CBSE Class 10 Science Revision Notes

Introduction to CBSE Exam

The Central Board of Education is a national body administered by the Government of India. The CBSE follows the curriculum provided by the National Council of Educational Research and Training (NCERT). Several private and public schools are affiliated with the CBSE Board, which is responsible for conducting the board examinations of Class 10 and 12. The CBSE curriculum prepares students for school examinations and national entrance examinations like NEET, JEE, AIIMS, etc.

CBSE Class 10 Science

The Class 10 exams are very prominent in a students’ educational life. In this year, students will pay complete attention and eliminate all distractions. They have to study 5 to 7 subjects, and not every student excels. In fact, many students regarded Class 10 Science to be challenging for them. Students are advised to study and revise with the help of a detailed CBSE class 10 Science notes to get a good grip of the subject. They need to put in consistent efforts and practice as much as possible.

Science is not a complicated subject, but it is very demanding. The subject is about learning, understanding, researching, and practising. Including the CBSE class, 10 Science notes in their daily studies will help the students understand the concepts and keep a note of all key points and themes in the chapter.

CBSE Class 10 Science Notes

With the CBSE Class 10 Science Notes, students need not worry about finding various study materials. These notes include well-clarified topics with solved examples and explanations of various experiments. The 10 Class Science notes help students get a clear insight into all the important concepts from the exam point of view. In addition, it makes revising easier and quicker.

The CBSE Class 10 Science Notes includes all three disciplines Physics, Chemistry, and Biology. Biology also includes topics based on environmental science. The book is further subdivided into five units. The CBSE Class 10 Science Notes helps the students attain high scores in examinations as it provides an introduction to basic concepts and a clear understanding of the complex topics and important questions. With the help of these notes, the students get an edge and can get ahead of their competitors. Students who spend more time revising the CBSE Class 10 Science notes develop a proper study methodology to succeed academically.

Chapter-wise CBSE 10 Class Science notes

There are 16 chapters included in the CBSE Class 10 Science Notes. Students may refer to the notes to revise the entire syllabus by clicking on the chapter-wise links mentioned below.

Chapter 1 – Chemical Reactions and Equations

  • Writing and balancing chemical equations
  • Different types of chemical reactions
  • Corrosion & Rancidity

Chapter 2 – Acids, Bases and Salts

  • Chemical properties of acids and bases
  • The reaction between acids and bases
  • Strengths of acid or base solutions
  • Importance of pH
  • Nature and formation of different salts
  • Common salt

Chapter 3 – Metals and Non-Metals

  • Physical and Chemical properties of metals and non-metals
  • Chemical Reactions
  • Occurrence and extraction
  • Corrosion and its prevention

Chapter 4- Carbon and Its Compounds

  • Carbon Compounds
  • Homologous Series
  • Nomenclature
  • Chemical Properties of Carbon Compounds

Chapter 5- Periodic Classification of Elements

  • Dobereiner’s Triads
  • Newlands’ Law Of Octaves
  • Mendeleev’s Periodic Table
  • The Modern Periodic Table

Chapter 6- Life Processes

  • What is the Life Process?
  • Nutrition in Organisms
  • Nutrition in human beings
  • Excretion

Chapter 7- Control and Coordination

  • The nervous system of human beings
  • Reflex actions
  • Nervous tissues
  • Coordination In Plants
  • Hormones in animals

Chapter 8- How do Organisms Reproduce

  • Modes of asexual reproduction
  • Sexual reproduction in flowering plants
  • Reproduction in Human Beings
  • Reproductive systems in the human
  • Reproductive Health
  • Birth control

Chapter 9- Heredity and Evolution

  • Variations in different generations
  • Heredity
  • Inheritance of Traits
  • Mendel’s experiments
  • Sex determination
  • Evolution
  • Speciation

Chapter 10- Light Reflection and Refraction

  • Reflection of light
  • Image formation by spherical mirrors
  • Mirror formula and magnification
  • Refraction of Light
  • Refraction through a rectangular glass slab and spherical lenses
  • Refractive index
  • Sign Convention for refraction by spherical lenses
  • Lens Formula and Magnification
  • Power of Lens

Chapter 11- Human Eye and Colorful world

  • Structure and working of the human eye
  • Power of accommodation
  • Defects of vision and their correction
  • Refraction of light through a prism
  • Dispersion
  • Atmospheric refraction
  • Scattering of light

Chapter 12- Electricity

  • Electric current
  • Potential difference
  • Ohm’s law
  • Resistivity
  • Resistors in series and parallel and their advantage
  • Joule’s law
  • Electric fuse
  • Power

Chapter 13- Magnetic Effects of Electric Current

  • Magnetic field and its representation as field lines
  • Magnetic field due to current carrying conductor, through a straight conductor, circular loop
  • Right-hand thumb rule
  • Magnetic field due to a current in a solenoid
  • Force on a current carrying conductor in a magnetic field
  • Electric motor
  • Electromagnetic induction
  • Electric generator
  • Domestic electric circuits

Chapter 14- Sources of Energy

  • Ideal source of energy
  • Conventional sources of energy
  • Biomass and wind energy
  • Non-Conventional Sources of Energy
  • Renewable and non-renewable sources of energy

Chapter 15- Our Environment

  • Ecosystem and its components
  • Food chains and webs
  • Ozone Layer and its depletion

Chapter 16- Management of Natural Resources

  • Natural resources and their management
  • Management of forests and wildlife
  • Dams
  • Water harvesting
  • Management of fossil fuels

The CBSE Class 10 science notes compiled by Extramarks are detailed and easy to understand. Students may refer to them during exams to revise or just as study material to understand the various concepts and topics that are a part of the syllabus.

Class 10 Science – Marking Scheme

The CBSE Science exam is divided into two components – Theory Paper and Practicals (Internal Assessment). The board conducts the 80 Marks theory paper. The schools affiliated with CBSE are responsible for conducting the 20 marks Practical Exams. CBSE syllabus aims at practical and job-oriented knowledge. The CBSE Class 10 science notes prepare the students for their examination and allow them to revise the entire syllabus with almost no time.

The marking scheme of CBSE class 10 based on the five units is given in the table below:

Sr. No. Unit Name Marks





Chemical Substances

World of living

Natural phenomena

Current and its Effects

Natural Resource






CBSE Class 10 Science Notes by Extramarks

Extramarks offers Chapter-wise CBSE Class 10 Science notes covering all important topics from Chemical reactions to equations in the entire CBSE syllabus. The CBSE revision notes are prepared by a panel of subject matter experts after analyzing many CBSE previous year question papers. By referring to these notes, students can attain maximum marks in the Class 10 examination.

The CBSE Class 10 Science notes include a summary, key points, formulas, and a detailed explanation of textual and exercise questions to better comprehend chapters. In addition, Extramarks prepares many CBSE sample papers, mock tests, and CBSE extra questions with utmost precision. Students can benefit from these CBSE class 10 Science notes as they are a highly recommended study resource for 10th board exam preparation.

It is important for students to plan a timetable and study using good 10th CBSE science notes, NCERT books, and practice consistently to succeed in their exams. This will allow them to choose the desired stream for their higher studies. Students may refer to the below links to get more details on the 10th CBSE science notes.

FAQs (Frequently Asked Questions)

1. What are the benefits of CBSE Class 10 Science Notes?

The CBSE Class 10 Science Notes help students in the following ways:

  • They cover all essential topics
  • They help students to understand chapters in a better way
  • They help in quick revision
  • They save time and also help students to develop time-management skills.

2. Which are the best reference books with the CBSE class 10 Science notes?

Along with the CBSE class 10 Science notes, Students are advised to be careful while choosing their study materials. For improved performance, students should use the following reference books:

  • Physics, Biology, and Chemistry by Lakhmir Singh and Manjit Kaur
  • Principles of Physics S Chand books by N.k Chowdhry
  • Fundamentals of Physics by Pradeep publication