Somak Chatterjee|Feb 23rd, 2013 11:02am
Dear students,
We hope that your final round of revision for the exams is going on. Here is a list of some important topics for the science examination.
|
Units |
Marks |
Important topics |
|
Chemical Substances -Nature and Behaviour |
25 |
Carbon compounds: Tetravalency and catenation, homologous series, nomenclature of carbon compounds, combustion and addition (i.e. hydrogenation) reaction, uses of Ethanol and Ethanoic acid, esterification and saponification reactions, cleansing action of soaps and detergents
Periodic classification of elements: Dobereiner’s triads, Newlands’s Law of Octaves, Limitations of Mendeleev’s periodic table, Position of hydrogen in modern periodic table, Trends of atomic size, valency, metallic and non-metallic properties in modern periodic table |
|
World of living |
30 |
Reproduction: Explanation with diagram about fission in amoeba, regeneration in planaria, fragmentation in plasmodium and budding in hydra, vegetative propagation, diagram of longitudinal section of flower, diagram of human-female reproductive system, reproductive health, sexually transmitted diseases and their prevention
Heredity and evolution: Creation of variations in a species to promote survival, sex determination in human, homologous and analogous organs, fossils |
|
Natural Phenomena |
23 |
Light: Laws of reflection, ray diagrams of concave and convex mirrors, uses of concave and convex mirror, numerical problems based of mirror formula and lens formula, laws of refraction, ray diagrams of concave and convex lenses, numerical problems based on power of lens
The human eye and the colourful world: Defects of vision and their correction i.e. myopia, hypermetropia and presbyopia, atmospheric refraction, twinkling of star, advanced sunrise and delayed sunset, scattering of light, blue colour of sky, colour of the sun at sunrise and sunset |
|
Natural Resources |
12 |
Our Environment: Eco-system and its components , food chain and food web, ozone layer, problem of waste disposal
Management of Natural Resources: 3R, sustainable management, water harvesting, coal and petroleum |
Wishing you all the very best for exams,
Team Meritnation
Add Comment Total Comments (5)
1. Asfia Khan | February 4th, 2015 at 2:09 pm
Thnkzz for the info…:)
2. Shivani | March 3rd, 2014 at 4:16 pm
precious
3. meritnation | March 4th, 2013 at 11:27 am
Thankyou for the valuable feedback Rocky! Our experst are looking into this matter.
4. rocky | March 2nd, 2013 at 11:09 pm
experts
i really ;ooke this new lok of meritnation………but iwold advise u 2 edit ur note………i mean da revision notes not at all useful …..i have paid 4 dis site…n i want 2 make da best use of it in my 12th standard……please improve revision notes…..and ur physics study matrial along wid videos as weeell…..n plzzz do it as fast as posssible 4 12th standard….bio viseos r qite useful n evn chemistry n i wud like 2 thank u 4 dat……..
5. suman | March 2nd, 2013 at 5:59 pm
experts plz give important topics for exams for 9th class sa2 plz
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