CBSE Class 10 Science Syllabus 2021-2022

Class 10 is one of the most challenging years of a student’s life because the students will be appearing for their first board exams. CBSE syllabus for Class 10 Science for academic year 2021-2022 is compiled in accordance with the guidelines laid down by the Board. Students should go through the Class 10 Science Syllabus to know the topics and sub-topics of the subject. The CBSE Syllabus also includes unit wise marking scheme, practicals, assignments and projects. The CBSE Class 10 Science Syllabus is designed in such a way that it helps students to plan their study schedule according to the board exams.

In the CBSE Class 10 Science Syllabus pdf 2021-22, students will find the unit names, chapters under each unit and subtopics under each chapter. Along with this they will also get the detailed practical Syllabus of Class 10 Science.

CBSE Class 10 Science Syllabus for Academic Year 2021-22

Students can download the latest released CBSE Syllabus for Class 10 Science Academic Year 2021-22 from the link below. They can also access the Science learning outcomes pdf.

CBSE Class 10 Science Course Structure 2021-22 With Marking Scheme

As students can see in the table below that the Class 10 CBSE Science Syllabus is divided into 5 units with unit 1 carrying the higher weightage of 25 marks among all.

Unit No. Unit Marks
I Chemical Substances-Nature and Behaviour 25
II World of Living 23
III Natural Phenomena 12
IV Effects of Current 13
V Natural Resources 07
Total 80
Internal assessment 20
Grand Total 100

Students can also check the syllabus for all the subjects of Class 10 by clicking on CBSE Syllabus for Class 10 page.

CBSE Class 10 Science Assessment Areas (Theory)

Time: 3 hrs.
Maximum Marks: 80 Mark

Demonstrate Knowledge and Understanding 46%
Application of Knowledge/Concepts 22%
Analyze, Evaluate and Create 32%


  • Typology of Questions: VSA including objective type questions, Assertion – Reasoning type questions; SA; LA; Source-based/ Case-based/ Passage-based/ Integrated assessment questions.
  • An internal choice of approximately 33% would be provided.

Internal Assessment (20 Marks)

  • Periodic Assessment – 05 marks + 05 marks
  • Subject Enrichment (Practical Work) – 05 marks
  • Portfolio – 05 marks

To get all the study material related to class 10, visit the CBSE Class 10 page.

CBSE Practical Syllabus for Class 10 Science

As internal assessment consist of 20 marks so students must not ignore the importance of practicals. Along with the theory they should also focus on practicals. This will not only help them in scoring high marks but also understanding the theory concepts through practicals and experiments. So, here we have provided the CBSE Class 10 Science Practical syllabus. Go through it and the experiment list. Students can also download the CBSE Class 10 Science lab Manual. It provides an idea on new Science projects, list of experiments and activities.

List of Class 10 Science Experiments

1. A. Finding the pH of the following samples by using pH paper/universal indicator: Unit-I
(i) Dilute Hydrochloric Acid
(ii) Dilute NaOH solution
(iii) Dilute Ethanoic Acid solution
(iv) Lemon juice
(v) Water
(vi) Dilute Hydrogen Carbonate solution

B. Studying the properties of acids and bases (HCl & NaOH) on the basis of their reaction with:

  • Litmus solution (Blue/Red)
  • Zinc metal
  • Solid sodium carbonate

2. Performing and observing the following reactions and classifying them into:

A. Combination reaction
B. Decomposition reaction
C. Displacement reaction
D. Double displacement reaction

i) Action of water on quicklime
ii) Action of heat on ferrous sulphate crystals
iii) Iron nails kept in copper sulphate solution
iv) Reaction between sodium sulphate and barium chloride solutions

3. Observing the action of Zn, Fe, Cu and Al metals on the following salt solutions:

  • ZnSO4(aq)
  • FeSO4(aq)
  • CuSO4(aq)
  • Al2(SO4)3(aq)

Arranging Zn, Fe, Cu and Al (metals) in the decreasing order of reactivity based on the above result.

4. Studying the dependence of potential difference (V) across a resistor on the current (I) passing through it and determine its resistance. Also plotting a graph between V and I.

5. Determination of the equivalent resistance of two resistors when connected in series and parallel.

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

7. Experimentally show that carbon dioxide is given out during respiration.

8. Study of the following properties of acetic acid (ethanoic acid):
i) Odour
ii) solubility in water
iii) effect on litmus
iv) reaction with Sodium Hydrogen Carbonate

9. Study of the comparative cleaning capacity of a sample of soap in soft and hard water.

10. Determination of the focal length of:

  • Concave mirror
  • Convex lens

by obtaining the image of a distant object.

11. Tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. Measure the angle of incidence, angle of refraction, angle of emergence and interpret the result.

12. Studying (a) binary fission in Amoeba, and (b) budding in yeast and Hydra with the help of prepared slides.

13. Tracing the path of the rays of light through a glass prism.

14. Finding the image distance for varying object distances in case of a convex lens and drawing corresponding ray diagrams to show the nature of image formed.

15. Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean).

By now students must have got to know the CBSE Class 10 Science Syllabus 2021. To get the detailed Maths Syllabus visit the CBSE Syllabus for Class 10 Maths link. Learn Maths & Science in an interactive and fun-loving way with BYJU’S App/Tablet.

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