TV
As Class 10 students gear up for their upcoming Science CBSE board examinations, a comprehensive understanding of key concepts across Physics, Chemistry, and Biology is essential for success.
Each subject presents unique challenges and high-scoring opportunities, making targeted preparation crucial. Here is a chapter wise breakdown of important topics that you should focus on:
Physics: Students should be thorough with important formulas and concepts, particularly Newton’s laws of motion and their applications. Practicing numerical problems on the series and parallel combination of resistances and lens and mirror questions is crucial.
Additionally, students must master diagrams such as magnetic field lines around solenoids, electric circuit diagrams, and image formation by lenses and mirrors. Reviewing previous years’ question papers will help familiarize students with the types of questions asked.
Chapter wise important topics for Physics
Light - Reflection and Refraction:
Entire chapter (forms the basis for optics), including; Properties of plain mirrors, Uses of spherical mirrors, Questions related to rearview mirrors, Standard incident rays (diagram-based questions), Refractive index, Numerical problems related to mirror and lens formulas.
The Human Eye and the Colourful World:
Defects of vision and their corrections, Refraction of light through a prism, Dispersion of light, Atmospheric refraction, Scattering of light.
Electricity:
Entire chapter, including Ohm’s Law, numerical related to resistors (series and parallel connections), factors affecting resistance, concepts related to power, and numerical for the cost of electricity bills.
Magnetic Effects of Electric Current:
Magnetic field, field lines, field due to a current-carrying conductor, field due to a current-carrying coil or solenoid, force on current-carrying conductors, Fleming’s Left Hand Rule, direct current, alternating current (frequency of AC), advantages of AC over DC, and domestic electric circuits.
Chemistry: Chemistry is a high-scoring subject that requires less preparation time. Students should learn to balance chemical equations and memorize the applications of acids, bases, and salts in everyday life. Knowing the common names, preparations, chemical formulas, and uses of salts is essential.
Focus on carbon compounds and their nomenclature, and make notes on reactions involving conversion compounds for quick revisions. Understanding the periodic table and practicing sample papers will enhance speed and accuracy.
Chapter wise important topics for Chemistry
Chemical Reactions and Equations:
Chemical equations, balancing chemical equations, types of chemical reactions, and corrosion.
Acids, Bases, and Salts:
Chemical properties of acids and bases, pH value, and salts.
Metals and Non-Metals:
Chemical properties of metals, reactions between metals and non-metals, extraction of metals, and corrosion.
Carbon and Its Compounds:
This chapter explores the covalent properties of carbon and its versatility in forming various saturated and unsaturated compounds, including branches, chains, and rings. It covers the IUPAC (International Union of Pure and Applied Chemistry) nomenclature based on functional groups.
Key topics:
Alkanes, alkenes, alkynes, isomers, allotropes of carbon, and the fundamentals of homologous series.
Four main chemical reactions: oxidation, addition, substitution, and combustion.
Properties of compounds such as ethanol and ethanoic acid.
Biology: In Biology, students must practice diagrams, including reflex action, the respiratory system, the human brain, and reproductive organs. Thorough preparation of Mendel’s experiments and inheritance traits is vital. Regular revision of complex terminologies will aid retention. Understanding the functions of reproductive organs and plant reproduction is important. Students should develop a habit of drawing neat diagrams to improve their answers and potentially increase their scores.
Chapter wise important topics for Biology
Life Processes:
Nutrition, respiration, transportation, and excretion.
Control and Coordination:
Nervous system coordination in animals and plants, and hormones in animals.
How Organisms Reproduce:
Modes of reproduction used by organisms and sexual reproduction.
Heredity and Evolution:
Entire chapter, with a focus on the sex determination aspect (a fixed question from this chapter), Mendel’s Laws of Inheritance, evolution by natural selection, and evidence of evolution.
Our Environment:
Food chains and webs, and the effects of human activities on the environment.
