West Bengal Board Science Syllabus for Class 10

Class 10 
Science Syllabus

Unit 1: Chemical Reaction and some important Chemical compounds, Rate of chemical
processes & chemical balance.

* Introduction to speed of chemical processes slow & rapid processes, reversible & irreversible processes, chemical balance on the basis of speed, acid & base, Ph scale, transformation of heat during chemical processes.

Some important chemical compounds:

* Preparation of some chemical compounds properties and uses.
* Wasting soda, baking soda, bleaching powder, plaster of paris.
* Production & properties of some important building materials: cement, lime stone, glass, steel.

Unit 2: Energy

Light: Form of light, Reflection of light - Laws of reflection, reflection by smooth & rough surfaces, mirror- convex & concave formula method. Derivation of formula for mirror, magnification.

Refraction of light:
Laws of refraction, refraction by a rectangular glass slab, Images formed by concave & convex lens, formula of lens, formula method nower of lens, some natural phenomenon of light (twinkling of stars, mirage) defects of eye & their solution.

Optical Instruments: Compound microscope, construction & working of astrologer telescope.

Dispersion : Dispersion of white light by glass prism, construction of white light, colour & pigment of matter, Primary colour of light & pigments,

Electricity & its effects: Potential & Potential difference elective current, ohm's law, combination of series & parallel resistance. Heating effect of electric current & their uses, power, practical unit of electric energy, (Electrochemical effects) Chemical. effects of electric

current: Magnetic failed created dire to electric current passing through conductor straight, coil, solenoid Induced Electro magnetism, Electric motor & generator DC & AC currents, domestic electric circuits safety measures to be taken while using electric only.

Energy sources: Renewable & non-renewable energy sources - solar cooke, , solar water hater, solar cell, wind energy, water energy (tide, sea, heat, electricity) geothermal energy, wood, bio gas, hydrogen & alcohol.

Non- renewable sources - Inexhaustible fuel (coal, petroleum & natural gas), conditions of burning, selection of better fuels, efficient use of fuel, nuclear fusion nuclear , chain reaction, nuclear reactor (principle & safety measures) Advantages & hazards of nuclear energy, judicious use of energy. 

Unit 3: Life Processes - 1

* Light: forms of nutrition - autrotrophic method - hetrotophic method, saprophytes Nutrition in plants: Photosynthesis - main stages factors affecting photosynthesis, Nutrition a plants- main stages (Amoeba & locust) digestive system in human.
* Respiration: Respiration - inhalation & exhalation, Respiration in the plants & animals, types of respiration (aerobic, anaerobic) skin, gills, Respiration by respiratory track & lungs (earth worm, fish, locate & man), Respiratory organs in human, structure & their functions.
* Circulation in plants & animals, circulation in plants (water, minerals & food) Circulation in human

* Blood - constitution - functions, chatting of blood - pos itive/n egative & blood group.
* Structure & function of heart & blood vessels, circulatory system.

Excretion

* Excretion in animals (amoebae, earth worm)
* Excretion in human - osmo regulation.

Life Processes - 2.

* Symbioses in plants &4animals, onerous system, Hormone regulation. Reproduction.
* Types of reproduction (binary fission, budding and regeneration) Vegetative reproduction in plants

Reproductive cycle in man.

* reproductive cycle in female fertilization propulsion control ? sexual disease.
* Hereditary & Evolution.
* Hereditary & variation, physical basis for hereditary chromosomes (DNA) (preliminary information) genes, sex, determination of sex, preliminary conformation of evolution of life.
* Natural resources.

UNIT 4: Metals and Non-metals:

* Metals: Mineral & over metallurgy concretion of ores, extraction of metals from ores purification & ultra purification, Reactivity series of metals,- salinity & properties of common metal , alloys steel, stainless steel, brass, elements of magnesium, properties & uses, alloying of gold.
* Non -metals- Importance & common properties, preparation of hydrogen, properties uses, production of ammonia (only processes) properties, uses, production of sulfur, properties. -Properties & uses of sulfur dioxide, Production of sulfuric acid (only process), properties, uses.
* Compounds of carbon: functional groups (containing only oxygen) ethyl alcohol preparation, properties and uses, fermentation & its importance, aldehyde & ketone - formaldehyde & Acton preparation, properties & uses, preparation, properties & uses of carboxylic acid, acetic acid, some common artificial polymers, soap & detergent.

UNIT 5: Our environment

* Environment:
* Land breeze, water pollution, accumulation of waste (reasons, measures to control) biodegradable & non-biodegradable elements, environmental balance Inter relationship between _____ ? Maintenance & protection of environment- measure of preservation , Environment protection act.

UNIT 6: Universe

* Space research- solar family - planets meteors, comets , Origin & constitution, stars, constellation high sky, Milky way, galaxy, constitution of universe.
* History of space research: Information about space shuttle, different types of artificial satellites & their classes, uses of artificial satellite - communication, whether, remote sensing, programs seated to space science in India.