproduce

Important Topics:

1. Modes of asexual reproduction
2. Structure of flower
3. Fertilisation in plants
4. Male and female reproductive system

Method for Quick Understanding:

1. You must know about reproduction and why it is important for species.
2. The process of sexual reproduction in plants is very important with detailed knowledge of each event.
3. The diagrams of male and female reproductive organs are important to understand the concept.

Chapter: Heredity and evolution

Important Topics:

1. Mendelian crosses
2. Sex determination
3. Difference between acquired and inherited traits
4. Homologous and analogous organs

Method for Quick Understanding:

1. Mendel experiments are important and all the laws of inheritance.
2. You should have the basic idea of human evolution, so that you can attempt questions easily.

Chapter: Our Environment

Important Topics:

1. Ecosystem and its components
2. Food chain and food webs
3. Depletion of ozone layer

Method for Quick Understanding:

1. Due to the current attention on pollution and ozone depletion it becomes the topic you must have a look at.

Chapter: Management of Natural Resources

Important Topics:

1. Need for Management of Natural Resources
2. Importance And Conservation Of Forest
3. Steps To Make Water Available To All

Method for Quick Understanding:

1. You must know the definition and the components of ecosystem.
2. You must know the need of conservation of natural resources and the different ways of conserving forests and water.

Chapter: Carbon and its Compounds

Important Topics:

1. Covalent bonding in carbon compounds
2. Allotropy
3. Catenation and tetravalency
4. Saturation and unsaturation in carbon compounds
5. Structure and formulas of carbon compounds
6. Structural isomers
7. Functional groups
8. Homologous series
9. Nomenclature
10. Chemical properties of carbon compounds
11. Properties of ethanol and ethanoic acid
12. Soaps and detergents: Advantages and disadvantages

Method for Quick Understanding:

1. Understand about covalent bonding and its illustration using structures of H2, N2 and O2.
2. Go through the differences between allotropes of carbon.
3. Go through the types of chemical reactions of carbon compounds.
4. Learn the formulas and structures of functional groups.

Chapter: Periodic classification of elements

Important Topics:

1. Döbereiner’s Triads
2. Newlands’ Law of Octaves
3. Mendeleev’s periodic table
4. Modern Periodic Table
5. Trends in the Modern Periodic Table

Method for Quick Understanding:

1. Understand the importance of classification of elements and how with time every scientist had contributed significantly in development of modern periodic table.
2. Understand how elements has been placed in modern periodic table on the basis of atomic number and how electronic configuration of these elements can be written.

Chapter: Light – Reflection and Refraction

Important Topics:

1. Image Formation by Spherical Mirrors
2. Refraction of Light through Glass Slab
3. Image Formation by Spherical Lenses
4. Lens Formula, Magnification and Power

Method for Quick Understanding:

1. We have already studied these topics in lower grades. But the sign convention, magnifications are new and require more attention.
2. Understanding of reflection and refraction of light is required. Images formed by mirrors and lenses are of different size and are formed at different positions. They can be virtual or real.
3. New cartesian sign conventions are used for image formations. Lens formula and mirror formulas are used to determine the positions or the height of object and image. The magnification is ratio of height of image to height of object.

Chapter: The Human Eye and The Colourful World

Important Topics:

1. Human Eye Structure
2. Defects in Vision and Corrections
3. Dispersion
4. Atmospheric Refractions
5. Scattering of Light

Method for Quick Understanding:

1. Our eye is a lens system based on refraction and forms an image on retina. The ability of eye to focus near and distant objects is called accommodation of eye. Some of us wear specs to correct this accommodation of eye or defects. These defects includes myopia, hypermetropia, presbyopia, etc.
2. The chapter also focus on some common phenomenons observed due to refraction of light through atmosphere, scattering and dispersion. A thorough reading and understanding the concepts is sufficient.

Chapter: Electricity

Important Topics:

1. Ohm’s Law and Numericals Based on It
2. Factors Affecting Resistance of a Conductor
3. Series and Parallel Combination of Resistances

Chapter: Magnetic Effects of Electric Current

Important Topics:

1. AC Generator and DC Motor
2. Domestic Electric Circuits
3. Electromagnet
4. Sources of Energy

Chapter: Sources of Energy

Important Topics:

1. Characteristics of Fuel
2. Biomass
3. Solar Cooker

Chapter: Chemical Reactions and Equations

Important Topics:

1. Balancing Chemical Equations
2. Types of Reactions
   1. Decomposition Reaction
   2. Displacement Reaction
   3. Redox Reaction

Chapter: Acids, Bases and Salts

Important Topics:

1. Acids and Bases Reactions with Metals
2. Neutralisation Reactions
3. Chemicals From Common Salt
   1. Bleaching Powder
   2. Washing Soda
   3. Water of Crystallisation

Chapter: Metals and Non-Metals

Important Topics:

1. The Reactivity Series
2. Extraction of Metals
3. Refining of Metals

Chapter: Life Processes

Important Topics:

1. Photosynthesis
2. Digestion in Humans
3. Aerobic and Anaerobic Respiration
4. Human Heart and Double Circulation
5. Transport in Plants

Chapter: Control and Coordination

Important Topics:

1. Human Brain and Its Components
2. Reflex Action
3. Human Endocrine System

Finally, do not forget to go through Board Papers of previous years. You can watch the analysis of CBSE Class 10 Science Board Exam 2017 Here. Going through these questions will surely help you boost your confidence as you prepare for your Class 10 Board Exams starting in March.

Previous Year  Papers for CBSE Class 10 Board Exams (2006 – 2017)

Paper Analysis for CBSE Class 10 Board Exams 2016

Paper Analysis for CBSE Class 10 Board Exams 2017

Have you downloaded the CBSE Board Paper Solutions App by Meritnation? It is the smartest way to prepare for Class 10 Board Exams and Class 12 Board Exams. A FREE App with previous Years’ Board Papers, (from 2006 -2017) this App makes preparing for Board Exams easy. Download App

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Team Meritnation