CBSE Class 10 2025 Science: Paper Design | Weightage | Marks | Important Topics | Preparation Tips

  • ALLEN Overseas
  • April 18, 2024
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CBSE Class 10 2025 Science: Embarking on the journey of studying CBSE Class 10 Science can be breathtaking and daunting for students. It is among the core subjects and holds immense importance in academics and shaping future career paths. With a wide range of topics from Physics,  Chemistry, and Biology, mastering CBSE Class 10 Science requires dedication, systematic planning, and a comprehensive understanding of the syllabus, exam pattern, and marking scheme. This blog aims to give students valuable insights into important topics, paper patterns, chapter-wise weightage, and effective preparation tips to easily ace the CBSE Class 10 2025 Science examination.

CBSE Class 10 2025 Science Paper Design:

Theory Paper Design (80 Marks):

S.No Competencies Total (in %)
1. Demonstrate Knowledge and Understanding 46%
2. Application of Knowledge or Concepts 22%
3. Formulate, Analyse, Evaluate, and Create 32%
Total 100%

Internal Assessment Design (20 Marks):

S.No Type of Assessment Marks
1. Periodic Assessment 5 + 5 Marks
2. Subject Enrichment (Practical Work) 5 Marks
3. Portfolio 5 Marks
Total 20 Marks

Class 10 Board Science Unit-wise Weightage:

Unit Unit Name Marks
I Chemical Substances- Nature and Behaviour 25
II World of Living 25
III Natural Phenomena 12
IV Effects of Current 13
V Natural Resources 05
Total 80

Class 10 Board Science Chapter-wise Weightage:

Unit Unit Name Chapter Name Marks
I Chemical Substances- Nature and Behaviour Chemical Reactions and Equations 6
Acid, Bases and Salts 3
Metals and Non-Metals 10
Carbon and its Compounds 6
II World of Living Life Processes 9
Control and Coordination 6
How do Organisms Reproduce? 3
Heredity and Evolution 7
III Natural Phenomena Light- Reflection and Refraction 10
The Human Eye and the Colourful World 2
IV Effects of Current Electricity 7
Magnetic Effects of Electric Current 6
V Natural Resources Our Environment 5

Important Topics:

Subject Unit Name Chapter Name Important Topic
Chemistry Chemical Substances- Nature and Behaviour Chemical Reactions and Equations
  • Types of Chemical Reactions
  • Balancing Chemical Equations
  • Decomposition Reactions
  • Endothermic Exothermic Reactions
  • Oxidation & Reduction
Acid, Bases and Salts
  • Importance of pH in everyday life
  • Difference Between Acid and Base
  • Properties of Bases
  • Difference Between Baking Soda and Baking Powder
  • Dipole Moment
Metals and Non-Metals
  • Properties of Metals and Non-Metals
  • Reactivity Series
  • Metallurgy
  • Corrosion and its prevention
Carbon and its Compounds
  • Nomenclature of Carbon Compounds
  • Chemical Properties of Carbon Compounds
  • Ethanol & Ethanoic Acid
  • Homologous Series
Biology World of Living Life Processes
  • Nutrition
  • Respiration
  • Transport & Excretion
Control and Coordination
  • Nervous System
  • Introduction of Plant Hormones
  • Chemical Coordination: Animal Hormone
How do Organisms Reproduce?
  • Asexual & Sexual Reproduction
  • Reproduction in Animals
  • Reproduction in Plants
Heredity and Evolution
  • Heredity
  • Mendels Contribution
  • Laws for Inheritance of traits
Natural Resources Our Environment
  • Eco-system
  • Biodegradable Substances
  • Non-Biodegradable Substances
  • Ozone Depletion
Physics Natural Phenomena Light- Reflection and Refraction
  • Laws of Reflection & Refraction
  • Refractive Index
  • Lens Formula
  • Mirror Formula
  • Refraction of Light by Spherical Lenses
The Human Eye and the Colourful World
  • Defects of Vision and Their Correction
  • Applications of Spherical Mirrors & Lenses
Effects of Current Electricity
  • Electric Current and Circuit
  • Ohm’s Law
  • Resistance and Resistivity
  • Series & Parallel Combination of Resistors
  • Electric Power
Magnetic Effects of Electric Current
  • Magnetic Field and Field Lines
  • Electromagnetic Induction
  • Fleming’s Left-Hand Rule
  • Alternating Current
  • Advantages of AC over DC
  • Magnetic field due to current carrying coil or solenoid.

Preparation Tips:

  1. Grasp the Fundamentals: With a strong foundation and in-depth knowledge, passing any exam with good marks is possible. For CBSE Class 10 Board exams, NCERT is the key to success.
  2. Familiarise yourself with the Syllabus & Exam Pattern: The most important thing that every student should remember before appearing for any exam is to familiarise themselves with the syllabus and exam pattern. This will help you plan your studies accordingly.
  3. Create a Study Plan: After familiarising yourself with the exam pattern and syllabus, create a perfect timetable that suits you. Allot equal time to all the three subjects. Dedicate a time slot for practice and solving the questions.
  4. Visualise Your Learning: Use diagrams, visuals, flow charts, and mind maps to enhance learning.
  5. Learn Theorems/ Derivations/ Formulas: To score good marks in the science paper, it is important to learn theorems/ derivations/ formulas. Make a separate notebook and write down all the important formulas/ derivations. This will help you revise them during the exam’s last days.
  6. Practice with CBSE Sample Papers: Solving CBSE sample question papers will help you become familiar with the paper pattern and the type of questions asked in the exams.

Frequently Asked Questions:

Ques: Will the exam pattern for Class 10 change for Session 2024-25?

As per the latest announcement by the CBSE, there will be no change in the exam pattern for Class 10.

Ques: Will the CBSE Class 10 Board Exam be conducted twice yearly for sessions 2024-25?

There is no official information related to this yet. We advise you to stay updated with the latest information the CBSE shares.

Ques: Where can I find the CBSE Class 10 Sample Papers?

Visit the official website of CBSE. You can find subject-wise sample papers there.

Ques: Is there any change in the CBSE Class 10 Syllabus for the academic year 2024-25?

No update related to any change in the CBSE Class 10 syllabus for the academic year 2024-25.

Ques: What is the CBSE Class 10 examinations 2024-25 marking scheme?

The CBSE Class 10 examinations are worth 80 marks, out of which 20 marks are allotted for internal assessment.

Keep learning and shining; we wish you all the best in your future endeavours.

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