CBSE Board Science Syllabus for Class 9


CBSE Board Syllabus for Class 9 Science

COURSE STRUCTURE
CLASS IX 
SCIENCE

One Paper Time : 21/2 hours,  Marks : 60

THEORY 
Unit Marks
I. Food 05

II. Matter - Its nature and behaviour 15

III. Organisation in living world 13

IV. Motion, Force and Work 20

V. Our Environment 07

Unit 1 : Food

Plant and animal breeding and selection for quality improvement and management ; use of fertilizers, manures; protection from pests and diseases; organic farming.

Unit 2 : Matter - Nature and behaviour

Definition of matter; solid, liquid and gas; characteristics - shape, volume, density; change of state-melting(absorption of heat), freezing, evaporation (Cooling by evaporation), condensation, sublimation.
Nature of matter : Elements, compounds and mixtures. Heterogenous and homogenous mixtures, colloids and suspensions.
Particle nature, basic units : atoms and molecules. Law of constant proportions. Atomic and molecular masses.
Mole Concept : Relationship of mole to mass of the particles and numbers. Valency. Chemical formula of common  compounds.
Structure of atom : Electrons, protons and neutrons; Isotopes and isobars.

Unit 3 : Organization in the living world.

Biological Diversity : Diversity of plants and animals - basic issues in scientific naming, basis of classification.Hierarchy of categories / groups, Major groups of plants (salient features) (Bacteria, Thalophyta, Bryo phyta,Pteridophyta, gymnosperms and Angiosperms). Major groups of animals (salient features) (Non-chordates upto
phyla and chordates upto classes).
Cell - Basic Unit of life : Cell as a basic unit of life; prokaryotic and eukaryotic cells, multicellular organisms; cellmembrane and cell wall, cell organelles; chloroplast, mitochondria, vacuoles, ER, golgi apparatus; nucleus,chromosomes - basic structure, number.Tissues, organs, organ systems, organism. Structure and functions of animal and plant tissues (four types in animals; merismatic and permanent tissues inplants).
Health and diseases : Health and its failure. Infectious and Non-infectious diseases, their causes and manifestation.Diseases caused by microbes (Virus, Bacteria and protozoans) and their prevention, Principles of treatment andprevention. Pulse polio progra

Unit 4 : Motion, Force and Work

Motion : Distance and displacement, velocity; uniform and non-uniform motion along a straight line; acceleration,distance-time and velocity-time graphs for uniform and uniformly accelerated motion, equations of motion by graphicalmethod; elementary idea of uniform circular motion.
Force and Newton's laws : Force and motion, Newton's laws of motion, inertia of a body, inertia and mass,momentum, force and acceleration. Elementary idea of conservation of momentum, action and reaction forces.
Gravitation : Gravitation; universal law of gravitation, force of gravitation of the earth (gravity), acceleration due togravity; mass and weight; free fall.
Work, Energy and Power : Work done by a force, energy, power; kinetic and potential energy; law of conservationof energy.
Floatation : Thrust and pressure. Archimedes' principle, buoyancy, elementary idea of relative density.
Work, Energy and Power : Work done by a force, energy, power; kinetic and potential energy; law of conservationof energy.
Sound : Nature of sound and its propagation in various media, speed of sound, range of hearing in humans; ultrasound;reflection of sound; echo and SONAR.
Structure of the human ear (auditory aspect only).

Unit 5 : Our Environment

Physical resources : Air, Water, Soil.Air for respiration, for combustion, for moderating temperatures, movements of air and its role in bringing rains
across India.Air, water and soil pollution ( brief introduction). Holes in ozone layer and the probable damages.
Bio-geo chemical cycles in nature : water, oxygen, carbon, nitrogen

PRACTICALS
LIST OF EXPERIMENTS

Marks : 40 (20 + 20)
1. To prepare
a) a true solution of common salt, sugar and alum
b) a suspension of soil, chalk powder and fine sand in water
c) a colloidal of starch in water and egg albumin in water and distinguish between these on the basis of

i) transparency

ii) filtration criterion

iii) stability

2. To prepare
a) a mixture
b) a compoundusing iron filings and sulphur powder and distinguish between these on the basis of :

i) appearance i.e., homogeneity and heterogeneity

ii) behaviour towards a magnet

iii) behaviour towards carbon disulphide as a solvant.

iv) effect of heat.

3. To carry out the following chemical reactions and record observations. Also identify the type of reaction
involved in each case.

i) Iron with copper sulphate solution in water.

ii) Burning of Magnesium in air.

iii) Zinc with dilute sulphuric acid

iv) Heating of Lead Nitrate

v) Sodium sulphate with Barium chloride in the form of their solutions in water.

4. To verify laws of reflection of sound.

5. To determine the density of solid (denser than water) by using a spring balance and a measuring cylinder.

6. To establish the relation between the loss in weight of a solid when fully immersed in

i) tap water

ii) strongly salty water, with the weight of water displaced by it by taking at least two different solids.

7. To measure the temperature of hot water as it cools and plot a temperature-time graph.

8. To determine the velocity of a pulse propagated through a stretched string/slinky.

9. To prepare stained temporary mounts of (a) onion peel and (b) human cheek cells and to record observations
and draw their labeled diagrams.

10. To identify parenchyma and sclerenchyma tissues in plants, striped muscle fibers and nerve cells in animals,
from prepared slides and to draw their labeled diagrams.

11. To separate the components of a mixture of sand, common salt and ammonium chloride (or camphor) by
sublimation.

12. To determine the melting point of ice and the boiling point of water.

13. To test (a) the presence of starch in the given food sample (b) the presence of the adulterant metanil yellow in
dal.

14. To study the characteristic of spirogyra/Agaricus, Moss/Fern, Pinus ( either with male or female conre) and an
Angiospermic plant. Draw and give two identifying features of groups they belong to.

15. To observe and draw the given specimens-earthworm, cockroach, bony fish and bird. For each specimen
record
(a) one specific feature of its phylum
(b) one adaptive feature with reference to its habitat.

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