General Instructions:-There will be an Annual Examination based on the entire syllabus.The Annual Examination will be of 80 marks and 20 marks weightage shall be for Internal Assessment.
For Internal Assessment:
a. There will be Periodic Assessment that would include:
For 5 marks– Three periodic tests conducted by the school. Average of the best two tests
to be taken that will have a weightage of 05 marks towards the final result.
For 5 marks– Diverse methods of assessment as per the need of theclass dynamics and
curriculum transaction. These may include – short tests, oral test, quiz, concept maps,
projects, posters, presentations and enquiry based scientific investigations etc. and use
rubrics for arguing them objectively. This will also have a weightage of 05 marks towards
the final result.
b. Practical / Laboratory work should be done throughout the year and the student should maintain record of the same. Practical Assessment should be continuous. There will be weightage of 5 Marks
marks towards the final result. All practicals listed in the syllabus must be completed.
c. Portfolio to be prepared by the student- This would include classwork and other sample of
student work and will carry a weightage of 5 marks towards the final results
| No. | Unit | Marks |
| 1 | Chemical Substances-Nature and Behaviour | 25 |
| 2 | World of Living | 25 |
| 3 | Natural Phenomena | 12 |
| 4 | Effects of Current | 13 |
| 5 | Natural Resources | 5 |
| Total | 80 | |
| Internal assessment | 20 | |
| Grand Total | 100 |
Theme: Materials
Unit I: Chemical Substances – Nature and Behaviour
Chemical reactions: Chemical equation, Balanced chemical equation, implications of a balanced
chemical equation, types of chemical reactions: combination, decomposition, displacement, double displacement, precipitation, endothermic exothermic reactions, oxidation and reduction.
Acids, bases and salts: Their definitions in terms of furnishing of H+ and OH– ions, General
properties, examples and uses, neutralization, 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.
Metals and nonmetals: Properties of metals and non-metals; Reactivity series; Formation and
properties of ionic compounds; Basic metallurgical processes; Corrosion and its prevention.
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.
Theme: The World of the Living
Unit II: World of Living
Life processes: ‘Living Being’. Basic concept of nutrition, respiration, transport and excretion in plants and animals. 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.
Reproduction: Reproduction in animals and plants (asexual and sexual) reproductive health – need and methods of family planning. Safe sex vs HIV/AIDS. Child bearing and women’s health.
Heredity and Evolution: Heredity; Mendel’s contribution- Laws for inheritance of traits: Sex
determination: brief introduction: (topics excluded – evolution; evolution and classification and
evolution should not be equated with progress).
Theme: Natural Phenomena
Unit III: Natural Phenomena
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. 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 (excluding colour of the sun at sunrise and sunset).
Theme: How Things Work
Unit IV: Effects of Current
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. Magnetic effects of
current : Magnetic field, field lines, field due to a current carryingconductor, field due to current
carrying coil or solenoid; Force on current carrying conductor, Fleming’s Left Hand Rule, Direct
current. Alternating current: frequency of AC. Advantage of AC over DC. Domestic electric circuits.
Theme: Natural Resources
Unit V: Natural Resources
Our environment: Eco-system, Environmental problems, Ozone depletion, waste production and
their solutions. Biodegradable and non-biodegradable substances.
Note for the Teachers:
- The chapter Management of Natural Resources (NCERT Chapter 16) will not be assessed
in the year-end examination. However, learners may be assigned to read this chapter and
encouraged to prepare a brief write up to any concept of this chapter in their Portfolio. This
may be for Internal Assessment and credit may be given Periodic Assessment/Portfolio). - The NCERT text books present information in boxes across the book. These help students
to get conceptual clarity. However, the information in these boxes would not be assessed
in the year-end examination.
CHEMIGOD 