CBSE 10th Science Board Exam 2025 on February 20: 8 Key topics to focus on in Physics and Chemistry

CBSE 10th Science Board Exam 2025

The CBSE board exams are a crucial step in your academic journey, and with the right approach, you can not only score well but also build the confidence and skills needed for future challenges. To excel in these exams, it’s essential to follow a structured study plan that maximises efficiency and minimises stress. Effective preparation involves more than just completing the syllabus; it’s about adopting strategies that improve retention, time management, and exam performance.

This guide offers you a comprehensive set of study strategies, tips for tackling difficult topics, and key areas to focus on in Physics and Chemistry. By following these steps, you will not only enhance your understanding but also develop the mental and physical stamina needed to succeed on the big day. Here’s a breakdown of essential strategies and key topics to focus on for Physics and Chemistry.

To get a feel for the exam format, solve at least 10 years of previous board exam papers. Also, attempt CBSE sample papers to familiarise yourself with the pattern. This will help you understand the marking scheme and focus on chapters with higher weightage. Make it a habit to solve these papers regularly, as it will not only boost your confidence but also enhance your time management skills.

Creating mind maps is an excellent way to visualise connections between various concepts. It helps in retaining information and makes it easier to recall during exams. Dedicate a day each week to revising previously studied chapters to keep the information fresh in your mind.

Identify and dedicate extra time to subjects or chapters that you find challenging. This targeted approach will help improve your understanding and performance in these areas. Also, make sure to revise diagrams and their labelling, especially for Physics and Chemistry, as they are often crucial in solving questions.

It’s essential to maintain a productive study routine. Study in blocks of 40–50 minutes, followed by a 5–10 minute break to stay refreshed. Taking care of your health is equally important: eat nutritious food, drink plenty of water, and get enough sleep to keep your mind focused.

Every day, sit down at 10:30 AM sharp to attempt a full-length mock test or solve a past board paper. Create an exam-like environment: no distractions, no interruptions, and only allowed stationery. If sitting for 3 hours at a stretch feels daunting, this daily habit will help build both physical and mental stamina. Spend the first 15 minutes reading the question paper as per the CBSE paper pattern. Practice prioritising questions to maximise marks. This routine will help sync your body clock with exam timings, ensuring you are at your mental peak on exam day.

• Ohm’s Law, Series, and Parallel Circuits.
• Calculating resistance, current, voltage, and power.
• Heating effect of current and its applications.

• Magnetic field lines, Fleming’s Left-Hand Rule.
• Magnetic field lines for different shape conductors.
• Domestic electric circuits.

• Laws of reflection and refraction.
• Mirror and lens formulas.
• Ray diagrams for mirrors and lenses.
• Total Internal Reflection and its applications.

• Structure of the human eye, defects of vision, and their corrections.
• Dispersion of light, scattering of light, and natural phenomena like the rainbow.

• Types of chemical reactions: Combination, Decomposition, Displacement, and Redox.
• Balancing chemical equations.
• Applications of reactions (e.g., corrosion and rancidity).

• Properties and uses of acids and bases.
• pH scale and its importance (e.g., in agriculture, digestion).
• Preparation and properties of salts (e.g., baking soda, washing soda, bleaching powder).

• Physical and chemical properties of metals and non-metals.
• Corrosion and its prevention.
• Reactions of metals with water, acids, and bases.
• Roasting and calcination.

• Covalent bonding in carbon compounds.
• Homologous series and functional groups.
• Important reactions (e.g., esterification, saponification, combustion).

In conclusion, effective preparation for the CBSE board exams requires a balanced combination of strategic study habits, focused revision, and practical techniques like solving sample papers and simulating exam conditions. By incorporating these methods into your daily routine, you can not only improve your understanding of key topics in Physics and Chemistry but also build the necessary mental and physical stamina to perform at your best on exam day. Stay consistent, manage your time wisely, and prioritise your health to ensure that you're fully prepared for the challenges ahead. With the right approach, success in your CBSE exams is within reach!

About Author: Amit Sharma (IIT Roorkee) OCFP Faculty at Malad West Campus, Orchids The International School, Mumbai