By Ankit Gupta
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Updated on 13 Jan 2026, 07:18 IST
Class 10 Science is one of the most important subjects for board exam preparation. It covers Physics, Chemistry, and Biology, and every student feels that some chapters are very simple while others are more difficult. To prepare well, it is useful to know the toughest and easiest chapters in CBSE Class 10 Science so that students can plan their studies properly.
Some topics are short, direct, and easy to understand. These are often called the class 10 science easy chapters. For example, chapters like Our Environment, Sources of Energy, and Human Eye and the Colourful World are the *easiest chapters in class 10 science. They require less time, are simple to revise, and usually give full marks in exams. Students often say these are the easiest chapters of science class 10 because the questions are direct and scoring.
At the same time, some topics need more effort and practice. These are the toughest chapters in science class 10. Chapters like Electricity, Magnetic Effects of Electric Current, and Carbon and Its Compounds are often seen as the class 10 science hardest chapters. They include formulas, diagrams, reactions, and numerical problems, which makes them challenging. Many students find these to be the hardest part of the subject.
It is also important to remember that the idea of class 10 science easy and hard chapters can be different for each student. For example, one student may find Physics easy, while another may find it tough. Still, based on exam patterns and common experience, some chapters are usually considered easy and others tough for most students.
By understanding the hardest to easiest chapter in science class 10, students can plan their preparation better. They can give more time to the class 10 science hardest chapter while also revising the class 10 science easiest chapter for scoring high marks. This balanced approach makes preparation more effective and helps in reducing exam stress.
Before we rank chapters, it is important to know why students find certain chapters easy or tough:
Also Read: CBSE Class 10 Sample Papers 2025-26 Released
Do Check: CBSE Class 10 Science Notes
Now, let us look at the toughest chapter in science class 10 according to most students. These chapters need more time and practice.
| Difficulty Level | Chapter Name | Remarks |
| Hardest | Electricity | Tough numericals, formulas |
| Hard | Magnetic Effects of Electric Current | Rules, diagrams, numericals |
| Medium-Hard | Carbon and Its Compounds | Reactions, properties |
| Medium | Light – Reflection and Refraction | Ray diagrams, formulas |
| Medium-Easy | Periodic Classification of Elements | Memorization heavy |
| Easy | Control and Coordination | Diagrams, direct questions |
| Easier | Sources of Energy | Simple concepts |
| Easiest | Our Environment | Short, scoring |
| Easiest | Management of Natural Resources | Direct NCERT questions |
| Easiest | Human Eye and the Colourful World | Straightforward concepts |
Some chapters in Class 10 Science require extra focus. These are often considered the class 10 science hardest chapters because of complex concepts, formulas, or tricky diagrams. Here are detailed tips to handle them effectively:
Must Check: CBSE Class 10 Science 2026 Important Topics
The class 10 science easy chapters are scoring but students sometimes ignore them thinking they are too simple. These chapters can give you full marks if prepared smartly.
Do Check: NCERT Solutions for Class 10 Science
By combining these strategies—numerical practice for tough chapters and NCERT-based revision for easy ones—you can balance preparation. Remember:
