CBSE Class 10(Science) New Syllabus 2020-21

CBSE Class 10(Science) New Syllabus 2020-21

Ed Tech
11 Jul 2020
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CBSE New Syllabus Class 10 (Science)

This is the new syllabus announced by CBSE on 7 July.

Now, this syllabus applied to your upcoming board examinations so students give your 100% to complete this syllabus and give your best performance.

So you people do not have to worry about anything because this syllabus is very useful for preparing you.

The new session has just started and you guys start studying now so that you don't have any problem in the exam.

Hope you work hard

Theme: Materials

Unit I: Chemical Substances - Nature and Behavior

Chemical reactions: Chemical equation, Balanced chemical equation, implications of a

balanced chemical equation, types of chemical reactions: combination, decomposition,

displacement, double displacement, precipitation, neutralization, oxidation, and reduction.

Acids, bases and salts: Their definitions in terms of furnishing of H+ and OH- ions, General

properties, examples and uses, concept of pH scale (Definition relating to logarithm not

required), importance of pH in everyday life; preparation and uses of Sodium Hydroxide,

Bleaching powder, Baking soda, Washing soda and Plaster of Paris.

Metals and nonmetals: Properties of metals and non-metals; Reactivity series; Formation and properties of ionic compounds.

Carbon compounds: Covalent bonding in carbon compounds. Versatile nature of carbon.

Homologous series.

Periodic classification of elements: Need for classification, early attempts at

classification of elements (Dobereiner’s Triads, Newland’s Law of Octaves,

Mendeleev’s Periodic Table), Modern periodic table, gradation in properties, valency,

atomic number, metallic and non-metallic properties.

Theme: The World of the Living

Unit II: World of Living

Life processes: ‘Living Being’. Basic concept of nutrition, respiration, transport and excretion

in plants and animals.

Reproduction: Reproduction in animals and plants (asexual and sexual) reproductive health-

need and methods of family planning. Safe sex vs HIV/AIDS. Childbearing and women’s


Heredity: Heredity; Mendel’s contribution- Laws for inheritance of traits: Sex determination:

brief introduction;

Theme: Natural Phenomena

Unit III: Natural Phenomena

Reflection of light by curved surfaces; Images formed by spherical mirrors, centre of curvature,

principal axis, principal focus, focal length, mirror formula (Derivation not required),


Refraction; Laws of refraction, refractive index.

Refraction of light by spherical lens; Image formed by spherical lenses; Lens formula

(Derivation not required); Magnification. Power of a lens.

Refraction of light through a prism, dispersion of light, scattering of light, applications in daily


Theme: How Things Work

Unit V: Natural Resources

Our environment: Eco-system, Environmental problems, Ozone depletion, waste production

and their solutions. Biodegradable and non-biodegradable substances.


Note: Learners are assigned to read the below-listed part of Unit V. They can be

encouraged to prepare a brief write up on anyone's concept of this Unit in their Portfolio.

This maybe an assessment for Internal Assessment and credit may be given (Periodic assessment/Portfolio). This portion of the Unit is not to be assessed in the year-end


Management of natural resources: Conservation and judicious use of natural resources.

Forest and wildlife; Coal and Petroleum conservation. Examples of people’s participation in

conservation of natural resources. Big dams: advantages and limitations; alternatives, if any. Water harvesting. Sustainability of natural resources.

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