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BSE 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

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BSE 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.