Syllabus
Session 2020-21
Class-X
Subject –Science
Unit Units Marks
No.
I Chemical Substances - Nature & Behaviour 26
II World of Living 23
III Natural Phenomenon 12
IV Effects of Current 14
V Natural Resources 05
Total 80
Internal assessment 20
Grand total 100
Content
Unit –I Chemical Substances – Nature and Behaviour
Ch-1: Chemical reactions and Equations- chemical equation, Balanced chemical
equation, implications of a balanced chemical equation,
Types of chemical reactions: combination, decomposition, displacement, double
displacement, precipitation, neutralisation, oxidation and reduction.
Practical No. : 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 Quick lime
(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
Ch-2: Acids, Bases and Salts-Their definitions in terms of furnishing of H+ and OH- ions,
General properties (physical and chemical 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 chloride, Sodium hydroxide, Bleaching powder,
Baking soda, Washing soda and Plaster of Paris.
Practical No. :
A)Finding the pH of the following samples by using pH paper / universal Indicator:
a) Dilute Hydrochloric acid b) Dilute NaOH solution
c) Dilute Ethanoic Acid Solution d) Lemon juice
e) Water f) Dilute Hydrogen Carbonate solution
B)Studying the properties of acids and bases (HCl & NaOH) by their reaction with:
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a) Litmus solution (Blue/Red)
b) Zinc metal
c) Solid sodium carbonate
Ch-3: Metals and Non-Metals- Properties of metals and non-metals, reactivity series,
formation and properties of ionic compounds.
Practical No. : Observing the action of Zn, Fe, Cu and Al metals on the following salt
solutions:
a) ZnSO4 (aq) (b) FeSO4 (aq) (c) CuSO4 (aq) (d) Al2(SO4)3 (aq)
Arranging Zn, Fe, Cu and Al (metals) in the decreasing order of reactivity based on the
above result.
Unit I: Chemical Substances - Nature and Behaviour
Ch-4: Carbon and its compounds- Covalent bonding in carbon compounds, Versatile
nature of carbon, Homologous series.
Ch-5 : 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
Ch-6:Life processes- "living being". Basic concept of nutrition, respiration, transport
and excretion in plants and animals.
Practical No. : Experimentally show that carbon dioxide is given out during respiration.
Ch-8 Reproduction: Reproduction in animals and plants (asexual and sexual)
reproductive health-need and methods of family planning, safe sex vs HIV/AIDS. Child
bearing and women's health.
Practical No. : Studying (a) binary fission in Amoeba, and (b) budding in yeast and
hydra with the help of prepared slides.
Ch-9 Heredity and evolution: Heredity- Mendel's contribution- Laws of inheritance of
traits, Sex determination.
Unit IV: Effects of Current
Ch-12: Current Electricity- Electric current, Potential difference and electric current.
Ohm's law; Resistance, Resistivity, Factors on which the resistance of a conductor
depends. Series combination of resistors, parallel combination of resistors and its
applications in daily life. Heating effect of electric current and its applications in daily
life. Electric power, Inter relation between P, V, I and R.
Practical No. : 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.
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Ch-13: Magnetic effects of Current- Magnetic field, field lines, field due to a current
carrying conductor, field due to current carrying coil or solenoid; Force on current
carrying conductor, Fleming's left hand rule, electric motor, electromagnetic induction,
Induced potential difference, Induced current. Fleming's Right Hand Rule.
Unit III: Natural Phenomenon
Ch-10: Light- Reflection and Refraction
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), magnification, applications of spherical mirrors, Refraction: laws of
refraction, refractive index, Refraction of light by spherical lens, Image formed by
spherical lenses, Lens formula (Derivation not required), applications of
lenses, Magnification. Power of a lens.
Ch-11: The Human Eye and the Colourful World
Refraction of light through a prism, dispersion of light, scattering of light and its
applications in daily life.
Practical No.: . Determination of the focal length of:
i) Concave mirror ii)Convex lens
by obtaining the image of a distant object.
Practical No. : 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.
Practical No. : Tracing the path of the rays of light through a glass prism.
Unit V: Natural Resources
Ch-15:Our Environment- Eco-system, Environmental problems, Ozone depletion,
waste production and their solutions, Biodegradable and non-biodegradable
substances.
ONLY FOR INTERNAL ASSESSMENT
Note: Learners are assigned to read the below listed part of Unit V. They can be
encouraged to prepare a brief write up on any one concept of this Unit in their Portfolio.
This may be 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
examination.
Management of natural resources: 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.
Internal Assessment (20 Marks)
Periodic Assessment 05 Marks + 05 Marks
Subject Enrichment (Practical Work) 05 Marks
Portfolio 05 Marks
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Assessment Areas (Theory) 2020-21
Science (086)
Time: 3 hrs Maximum Marks : 80 Marks
Competencies
Demonstrate Knowledge and Understanding 46 %
Application of Knowledge/Concepts 22 %
Analyze, Evaluate and Create 32 %
Note: • Typology of Questions:
v VSA including objective type questions, Assertion – Reasoning type
questions; SA; LA; Source-based/ Case-based/ Passage-based/ Integrated
assessment questions.
An internal choice of approximately 33% would be provided.
v An internal choice of approximately 33% would be provided.
Suggestive verbs for various competencies
• Demonstrate Knowledge and Understanding
State, name, list, identify, define, suggest, describe, outline, summarize, etc.
• Application of Knowledge/Concepts
Calculate, illustrate, show, adapt, explain, distinguish, etc.
• Analyze, Evaluate and Create
Interpret, analyze, compare, contrast, examine, evaluate, discuss, construct, etc.
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