CBSE Class 10 Science Deleted Syllabus: Here is a link to the CBSE Class 10 Science Deleted Syllabus. Learn about the chapter-by-chapter topics that have been removed from the 2020-2021 academic session’s syllabus.
The syllabus for all Class 10 Science subjects has been drastically reduced by CBSE. Students must have a clear understanding of what they must prepare for in the second half of the academic year 2020-2021. The board has stated unequivocally that the deleted section of the syllabus will not be used for internal assessments or year-end board exams.
We’ve compiled a comprehensive list of CBSE Class 10 Science topics that have been removed from the original syllabus released at the start of the current academic year. From questions that will not be asked in the board examination, you will learn the chapter-by-chapter topics. This will undoubtedly assist you in avoiding such topics while studying Science.
CBSE Class 10 Science (086) – Deleted portion (Theory):
| Unit I: Chemical Substances – Nature and Behaviour | |
| Chapter | Topics |
| Metals and Non-metals | Basic metallurgical processes; Corrosion and its prevention. |
| Carbon Compounds | Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes and alkynes), difference between saturated hydro carbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition and substitution reaction). Ethanol and Ethanoic acid (only properties and uses), soaps and detergents. |
| Unit II: World of Living | |
| Chapter | Topics |
| Control and co-ordination in animals and plants(Whole Chapter Removed) | Tropic movements in plants; Introduction of plant hormones; Control and co-ordination in animals: Nervous system; Voluntary, involuntary and reflex action; Chemical co-ordination: animal hormones |
| Heredity and Evolution | Basic concepts of evolution |
| Unit III: Natural Phenomena | |
| Chapter | Topics |
| The Human Eye and the Colourful World | Functioning of a lens in human eye, defects of vision and their corrections, applications of spherical mirrors and lenses |
| Unit IV: Effects of Current | |
| Chapter | Topics |
| Magnetic Effects of Current : | Electric Generator, Direct current.Alternating current: frequency of AC, Advantage of AC over DC.Domestic electric circuits |
| Unit V: Natural Resources | |
| Chapter | Topics |
| Sources of Energy(Whole Chapter Deleted) | Different forms of energy, conventional and non-conventional sources of energy: Fossil fuels, solar energy; biogas; wind, water and tidal energy; Nuclear energy. Renewable versus non-renewable sources of Energy. |
| Management of Natural Resources(This chapter is to be prepared only for Internal Assessment. It will not be assessed in the Annual Board Examination) | Conservation and judicious use of natural resources. Forest and wild life; Coal and Petroleum conservation. Examples of people’s participation for conservation of natural resources. Big dams: advantages and limitations; alternatives, if any. Water harvesting. Sustainability of natural resources. |
Deleted Practicals:
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
2. Determination of the equivalent resistance of two resistors when connected in series and parallel.
3. Preparing a temporary mount of a leaf peel to show stomata.
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
5. Study of the comparative cleaning capacity of a sample of soap in soft and hard water.
6. 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.
7. Identification of the different parts of an embryo of a dicot seed (Pea, gram or red kidney bean).
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