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CBSE Class 10 Science Syllabus 2022-23 (Updated), Exam Pattern, Marking Scheme

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Shekhar Suman

Content Curator

The Central Board of Secondary Education (CBSE) has released the revised syllabus for CBSE Class 10 on the official website. There will be no term-wise conduct of examination, rather there will be only on Year End Exam from the A.Y. 2022-23 onwards. CBSE has decided to keep the 30% reduction of the syllabus intact from the previous trend with no other major changes.

CBSE Class 10 Science Syllabus comprises 5 units accounting for a total of 80 marks with 20 marks of Internal Assessment. The topics are based on 5 themes namely:

  • Materials,
  • The World of the Living,
  • Natural Phenomena,
  • How Things Work,
  • Natural Resources.

CBSE Class 10 Syllabus also includes a list of Practicals to be performed alongside the theory concepts being taught.

This article will discuss CBSE Class 10 Science Syllabus in detail,

CBSE Class 10 Science Course Structure

CBSE Class 10 Science Course Structure

CBSE Class 10 Science Unit-wise Weightage:

Following table enlists the CBSE Class 10 Science Unit-wise weightage:

Unit No. Unit Name Marks
1 Chemical Substances - Nature & Behavior  25 marks
2 World of Living 25 marks
3 Natural Phenomena 12 marks
4 Effects of Current 13 marks
5 Natural Resources 05 marks
Total 80 marks
CBSE Class 10 Science Syllabus

CBSE Class 10 Science Syllabus

The following table shows the CBSE Class 10 Syllabus with unit-wise topics:

Sr. No. Unit Details
1. Chemical Substances - Nature and Behavior

Chemical reactions

  • Chemical Reactions and How to Balance Chemical Reactions.
  • Types of Chemical Reactions.

Acids, bases and salts:

  • Definitions, H+ & OH-ions.
  • Properties, Examples and Uses.
  • Neutralization & Concept of pH scale.

Metals and nonmetals: 

  • Properties
  • Reactivity Series
  • Basic Metallurgical Processes 
  • Corrosion & its prevention

Carbon compounds

  • Covalent Bond & Nature of Carbon
  • Homologous Series & Nomenclature
  • Chemical Properties
2. World of Living

Life processes

  • Concept of Living Beings
  • Concept of Life Processes in Plants & Animals

Control and coordination in animals and plants

  • Tropic Movements & Plant Hormones.
  • Control & Coordination in animals, Reflex Actions
  • Nervous System & Chemical Coordination.
  • Animal Hormones.

Reproduction:

  • Reproduction in Plants & Animals
  • Reproductive Health

Heredity and Evolution

  • Concepts of Heredity
  • Mendel’s Laws for inheritance of traits.
3. Natural Phenomena

Reflection & Refraction:

  • Reflection of light by curved surfaces
  • Refraction of light by spherical lens
  • Images formed by spherical mirrors and lenses
  • Mirror Formula & Lens Formula

Concept of Human Eye

Refraction through a Prism.

4. Effects of Current

Electric Current:

  • Potential Difference & Electric Current
  • Ohm’s Law & Concept of Resistance of Conductor
  • Series & Parallel Combination of Resistors with application.
  • Heating Effects of current with applications
  • Electric Power & Interrelation between P, V, I, R.

Magnetic Effects of Current

  • Magnetic field and Field due to a Current carrying Conductor
  • Force on current carrying conductor & Fleming’s Left Hand Rule,
  • Alternating Current
5. Natural Resources

Our Environment

  • Eco-system, 
  • Environmental problems, Ozone depletion, 
  • Waste Production and their solutions.
  • Biodegradable and non-biodegradable substances.
CBSE Class 10 Science Practical List

CBSE Class 10 Science Practical List

CBSE has prescribed 14 Practicals as part of the CBSE Class 10 Science Syllabus. The table below enlists the CBSE Class 10 Science Practicals.

Sr. No. Unit No. Experiment
1. Unit 1 A. Finding the pH of the following samples by using pH paper/universal indicator:
  • Dilute Hydrochloric Acid
  • Dilute NaOH solution
  • Dilute Ethanoic Acid solution
  • Lemon juice
  • Water
  • 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. Unit 1 Performing and observing the following reactions and classifying them into
  1. Combination reaction
  2. Decomposition reaction
  3. Displacement reaction
  4. Double displacement reaction
    1. Action of water on quicklime
    2. Action of heat on ferrous sulfate crystals
    3. Iron nails kept in copper sulfate solution
    4. Reaction between sodium sulfate and barium chloride solutions
3.  Unit 1 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.  Unit 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.  Unit 4 Determination of the equivalent resistance of two resistors when connected in series and parallel.
6.  Unit 2 Preparing a temporary mount of a leaf peel to show stomata.
7.  Unit 2 Experimentally show that carbon dioxide is given out during respiration.
8.  Unit 1 Study of the following properties of acetic acid (ethanoic acid): Unit- I
  • Odor
  • Solubility in water
  • Effect on litmus
  • Reaction with Sodium Hydrogen Carbonate
9.  Unit 1 Study of the comparative cleaning capacity of a sample of soap in soft and hard water.
10.  Unit 3 Determination of the focal length of: Unit-III
  • Concave mirror
  • Convex lens
by obtaining the image of a distant object.
11.  Unit 3 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.  Unit 2 Studying (a) binary fission in Amoeba, and (b) budding in yeast and Hydra with the help of prepared slides.
13.  Unit 3 Tracing the path of the rays of light through a glass prism.
14.  Unit 2 Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean).
Prescribed Books for CBSE Class 10 Science

Prescribed Books for CBSE Class 10 Science

Following table includes the list books prescribed by CBSE for Class 10 Science:

Name of Book Publication
Science-Text book for class X NCERT Publication
Assessment of Practical Skills in Science- Class X CBSE Publication
Laboratory Manual-Science-Class X NCERT Publication
Exemplar Problems Class X NCERT Publication
CBSE 10 Science Question Paper Design

CBSE Class 10 Question Paper Design

CBSE Class-10 Exam Paper Pattern for Science is designed to assess students on 3 parameters as shown below along with the Typology of the Questions asked in CBSE Class 10 Science Exam;

Types of Questions Asked:

  • Very Short Answer (VSA) - objective type questions, 
  • Assertion – Reasoning type questions; 
  • Short Answer & Long Answer; 
  • Source-based/ Case-based/ Passage-based/ Integrated assessment questions.
Parameters Percentage
Understanding & Knowledge Demonstration 46%
Concepts & Knowledge Applications 22%
Formulation, Analysation, Evaluation and Creativity 32%
Total 100%
CBSE 10 Science Syllabus: Preparation Tips

CBSE 10 Science Syllabus: Preparation Tips 

  • Fundamentals & Basic Concepts: Science is all about Theories, Concepts and Formulae. To get a good hold on Science and perform well in Exams, one must have a clear understanding of the underlying principles and concepts.
  • Learning Process: One cannot effectively study science by mugging it. Learn the concepts with examples and applications. Read and understand the underlying theory for every concept. Read, understand and then derive formulae on your own and solve problems based on them, this way you won’t have to memorize every formula if you know what it means, what it is used for and how it is acquired.
  • Study Everyday: No matter how mundane it may seem, studying for even a small period of time everyday will help you acquire better results. Consistency in short bursts of study everyday will beat long hours of study on exam night.
  • Practice: There is no alternative to practice. Science, like mathematics, requires consistent practice to hone the skills and concepts. Practice with textbook examples, Previous-Year Question Papers, Sample Question Papers.
  • Practicals: Rather than memorizing practicals, Understand the steps, their needs and their outcomes. This will help you understand the practical and perform the same promptly.
  • Time Management: Time management is one of the key components in acing the CBSE Class 10 Science Exam. To cover the vast amount of syllabus and then attempting the entire question paper in a particular period of time requires a good hold on time management. Plan your routine during exam week, plan how you will attempt the questions presented in front of you and proceed accordingly.
Frequently Asked Questions

FAQs

Ques.: Will there be a Practical Exam for CBSE Class 10 Science?

Ans.: Yes, CBSE affiliated schools are instructed to conduct Practical Exams for CBSE Class 10 Science Syllabus on the institution level, i.e., there will be no external examiner for CBSE Class 10 Science Practical Exam.

Ques.: What is the Passing Percentage for CBSE Class 10 Science Exam?

Ans.: According to CBSE, students are required to acquire a minimum of 33% marks including both theory and practical in order to clear the CBSE Class 10 Science Exam successfully.

Ques.: Will there be an Internal Assessment for CBSE Class 10 Science?

Ans.: Yes, there will be an Internal Assessment of 20 marks added to the theory component to grade the students out of 100 marks. The internal assessment will be divided into:

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

Ques.: Will there be any choice provided for the CBSE Class 10 Science Syllabus?

Ans.: No, there will be no choice provided among the units in CBSE Class 10 Science Syllabus; however, there will be an internal choice provided among the questions asked in the CBSE Class 10 Science Question Paper.

Ques.: Is the CBSE Class 10 Science Syllabus 2022 reduced?

Ans.: Yes, CBSE has reduced the CBSE Class 10 Science Syllabus 2022 by 30% under which few topics are omitted along with the Chapter 16 - Management of Natural Resources, which will not be assessed for the Year End Exam.

*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.

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