CBSE Class 10 Science Syllabus 2024–25

The CBSE Class 10 Science syllabus 2024–25 is the official roadmap for your board exam and internal assessment. So, if you want a clear study plan, begin by understanding the unit-wise marks, chapter list (Physics, Chemistry, Biology), and the practical assessment scheme. In this guide, you’ll find everything in a clean, student-friendly format—along with FAQs.

PDF Download Tip: Download the full syllabus PDF from the official CBSE website (cbse.gov.in) under the Academics/Curriculum section.

CBSE Class 10 Science Syllabus 2024–25: Overview (Marks)

Theory: 80 Marks | Internal Assessment: 20 Marks | Total: 100

CBSE Class 10 Science Chapter-Wise Syllabus 2024–25

To make preparation easier, the Science syllabus is best understood subject-wise.

Chemistry (Class 10)

• Chapter 1: Chemical Reactions and Equations

• Chapter 2: Acids, Bases and Salts

• Chapter 3: Metals and Non-metals

• Chapter 4: Carbon and its Compounds

Biology (Class 10)

• Chapter 5: Life Processes

• Chapter 6: Control and Coordination

• Chapter 7: How do Organisms Reproduce?

• Chapter 8: Heredity and Evolution

• Chapter 9: Our Environment

Physics (Class 10)

• Chapter 10: Light – Reflection and Refraction

• Chapter 11: The Human Eye and the Colourful World

• Chapter 12: Electricity

• Chapter 13: Magnetic Effects of Electric Current

Tip: Teachers may change the teaching order, but exam preparation should follow this official chapter list.

CBSE Class 10 Science Practical Assessment Scheme (20 Marks)

Internal assessment is important because it adds directly to your final score. Therefore, don’t ignore practicals even if your theory is strong.

• Periodic Assessment: 5 marks + 5 marks

• Practical Work: 5 marks

• Portfolio: 5 marks
  ✅ Total: 20 marks

Class 10 Science Practicals: Experiments List (Key Set)

Below is the commonly prescribed experiment set for Class 10 Science practicals. Additionally, schools maintain a lab manual and record work as part of assessment.

1. Study the properties of acids and bases (HCl & NaOH) using:

   • litmus (blue/red)

   • zinc metal

   • sodium carbonate

2. Perform and classify reactions as combination / decomposition / displacement / double displacement:

   • water on quicklime

   • heating ferrous sulphate crystals

   • iron nails in copper sulphate solution

   • sodium sulphate + barium chloride reaction

3. Observe action of Zn, Fe, Cu, Al on salt solutions and arrange metals in decreasing reactivity:

   • ZnSO₄, FeSO₄, CuSO₄, Al₂(SO₄)₃

4. Verify Ohm’s law: study V–I relationship, find resistance, and plot a graph.

5. Find equivalent resistance of two resistors in series and parallel.

6. Prepare a temporary mount of leaf peel to show stomata.

7. Show that CO₂ is released during respiration.

8. Study properties of acetic acid (ethanoic acid):

   • odour, solubility, litmus effect, reaction with sodium hydrogen carbonate

9. Compare cleaning capacity of a soap sample in soft vs hard water.

10. Determine focal length of:

• concave mirror

• convex lens
  (using the image of a distant object)

11. Trace ray through a rectangular glass slab; measure angles and interpret results.

12. Study binary fission in Amoeba and budding in yeast/Hydra using prepared slides.

13. Trace rays through a glass prism.

14. Identify parts of embryo in a dicot seed (pea/gram/bean).

Note: Some items may be adjusted by schools for a specific session. Always confirm the latest lab list from your teacher.

Lab Manual Topics (Quick List)

Keep these records neat and complete for practical marks:

• CO₂ during respiration

• Stomata mount

• Binary fission / budding slides

• Acids & bases reactions

• Reactivity series observation

• Types of reactions classification

• Ohm’s law and V–I graph

• Equivalent resistance (series/parallel)

• Focal length (mirror/lens)

• Glass slab and prism ray tracing

• Dicot seed embryo identification

Preparation Tips for Better Marks

First, read NCERT line-by-line for all chapters.
Next, practise diagrams, ray diagrams, and numericals regularly.
Meanwhile, revise unit-wise—start with high-weightage units (Unit I & II).
Finally, solve sample papers to improve speed and accuracy.

CBSE Class 10 Science Syllabus 2024–25 FAQs

FAQ 1. What topics are covered in the CBSE Class 10 Science syllabus 2024–25?

It includes Chemistry (Reactions, Acids-Bases-Salts, Metals-Nonmetals, Carbon Compounds), Biology (Life Processes to Environment), and Physics (Light, Human Eye, Electricity, Magnetism).

FAQ 2. What is the marks distribution for Class 10 Science?

Science is 100 marks total: 80 theory + 20 internal assessment.

FAQ 3. How many units are there in CBSE Class 10 Science?

There are 5 units: Chemical Substances, World of Living, Natural Phenomena, Effects of Current, and Natural Resources.

FAQ 4. How is the 20-mark internal assessment divided?

It is typically split into periodic assessment (10), practical work (5), and portfolio (5).

FAQ 5. From where can I download the CBSE Class 10 Science syllabus PDF?

You can download the PDF from the official CBSE website (cbse.gov.in) in the Academics/Curriculum section.

Conclusion

The CBSE Class 10 Science syllabus 2024–25 tells you exactly what to study and how marks are distributed. So, download the PDF, follow the unit-wise plan, and practice NCERT thoroughly to score better in the board exam.