Class 8 Science is one of the most conceptually rich subjects at the middle school level. It lays the groundwork for Physics, Chemistry, and Biology topics you will encounter in Class 9 and 10 — making conceptual clarity at this stage absolutely critical. Students who build strong fundamentals here find the transition to secondary science significantly smoother.
For the academic session 2025–26, NCERT has introduced a brand-new Science textbook titled Curiosity — developed under NEP 2020 and aligned with the NCF-SE 2023 framework. The book reduces rote-memorisation content and emphasises activity-based, inquiry-led learning with real-world applications.
The table below provides a snapshot of everything you need to know about Class 8 Science before you begin your preparation.
|
Detail |
Information |
|
Subject |
Science (Class 8) |
|
NCERT Textbook (2025–26) |
Curiosity |
|
Exam Level |
Middle School (Matriculate) |
|
Total Chapters |
13 (new Curiosity book) |
|
Marks Distribution |
Theory (80) + Internal Assessment (20) = 100 |
|
Subjects Covered |
Physics, Chemistry, Biology |
|
Framework |
NEP 2020 / NCF-SE 2023 |
|
Official NCERT Website |
ncert.nic.in |
Important for 2025–26: Schools affiliated with CBSE have transitioned to the new Curiosity textbook. If you are still using the older NCERT Science book (which had 18 chapters), confirm with your school which edition is being followed for your exams.
The Class 8 Science syllabus 2025-26 follows the newly introduced NCERT Curiosity textbook, which brings 13 carefully structured chapters. These span three core science disciplines — Biology, Physics, and Chemistry — giving students a well-rounded scientific foundation. Rather than treating these as separate subjects, the book integrates them to show how science connects across disciplines and to real life.
Knowing the full syllabus before you start studying is the single most effective preparation habit. It helps you identify high-weightage chapters, plan your timetable intelligently, and avoid studying topics that no longer appear in your exam.
The table below lists all 13 chapters from the new NCERT Curiosity textbook for Class 8 Science. Each chapter is tagged by discipline — Biology, Physics, or Chemistry - to help you plan a balanced study schedule and understand which branch of science each topic falls under.
|
Chapter |
Chapter Name |
Discipline |
|
Ch 1 |
Exploring the Investigative World of Science |
Biology / General |
|
Ch 2 |
The Invisible Living World: Beyond Our Naked Eye |
Biology |
|
Ch 3 |
Health: The Ultimate Treasure |
Biology |
|
Ch 4 |
Particulate Nature of Matter |
Chemistry |
|
Ch 5 |
Nature of Matter: Elements, Compounds, and Mixtures |
Chemistry |
|
Ch 6 |
Force and Pressure |
Physics |
|
Ch 7 |
Friction |
Physics |
|
Ch 8 |
Sound |
Physics |
|
Ch 9 |
Electricity: Magnetic and Heating Effects |
Physics |
|
Ch 10 |
Light |
Physics |
|
Ch 11 |
Some Natural Phenomena |
Physics |
|
Ch 12 |
The Environment: Our Life Support System |
Biology |
|
Ch 13 |
Our Home: Earth, a Unique Life Sustaining Planet |
Biology |
All 13 chapters are considered important for examination purposes. While different schools and boards may allocate chapters across Term I and Term II differently, your school's academic calendar will determine the term-wise split. Focus on conceptual clarity across all chapters rather than selective study.
Understanding the exam pattern before you start studying gives you a strategic advantage. The Class 8 Science exam is divided into two components: a Theory paper (80 marks) and an Internal Assessment (20 marks), totalling 100 marks. The internal assessment includes assignments and project work set by individual schools and boards.
The theory paper follows a mixed question format, testing both short-answer recall and longer analytical thinking. The table below breaks down the question pattern for the 80-mark Class 8 Science theory exam. Understanding how many questions appear at each mark level helps you allocate study time wisely — longer answers need deeper conceptual understanding, while 1-mark questions reward quick recall.
|
Question Type |
Number of Questions |
Marks Each |
Total Marks |
|
Very Short Answer |
12 |
1 |
12 |
|
Short Answer |
12 |
2 |
24 |
|
Long Answer I |
8 |
3 |
24 |
|
Long Answer II |
4 |
5 |
20 |
|
Total |
36 |
— |
80 |
Note: The exact question pattern may vary from school to school and board to board. Always verify the pattern with your school's academic schedule. The 2025–26 NCERT framework also places greater emphasis on competency-based and application-oriented questions, so thorough concept understanding matters more than rote memorisation.
The internal assessment component is entirely school-driven. It typically includes periodic tests, assignments, practical work, and project submissions. Since these 20 marks are within your full control, consistent effort throughout the year in class activities and practicals gives you a strong cushion in your final score.
Each chapter in the NCERT Curiosity textbook includes exercise questions, activity-based tasks, and in-text questions designed to reinforce your understanding of the concepts covered. Solving these questions is the most direct way to prepare for exams, since CBSE exam papers are heavily drawn from NCERT content.
|
Chapter |
Chapter Name |
|
Ch 1 |
Exploring the Investigative World of Science |
|
Ch 2 |
The Invisible Living World: Beyond Our Naked Eye |
|
Ch 3 |
Health: The Ultimate Treasure |
|
Ch 4 |
Particulate Nature of Matter |
|
Ch 5 |
Nature of Matter: Elements, Compounds, and Mixtures |
|
Ch 6 |
Force and Pressure |
|
Ch 7 |
Friction |
|
Ch 8 |
Sound |
|
Ch 9 |
Electricity: Magnetic and Heating Effects |
|
Ch 10 |
Light |
|
Ch 11 |
Some Natural Phenomena |
|
Ch 12 |
The Environment: Our Life Support System |
|
Ch 13 |
Our Home: Earth, a Unique Life Sustaining Planet |
Science and Maths are the two most scoring subjects in school — if your fundamentals are solid, full marks are genuinely achievable. The key is not studying more hours, but studying smarter. Here are the most effective, expert-recommended strategies for Class 8 Science preparation in 2025–26.
Solving the NCERT textbook exercises builds your conceptual base. But to truly excel — and to aim for top scores — you need to go further. Chapter-wise sample papers, mock tests, and important question sets expose you to a wider range of problems on the same topics, training your brain to apply concepts flexibly rather than just recall them.
Career Launcher's Tuitions FREEZONE is a free platform offering a library of resources tailored to Class 8 Science students.
The new NCERT Science textbook for Class 8 (academic session 2025-26) is titled Curiosity. It was developed under NEP 2020 and the NCF-SE 2023 framework, replacing the older Science textbook. The book contains 13 chapters that integrate Physics, Chemistry, and Biology through an inquiry-based, activity-driven approach. It is available in PDF format on the official NCERT website at ncert.nic.in.
The new NCERT Curiosity textbook for Class 8 Science contains 13 chapters. This is a change from the older NCERT Science book, which had 18 chapters. The reduction was intentional — the new curriculum removes overlapping and non-essential content to allow students to focus on core concepts with greater depth.
The Class 8 Science exam carries a total of 100 marks: 80 marks for the Theory paper and 20 marks for Internal Assessment (assignments and project work set by your school). The 20-mark internal component is entirely within your control through regular class participation, practicals, and on-time assignment submission.
Yes, absolutely. Class 8 acts as a conceptual bridge between the foundational middle school years and the more demanding Class 9 and 10 curriculum. Topics like Force and Pressure, Light, Chemical Effects, and Microorganisms directly build toward content covered in Class 9 and 10 board exams. Students who develop strong conceptual clarity in Class 8 consistently find Class 9 Science easier to navigate.
Follow these steps for the best results:
All 13 chapters carry examination value and should be studied thoroughly. That said, Physics chapters - particularly Force and Pressure (Ch 6), Friction (Ch 7), Sound (Ch 8), Electricity (Ch 9), and Light (Ch 10) - typically appear with higher frequency in both school tests and competitive foundation exams. Biology chapters like The Invisible Living World (Ch 2) and Health (Ch 3) are also high-yield for exam preparation.
Career Launcher's Tuitions FREEZONE offers free chapter-wise NCERT solutions, sample papers, concise chapter notes, and important question sets for Class 8 Science — all aligned with the 2025-26 Curiosity textbook. You can also download chapter-wise PDFs from the solutions table on this page. The official NCERT textbook is available at ncert.nic.in.
Yes. The NCERT Curiosity textbook is designed with a strong emphasis on hands-on learning. Each chapter includes activity boxes, simple experiments, and observation-based tasks. These practicals contribute to the 20-mark Internal Assessment component and are also crucial for understanding theoretical concepts more deeply.