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CBSE Class 10 Science

CBSE Class 10 Science

Starting to study CBSE Class 10 Science can be both exciting and challenging for students. It's a core subject that plays a vital role in academics and future career choices. Covering a variety of topics in Physics, Chemistry, and Biology, mastering this subject requires commitment, careful planning, and a better understanding of the syllabus, exam pattern, and marking scheme. This blog aims to provide students with useful information on chapter-wise weightage, and effective preparation tips to help them succeed in the CBSE Class 10 Science exam for 2025.

1.0CBSE Class 10 Science Syllabus

The syllabus of CBSE class 10 science is given below:

Units

Chapters

Practicals

Unit I: Chemical Substances - Nature and Behaviour

Chemical Reactions

1. 

A. Finding the pH of the following samples by using pH paper/universal indicator: 

(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: 

a) Litmus solution (Blue/Red) 

b) Zinc metal 

c) 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: 

(i) ZnSO4(aq) 

(ii) FeSO4(aq) 

iii) CuSO4(aq) 

iv) Al2(SO4)3(aq) 

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

4. 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

Acids, Bases and Salts

Metals and Nonmetals

Carbon Compounds

Unit II: World of Living 

Life Processes

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

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

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

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

Control and co-ordination in Animals and Plants

Reproduction

Heredity and Evolution

Unit III: Natural Phenomena

Reflection and Refraction

1.Determination of the focal length of:

i) Concave mirror ii) Convex lens by obtaining the image of a distant object. 

2. 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. 

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

Unit IV: Effects of Current

Electric current

1. 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.

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

Magnetic effects of current

Unit V: Natural Resources

Our environment

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2.0CBSE Class 10 Science Books

NCERT CBSE Class 10 Science textbooks are essential for student learning. They provide clear explanations and in-depth understanding of concepts, helping students grasp the subject better. For Class 10 CBSE students, NCERT books are the primary resource because they offer straightforward explanations, solved examples, and closely follow the syllabus. These books provide a structured approach to learning, making them crucial for preparing for CBSE exams.

3.0CBSE Class 10 Science Chapter-wise Weightage

Unit Name

Chapter Name

Total Marks

Chemical Substances- Nature and Behaviour

Chemical Reactions and Equations

06

Acid, Bases and Salts

03

Metals and Non-Metals

10

Carbon and its Compounds

06

World of Living

Life Processes

09

Control and Coordination

06

How do Organisms Reproduce?

03

Heredity and Evolution

07

Natural Phenomena

Light- Reflection and Refraction

10

The Human Eye and the Colourful World

02

Effects of Current

Electricity

07

Magnetic Effects of Electric Current

06

Natural Resources

Our Environment

05

Also Check: Class 10 Science Previous Year Question Papers 2024

4.0Class 10 Mock Test

Mock tests are crucial in a student's academic journey. Regular practice with mock tests helps students understand the exam pattern, question types, and time management strategies. They also highlight areas where students need improvement and offer a chance to sharpen problem-solving skills, leading to better exam performance. Moreover, mock tests help reduce exam anxiety by making students more familiar with the exam format.

5.0Class 10 Science Preparation Tips

Grasp the Fundamentals: Building a strong foundation with thorough understanding helps achieve high marks in any exam. For CBSE Class 10 Board exams, NCERT books are essential for success.

Familiarize Yourself with the Syllabus & Exam Pattern: Before taking any exam, it's crucial to know the syllabus and exam pattern. This knowledge will help you plan your studies effectively.

Create a Study Plan: Once you're familiar with the exam pattern and syllabus, create a study timetable that suits you. Allocate equal time to Physics, Chemistry, and Biology, and include time for practice and solving questions.

Visualize Your Learning: Enhance your understanding by using diagrams, visuals, flow charts, and mind maps.

Learn Theorems, Derivations, and Formulas: To score well in science, it's important to learn key theorems, derivations, and formulas. Maintain a separate notebook for important formulas and derivations, making it easier to revise them closer to the exam.

Practice with CBSE Class 10 Science Sample Papers: Solving sample papers will help you understand the exam format and the types of questions that are likely to appear, aiding in better preparation. Students can also visit official website for sample questions.

Solve Previous Year Question Papers: Practicing previous year question paper cbse class 10 science helps students become familiar with the exam pattern and types of questions. By solving these papers, scoring full marks becomes more achievable and realistic.

Frequently Asked Questions:

You can find subject-wise sample papers on the official CBSE website.

There has been no update regarding any changes to the CBSE Class 10 syllabus for the 2024-25 academic year.

The CBSE Class 10 examinations are worth 80 marks, with an additional 20 marks allocated for internal assessment.

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