CBSE Class 10 Science syllabus for 2019  exams
CBSE 10th exams 2019: The Central Board of Secondary Education (CBSE) will conduct the Class 10, 12 examinations in February for the academic year 2019. The board has already released the list of vocational subjects scheduled to be conducted during this period. To give relief to Class 10 students, the Central Board of Secondary Education has extended the passing criteria. From next year, the students need to get a minimum of 33 per cent marks in theory and practical combined to declare pass in the subject.
CBSE 10th exams 2019: Check the detail syllabus of Science
1. Acids, bases and salts: General properties, examples and uses
Types of chemical reactions: combination, decomposition, displacement, double displacement, precipitation, neutralisation, oxidation and reduction in terms of gain and loss of oxygen and hydrogen.
A brief discussion of basic metallurgical processes. Properties of common metals. Elementary idea about bonding.
Carbon compounds, the elementary idea about bonding. Saturated hydrocarbons, alcohols, carboxylic acids: (no preparation, only properties).
2.Soap – cleansing action of soap
Gradations in properties: Mendeleev periodic table.
3.The World of the Living
Our Environment: Environmental problems, what can we do? Biodegradable, nonbiodegradable. Ozone depletion.
Define ‘living’ things; Basic concept of nutrition, respiration, transport and excretion in plants and animals.
Tropic movements in plants; Introduction to plant hormones; Control and coordination in animals: voluntary, involuntary and reflex action, nervous system; chemical coordination: animal hormones.
Reproduction in plants and animals. Need for and methods of family planning. Safe sex vs. HIV/ AIDS.
Childbearing and women’s health.
Heredity; Origin of life: brief introduction; Basic concepts of evolution. 
4. Moving Things, People and Ideas
5. How things work
Potential difference, potential
Ohm’s law
Series combination of resistances
Parallel combination of resistances.
Power dissipated due to current. Inter relation between P, V, I and R.
Magnetic field Field lines
Field due to a current carrying wire. Field due to current carrying coil or solenoid.
Force on current carrying conductor Fleming’s left hand rule.
Electric motor
Electromagnetic induction.
Induced potential differences, induced current.
Electric generator. principle and working.
Direct current.
Alternating current; frequency of AC. Advantage of AC over DC.
Domestic electric circuits.
6. Natural Phenomena
Convergence and divergence of light.
Images formed by a concave mirror; related concepts centre of curvature, principal axis. Optical centre, focus, focal length.
Refraction; laws of refraction.
Images formed by a convex lens; functioning of lens in human eye; problems of vision and remedies.
Application of spherical mirrors and lenses.
Appreciation of concept of refraction; velocity of light; refractive index; twinkling of stars; dispersion of light.
Dispersion of light.
Scattering of light.
7. Natural Resources
Management of natural resources. Conservation and judicious use of natural resources. Forest and wildlife, coal and petroleum conservation.
People’s participation. Chipko movement. Legal perspectives in conservation and international scenario.
Big dams: advantages and limitations; alternatives if any. Water harvesting. Sustainability of natural resources.
Different forms of energy, leading to different sources for human use: fossil fuels, solar energy; biogas; wind, water and tidal energy; nuclear energy. Renewable versus non-renewable sources.