The Class 10 Science Board Exam 2026 is the first major academic milestone for every student. Whether you are under the CBSE or GSEB board, the pressure to perform is real. With a vast syllabus spanning Physics, Chemistry, and Biology, students often ask: “Which chapters should I prioritize to score 95+?”
At Prarambh Academy, we believe in Smart Work over Hard Work. By focusing on the high-weightage chapters first, you can secure nearly 70% of your marks with only 40% of the effort. This guide breaks down the most important chapters for Class 10 Science to help you dominate your 2026 boards.
At Prarambh Academy, we believe in Smart Work over Hard Work. By focusing on the high-weightage chapters first, you can secure nearly 70% of your marks with only 40% of the effort. This guide breaks down the most important chapters for Class 10 Science to help you dominate your 2026 boards.
The Strategic Blueprint
Before diving into specific chapters, let’s look at the “big picture.” Both CBSE and GSEB follow a similar unit-wise weightage that highlights where the “big marks” are hidden.
| Unit Name | Subject | Weightage (Approx) |
|---|---|---|
| Chemical Substances | Chemistry | 25 Marks |
| World of Living | Biology | 25 Marks |
| Natural Phenomena | Physics | 12 Marks |
| Effects of Current | Physics | 13 Marks |
| Natural Resources | Biology/Env | 05 Marks |
Biology
Biology often carries the highest weightage in the Science paper. For the 2026 Board Exams, examiners are shifting toward competency-based questions that require deep understanding rather than rote memorization.
Life Processes (Weightage: 9-10 Marks)
This is arguably the most critical chapter in the entire syllabus. It covers the four pillars of survival: Nutrition, Respiration, Transportation, and Excretion.
- Must-know topics : Double circulation in humans, the mechanism of urine formation (Nephron), and the process of photosynthesis.
- Pro-Tip : Practice drawing the Human Heart and Alveoli diagrams. A neat, labeled diagram can fetch you full marks even if your theory is brief.
Control and Coordination (Weightage : 6 Marks)
With the 2026 pattern emphasizing analytical skills, this chapter is vital for understanding how the human body responds to stimuli.
- Key Focus : Reflex action, human brain functions, and the role of hormones like Insulin and Adrenaline.
How Do Organisms Reproduce? (Weightage: 6-8 Marks)
This chapter is a favorite for long-answer questions.
- High-ROI Topics : Sexual reproduction in flowering plants and the female reproductive system.
Chemistry
Chemistry in Class 10 is all about chemical reactions and their practical applications. If you master the equations, these marks are the easiest to secure.
Metals and Non-Metals (Weightage: 10 Marks)
In the 2026 syllabus, this chapter holds massive weightage. It bridges the gap between theoretical properties and industrial applications.
- Focus Areas : The Reactivity Series, ionic compounds, and the extraction of metals (Metallurgy).
- Exam Alert : Questions on Corrosion and its prevention are almost guaranteed.
Carbon and Its Compounds (Weightage: 6 Marks)
Many students find this “tough,” but it is actually very logical.
- What to study : Covalent bonding, Homologous series, and the chemical properties of Ethanol and Ethanoic Acid.
Acids, Bases, and Salts (Weightage: 3-5 Marks)
- Must-Master : The importance of pH in everyday life and the preparation/uses of common salts like Baking Soda and Plaster of Paris.
“The secret to scoring in Science isn’t just knowing the answer, but knowing how to present it. For 2026, the boards are looking for keywords and step-wise logic. If you get the keywords right, the marks follow.” — Senior Faculty, Prarambh Academy.
Physics
Physics is the section where most students lose marks due to calculation errors or incorrect ray diagrams.
Light : Reflection and Refraction (Weightage: 10 Marks)
This is the highest-weightage chapter in Physics. It requires a mix of drawing skills and mathematical accuracy.
- The Blueprint : Master the Mirror Formula and Lens Formula.
- Warning : Pay extra attention to Sign Conventions ($+v$ vs $-v$). One wrong sign can ruin a 5-mark numerical.
Electricity (Weightage: 7-9 Marks)
- High-Priority : Ohm’s Law, factors affecting resistance, and the Joule’s Law of Heating.
- Practice : Solving circuits with series and parallel combinations of resistors.
Feeling overwhelmed by Physics numericals? Join our specialized “Science Concept Mastery” batches at Prarambh Academy. We make complex concepts as simple as ABC.
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Environmental Science : The "Free" Marks
Our Environment (Weightage: 5 Marks)
Do not ignore this chapter! It is short, easy to understand, and carries 5 “free” marks.
- Key Topics : Food chains, Ozone layer depletion, and the flow of energy in an ecosystem.
How to Prepare for 2026 : The Prarambh Strategy
At Prarambh Academy, we don’t just complete the syllabus; we prepare you for the battle. Here is our recommended study plan :
- The NCERT Bible : 90% of the board paper comes directly from NCERT. Read every line, including the “blue box” questions and activities.
- The 10-Year Rule : Solve at least 10 previous years’ question papers. Patterns repeat, and so do questions. You can find resources on the Official CBSE website to understand the latest marking schemes.
- Diagram-A-Day : Spend 15 minutes daily practicing one diagram from Biology or Physics.
- Bilingual Clarity : For our GSEB students in Gandhinagar, we explain concepts in English and Gujarati to ensure that language never becomes a barrier to understanding Science.
Comparison : High Weightage vs. Low Weightage Chapters
| High-Weightage (Focus First) | Moderate Weightage | Low Weightage (Revise Last) |
|---|---|---|
| Life Processes | Control & Coordination | Human Eye |
| Metals & Non-Metals | Electricity | Magnetic Effects |
| Light (Reflection/Refraction) | Acids, Bases, & Salts | Our Environment |
| Carbon Compounds | Reproduction | Heredity |
Why Parents Trust Prarambh Academy in Gandhinagar
We are recognized as the best coaching institute in Raysan, Randesan, and Kudasan because we focus on the individual. Our Class 10 Science program includes :
- Small Batch Sizes : For personalized doubt-solving.
- Experienced Faculty : Teachers who are experts in board paper patterns.
- Digital Learning : Visualizing 3D models of the heart or electric circuits.
- Performance Tracking : Regular tests with detailed feedback to parents via our app.
Frequently Asked Questions (FAQs)
Q1: Which is the hardest chapter in Class 10 Science?
Most students find Carbon and its Compounds or Electricity challenging due to the concepts and numericals. However, with the right guidance, these are actually very scoring.
Q2: Are diagrams compulsory in the Science Board Exam?
Yes! Diagrams in Biology and Ray Diagrams in Physics carry specific marks. Even if the question doesn’t explicitly ask for one, drawing a neat diagram can improve your overall impression.
Q3: Is NCERT enough for a 95+ score?
NCERT is the foundation. However, practicing from the NCERT Exemplar and solving Sample Papers is essential to tackle the “Case-Based” and “Assertion-Reason” questions introduced in the 2026 pattern.
Conclusion
The secret to topping the Class 10 Science Board Exam 2026 is not about studying everything at once, it’s about studying the right things at the right time. By prioritizing Life Processes, Metals & Non-Metals, and Light, you are already halfway to an A1 grade.
Stay consistent, practice your numericals, and don’t let the pressure get to you. At Prarambh Academy, we are committed to turning your potential into performance.
Stay consistent, practice your numericals, and don’t let the pressure get to you. At Prarambh Academy, we are committed to turning your potential into performance.