SECOND TERM
CLASS X
Second Term Marks : 80
Units Marks
Units Marks
| I. | Chemical Substances -Nature and Behaviour |
21
|
|
| II. | World of living |
27
|
|
| III. | Natural Phenomena |
26
|
|
| IV | Natural Resources |
06
|
Theme : Materials (25 Periods) Unit : Chemical Substances - Nature and Behaviour
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 hydrocarbons 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.
Periodic classification of elements : Need for classification, Modern Periodic table, gradation in Properties, valency, Atomic number, metallic and non-metallic properties.
Theme : The world of The Living (30 Periods) Unit : World of living
Reproduction : Reproduction in animal and plants (asexual and sexual) reproductive health-need for and methods of family planning. safe sex vs HIV/AIDS. Child bearing and women's health.
Heridity and evolution : Heredity; Mendel's contribution- Laws for inheritance of traits: Sex determination: brief introduction; Basic concepts of evolution.
Theme : Natural Phenomena (23 Periods)
Unit : Reflection of light at 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.
Theme : Natural Resources (12 Periods) Unit : Conservation of natural resources
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.
The Regional environment : Big dams : advantages and limitations; alternatives if any. Water harvesting. Sustainability of natural resources.
Our environment : Eco-system, Environmental problems, Ozone depletion, waste production and their solutions. Biodegradable and non-biodegradable, substances.
PRACTICALS
Practical should be conducted alongside the concepts taught in theory classes
SECOND TERM
1. a) To observe the action of Zn, Fe, Cu and Al metals on the following salt solutions. 4
i. ZnSO4(aq.) ii. FeSO4 (aq.) iii. CuSO4 (aq.) iv. Al2SO4(aq.)
b) Arrange Zn, Fe, Cu and Al metals in the decreasing order of reactivity based on the above result.
2. To study the following properties of acetic acid (ethanoic acid) :
i) odour
ii) solubility in water iii) effect on litmus
iv) reaction with sodium bicarbonate
3. To determine the focal length of i. Concave mirror
ii. Convex lens
by obtaining the image of a distant object.
4. To trace the path of a ray of light passing through a rectangular glass slab for different angles of incidence.
Measure the angle of incidence, angle of refraction, angle of emergence and interpret the result.
5. To study (a) binary fission in Amoeba and (b) budding in yeast with the help of prepared slides.
6. To determine the percentage of water absorbed by raisins.