CBSE Class 10 Science Syllabus 2018 - 2019
CBSE Class 10 Science syllabus is compiled in accordance w⟋guidelines laid down by board. As per assessment scheme introduced in Class 10 from last session, 2017 - 18, now class 10 students are assessed on basis of final exam in all scholastic subjects carrying 100 marks.
It is composed of 80 marks component for board examination & 20 marks component for Internal Assessment (IA) .
IA comprises Periodic Tests (PT) w⟋weightage of 10 marks, Notebook Submission of 5 marks & Subject Enrichment Activities of 5 marks.
General Instructions
- Out of 80 marks annual examination, 68 marks weightage is for theory & 12 marks weightage is for practical based questions.
- For internal assessment
- 3 periodic tests are conducted by school. Average of best 2 tests is calculated w⟋having weightage of 10 marks towards final result.
- Practical⟋Laboratory work should be done throughout year as it carries weightage of 5 marks towards final result.
- Class work & home assignment completion along w⟋neatness & upkeep of notebook carries weightage of 5 marks towards final result.
CBSE Class 10 Science Unit-Wise Weightage
Unit No. | Unit Name | Marks |
I | Chemical Substances - Nature & Behaviour | 08 |
II | World of Living | 17 |
III | Natural Phenomena | 04 |
IV | Effects of Current | 28 |
V | Natural Resources | 13 |
Total | 80 | |
Internal assessment | 20 | |
Grand Total | 100 |
Theme: Materials
Unit I: Chemical Substances-Nature and Behaviour
(55 Periods)
Chemical reactions:
- Chemical equation,
- Balanced chemical equation,
- Implication of 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 + & OH- ions, General properties, examples & uses, concept of pH scale (Definition relating to logarithm not required) , importance of pH in everyday life; preparation & uses of Sodium Hydroxide, Bleaching powder, Baking soda, Washing soda & Plaster of Paris.
Metals and nonmetals: Properties of metals & non-metals; Reactivity series; Formation & properties of ionic compounds; Basic metallurgical processes; Corrosion & its prevention.
Carbon compounds: Covalent bonding in carbon compounds. Versatile nature of carbon. Homologous series. Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes & alkynes) , difference b⟋w saturated hydrocarbons & unsaturated hydrocarbons. Chemical properties of carbon compunds (combustion, oxidation, addition & substitution reaction) . Ethanol & Ethanoic acid (only properties & uses) , soaps & detergents.
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 & non-metallic properties.
Theme: The World of the Living
Unit II: World of Living
(50 Periods)
Life processes: Living Being. Basic concept of nutrition, respiration, transport & excretion in plants & animals.
Control & co-ordination in animals & plants: Topic movements in plants; Introduction of plant hormones; Control & co-ordination in animals; Nervous system; Voluntary, involuntary & reflex action; Chemical co-ordination: animal hormones.
Reproduction: Reproduction in animals & plants (asexual & sexual) reproductive health-need & methods of family planning. Safe sex vs HIV⟋AIDS. Child bearing & women՚s health.
Heredity and Evolution: Heredity; Mendel՚s contribution - Laws for inheritance of traits: Sex determination: brief introduction; Basic concepts of evolution. s
Theme: Natural Phenomena
Unit III: Natural Phenomena
(23 Periods)
- 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.
- 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 lens.
- Functioning of lens in human eye, defects of vision & their corrections, applications of spherical mirrors & lenses.
- Refraction of light thru prism, dispersion of light, scattering of light, applications in daily life.
Theme: How Things Work
Unit IV: Effects of Current
(32 Periods)
Electric current, potential difference & electric current. Ohm՚s law; Resistance, resistivity, Factors on which resistance of conductor depends. Series combination of resistors, parallel combination of resistors & its applications in daily life. Heating effect of electric current & its applications in daily life. Electric power, Interrelation b⟋w P, V, I & R.
Magnetic effects of current: Magnetic field, field lines, field due to 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, Electric Generator, Direct Current. Alternating current: frequency of AC. Advantage of AC over DC. Domestic electric circuits.
Theme: Natural Resources
Unit V: Natural Resources
(20 Periods)
Sources of energy: Diff. forms of energy, conventional & non-conventional sources of energy: Fossil fuels, solar energy; biogas; wind, water & tidal energy; Nuclear energy. Renewable v⟋s non-renewable sources of Energy.
Our environment: Eco-system, Environmental problems, Ozone depletion, waste production & their solutions. Biodegradable & non-biodegradable substances
Management of natural resources: Conservation & judicious use of natural resources. Forest & wild life; Coal & Petroleum conservation. Examples of people՚s participation for conservation of natural resources. Big dams: advantages & limitations; alternatives, if any. Water harvesting. Sustainability of natural resources.
Practicals
Praticals should be conducted alongside concepts taught in theory classes.
List of Experiments:
- Finding pH of following samples by using pH paper⟋universal indicator:
- Dilute Hydrochloric Acid
- Dilute NaOH solution
- Dilute Ethanoic Acid Solution
- Lemon juice
- Water
- Dilute Hydrogen Carbonate solution
- Studying properties of acids & bases (HCl & NaOH) by their reaction with:
- Litmus solution (Blue⟋Red)
- Zinc metal
- Solid sodium carbonate
- Performing & observing following reactions & classifying them into:
- Combination reaction
- Decomposition reaction
- Displacement reaction
- Double displacement reaction
- Action of water on quick lime
- Action of heat on ferrous sulphate crystals
- Iron nails kept in copper sulphate solution
- Reaction b⟋w sodium sulphate & barium chloride solutions
Or
- Observing action of Zn, Fe, Cu & Al metals on following salt solutions:
- ZnSO4 (aq)
- FeSO4 (aq)
- CuSO4 (aq)
- Al2 SO43 (aq)
Arranging Zn, Fe, Cu & Al (metals) in decreasing order of reactivity based on above result.
- Studying dependence of potential difference (V) across resistor on current (I) passing thru it & determine its resistance. Plotting graph b⟋w V & I.
- Determination of equivalent resistance of 2 resistors when connected in series & parallel.
- Preparing temporary mount of leaf peel to show stomata.
- Experimentally show that carbon dioxide is given out during respiration.
- Study of following properties of acetic acid (ethanoic acid) :
- Odour
- Solubility in water
- Effect on litmus
- Reaction w⟋sodium Hydrogen Carbonate
- Study of comparative cleaning capacity of sample of soap in soft & hard water.
- Determination of focal length of Concave mirror & Convex lens by obtaining image of distant object.
- Tracing path of ray of light passing thru rectangular glass slab for diff. angles of incidence. Measure angle of incidence, angle of refraction, angle of emergence & interpret result.
- Studying (a) binary fission in Amoeba & (b) budding in yeast w⟋help of prepared slides.
- Tracing path of rays of light thru glass prism.
- Finding image distance for varying object distances in case of convex lens & drawing corresponding ray diagrams to show nature of image formed.
- Identification of diff. parts of embryo of dicot seed (Pea, gram or red kidney bean) .
✍Examrace Team at Aug 20, 2021