Syllabus 2009: Science and Technology, Class X

December 11, 2008 by  
Filed under Class X Syllabus

SYLLABUS

CBSE MARCH 2009 EXAMS

CLASS-X

Science (Theory)

Time Duration: 2 ½ Hours

Maximum Marks: 60

UNIT TOPIC MARKS
I Chemical Substances 18
II World of living 16
III Effects of Current 10
IV Light 08
V Natural Resources 08
Total 60

Type of Questions:

The question paper consists of:

  1. open-ended questions
  2. drawing/illustrations based questions
  3. communication-skill based questions and
  4. activity-based questions.

About 20% weight-age has been assigned to questions testing higher order thinking skills of learners.

Theme: Materials

Unit 1: Chemical Substances – Nature and Behaviour

1. Acids, bases and salts:

General properties, examples and uses.

2. Chemical reactions:

Types of chemical reactions: combination, decomposition, displacement, double, displacement, precipitation, neutralization, oxidation and reduction in terms of gain and loss of oxygen and hydrogen.

3. Metals and non metals:

Brief discussion of basic metallurgical processes. Properties of common metals. Elementary idea about bonding.

4. Carbon Compounds:

Carbon compounds, elementary idea about bonding. Saturated hydrocarbons, alcohols, carboxylic acids (no preparation, only properties).

Some Important chemical compounds: Soap-cleansing action of soap.

5. Periodic classification of elements:

Gradations in properties: Mendeleev periodic table.

Theme: The world of the living

Unit 2: Our environment

1. Our environment:

Environmental problems, their solutions. Biodegradable, non biodegradable, ozone depletion.

2. Life Processes:

“living” things; Basic concept of nutrition, respiration, transport and excretion in plants and animals.

3. Control and Co-ordination in plants and animals:

Tropic movements in plants; Introduction to plant hormones;

control and co-ordination in animals: voluntary, involuntary and reflex action, nervous system;

chemical co-ordination: animal hormones.

4. Reproduction:

Reproduction in plants and animals. Need for and methods of family planning. Safe Sex vs HIV/AIDS. Child bearing and women’s health.

5. Heridity and evolution:

Heridity; Origin of life: brief introduction; Basic concepts of evolution.

Theme: How things work

Unit 3: Effects of Current

1. Potential:

Potential difference, Ohm’s law; Series combination of resistors, parallel combination of resistors; Power dissipation due to current; Inter relation between P, V, I and R.

2. Magnets:

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. Electro magnetic induction. Induced potential difference, Induced current. Direct current. Alternating current; frequency of AC. Advantage of AC over DC. Domestic electric circuits.

Theme: Natural Phenomena

Unit 4: Light

Convergence and divergence of light.

Images formed by a concave mirror; related concepts; centre of curvature; principal axis. Optic centre, focus, focal length.

Refraction; laws of refraction.

Image formed by a convex lens; functioning of a lens in human eye; problems of vision and remedies. Applications of spherical mirrors and lenses.

Appreciations of concept of refraction; velocity of light; refractive index; twinkling of stars; dispersion of light. Scattering of light.

Theme: Natural Resources

Unit 5: Conservation of natural resources

Management of natural resources. Conservation and judicious use of natural resources. Forest and wild life, coal and petroleum conservation. People’s participation. Chipko movement. Legal perspectives in conservation and international scenario.

The Regional environment

Big dams: advantages and limitations; alternatives if any. Water harvesting. Sustainability of natural resources.

Sources of energy: 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.

PRACTICALS

LIST OF EXPERIMENTS

Maximum Marks: 40

1. To find the pH of the following samples by using pH paper/universal indicator.

i) Dilute Hydrochloric acid

ii) Dilute NaOH solution

iii) Dilute Ethanoic acid solution

iv) Lemon juice

v) Water

vi) Dilute Sodium Bicarbonate Solution.

2. To study the properties of acids and bases HCl & NaOH by their reaction with

i) Litmus solution (Blue/Red)

ii) Zinc metal

iii) Solid Sodium Carbonate

3. To determine the focal length of

a) Concave mirror

b) 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 the dependence of current (I) on the potential difference (V) across a resistor and determine its resistance. Also plot a graph between V and I.

6. To determine the equivalent resistance of two resistors when connected in series.

7. To determine the equivalent resistance of two resistors when connected in parallel.

8. To prepare a temporary mount of a leaf peel to show stomata.

9. To show experimentally that light is necessary for photosynthesis.

10. To show experimentally that carbon dioxide is given out during respiration.

11. To study (a) binary fission in Amoeba and (b) budding in yeast with the help of prepared slides.

12. To determine the percentage of water absorbed by raisins.

13. To prepare SO2 gas, observe its following properties and draw inferences in respect of

i) odour

ii) solubility in water

iii) effect on litmus paper

iv) action on acidified potassium dichromate solution.

14.

a) To observe the action of Zn, Fe, Cu and Al metals on the following salt solutions.

i) ZnSO4 (aq.)

ii) FeSO4 (aq.)

iii) CuSO4 (aq.)

iv) Al2 (SO4)3 (aq.)

b) Arrange Zn, Fe, Cu and Al metals in the decreasing order of reactivity based on the above result.

15. 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

Scheme of Evaluation for Practical Exam:

1. External Examination (to be conducted by the Board through multiple choice type written test): 20 Marks

2. School-based hands-on practical examination: 20 Marks

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