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The National Curriculum Framework, (NCF), 2005, recommends that children’s life at school must be linked to their life outside the school. This principle marks a departure from the legacy of bookish learning which continues to shape our system and causes a gap between the school, home and community. The syllabi and textbooks developed on the basis of NCF signify an attempt to implement this basic idea. They also attempt to discourage rote learning and the maintenance of sharp boundaries between different subject areas.
NCERT Solutions for Class 10 are solved by experts of AskGuru in order to help students to obtain excellent marks in their board examination. All the questions and answers that are present in the CBSE NCERT Books has been included in this page. The CBSE Class 10 board exams are the first public exams that every student has to face. The structure of this exam is to test the candidate’s practical as well as theoretical knowledge. Hence, it is important for students to have a clear understanding of the concepts and relating them to real-world applications will help them have strong practical knowledge as well.
NCERT Solutions for Class 10 Science for all the exercises from Chapters 1 to 16 are provided here.
Chapter 1
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.
Chapter 4
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 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.
Chapter 7
Control and co-ordination in animals and plants
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.
Chapter 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.
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.
Chapter 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, Electric Generator, Direct current.
Alternating current: frequency of AC. Advantage of AC over DC. Domestic electric circuits.
Chapter 16
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; alternatives, if any.
Water harvesting. Sustainability of natural resources.
Chapter 2
Acids, bases and salts
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.
Chapter 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.
Chapter 8
Reproduction
Reproduction in animals and plants (asexual and sexual) reproductive healthneed and methods of family planning. Safe sex vs HIV/AIDS. Child bearing and women’s
health.
Chapter 11
The Human Eye and Colorful World
Functioning of a lens in human eye, defects of vision and their corrections, applications of
spherical mirrors and lenses.
Refraction of light through a prism, dispersion of light, scattering of light, applications in daily
life.
Chapter 14
Sources of energy
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.
Chapter 3
Metals and nonmetals
Properties of metals and non-metals; Reactivity series; Formation and
properties of ionic compounds; Basic metallurgical processes; Corrosion and its prevention.
Chapter 6
Life processes
‘Living Being’. Basic concept of nutrition, respiration, transport and excretion
in plants and animals.
Chapter 9
Heredity and Evolution
Heredity; Mendel’s contribution- Laws for inheritance of traits: Sex
determination: brief introduction; Basic concepts of evolution.
Chapter 12
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, Interrelation between P, V, I and R.
Chapter 15
Our environment
Eco-system, Environmental problems, Ozone depletion, waste production
and their solutions. Biodegradable and non-biodegradable substances.