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Exam Guidance To Prepare For Class 10 Science

Class 10 Science
Class 10 Science

The kind of life we lead today is the direct result of centuries and decades of intensive scientific research and development. The world we see around us ties in intricately with science. The applications of science are seen in each walk of life, from the healthcare sector to the industrial sector. Moreover, knowledge is the most important resource in any developing economy. The more knowledge we have, the more progress we are bound to make. We need not rely on other countries or their manpower to meet our requirements and necessities. 

Class 10 CBSE Science is just a stepping stone into the incredible world of science. Although the subject can seem daunting, it is quite interesting if one knows the right way to study it. However, if you are lucky enough to have an expert teacher coupled with a systematic approach to studying, you can fare very well in science and all its allied subjects. A good study timetable can work wonders here. Building these habits will also help you later in life if you choose to pursue science as a career option in higher classes. There are a lot of career options beyond the conventional realm. If you find that you have an eye for research, you could go on to become a scientist too.

CBSE Class 10 Science Syllabus

The CBSE Class 10 Science syllabus is divided into units, each comprising a number of chapters.

  • Unit 1: Chemical Substances – Nature and Behaviour – This unit holds the highest weightage out of all the other units in the NCERT science textbook. It deals mostly with chemical reactions and ionization processes alongside acids, bases, and salts. The periodic table is also explained to some extent. Classification is done between metals and non-metals and their characteristic properties are discussed. The metal reactivity series is taught and the scientific reason and reaction behind corrosion is taught. Although organic chemistry is not introduced into the syllabus formally, an elementary introduction is given regarding carbon compounds and their homologous series. Overall, a lot of questions are frequently set from this unit. You can expect at least 2 long answers from here. The chapters included are:
  • Chemical Reactions
  • Acids, Bases, and Salts
  • Metals and non-metals
  • Carbon Compounds
  • Periodic Classification of Elements


  • Unit 2: World of Living – Genetics forms a very important part of this portion of the syllabus. A plethora of questions are asked from Mendelian laws, monohybrid and dihybrid crosses, and sex determination. You are expected to make Punnett squares and explain the entire procedure in detail. Complementary to evolution, reproduction is also taught. The male and female reproductive systems are dealt with in detail. Women’s health is highlighted. The use of contraception and the practice of safe sex is advocated. Asexual modes of reproduction in plants are also explained alongside examples from daily use. Thus, in a way, this unit makes up the bulk of the CBSE biology syllabus in class 10. The various chapters under this unit are:
  • Life Processes
  • Reproduction 
  • Heredity and Evolution


  • Unit 3: Natural Phenomena – This is the most interesting unit of the whole syllabus. Reflection of light by curved surfaces is taught and the laws of refraction are introduced. Images formed by spherical mirrors are dealt with in intricate detail while dispersion and scattering of light are just taught in brief. The lens formula is taught but its derivation is restricted to higher classes. Questions are also set on magnification and the power of a lens.


  • Unit 4: Effects of Current – Current electricity can seem like a difficult topic if not understood properly. Ohm’s law is elaborated upon to explain the concepts of resistance and resistivity. Series and parallel combinations of resistors are taught. You also learn about the healing effect of electric current and its applications in daily life. In a separate chapter, the generation of a magnetic field due to the current-carrying coil or solenoid is demonstrated. An elementary idea regarding electromagnetic induction is provided.


  • Effects of Current
  • Magnetic Effects of Current


  • Unit 5: Natural Resources – The last part of the Class 10 NCERT Science textbook mostly deals with conservation and sustainability. It talks about how being environment-friendly is the need of the hour and discusses the various benefits of living a conscious lifestyle. Biodegradable and non-biodegradable materials are distinguished between while judicious use of natural resources is advocated. In addition to this, students are taught about newer methods of conservation like water harvesting. The chapters in this unit are:
  • Our Environment
  • Management of Natural Resources


Exam Guidance For Class 10 Science 

  • Seek the help of your teachers – Teachers will be able to guide their students appropriately before any examination. They will pinpoint the important areas you need to cover and clear your concepts. In case you do not understand something, do not shy away from asking for help from them.
  • Familiarise yourself with the pattern of the paper – You must always know the exact marking scheme of the question paper you are going to sit for. This will enable you to manage time efficiently. If you go in totally blank, you may end up making a lot of mistakes that could have easily been avoided otherwise.
  • Refer to Vedantu for any doubtsVedantu class 10 science notes can go a long way in helping you score good marks in class 10. They offer a range of teaching services that cover each topic from every chapter. This ensures that students are fully prepared, regardless of the difficulty of the questions asked.
  • Solve previous year papers – More often than not, questions in science are repeated. If you pick up a previous year question paper and compare it with yours, you are bound to find similarities. Always try to solve multiple such papers.

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