Cbse class 9 science syllabus 2010-11 - http://cbse.edurite.com/cbse-science/cbse-syllabus-for-class-9-science.html

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4. SCIENCE
(Code No. 086 / 090)
The subject ofScience plays animportant role indeveloping in children well-defined abilities incognitive,
affective and psychomotordomains. It augments thespirit ofenquiry, creativity, objectivityand aesthetic sensibility.
Whereas theupper primarystage demandsthat plentifulopportunities shouldbe provided to thestudents to engage
themwiththeprocesses ofscience likeobserving, recording observations, drawing, tabulation, plotting graphs etc.,
the secondarystage expects abstraction and quantitative reasoning to occupya more centralplacein the teaching
and learning of Science. Thus, the idea of atoms and molecules being the building blocks of matter makes its
appearance, as does Newton's law ofGravitation.
The present syllabus has been designed around six broad themes viz. Food, Materials, The World ofThe Living,
How Things Work, Moving Things, People and Ideas, NaturalPhenomenon and NaturalResources. Specialcare
has beentaken to avoid temptation ofadding too manyconcepts than can be comfortablylearnt in the given time
frame. No attempt has been made to be comprehensive.
At this stage, while science is stilla common subject, the disciplines ofPhysics, Chemistry and Biologybegin to
emerge. Thestudents should be exposedto experiences as wellas modes ofreasoningthat are typicalofthe subject.
General Instructions :
1. The units specified for each termshallbe assessed through bothFormative and Summative assessments.
2. In eachterm, termwillbe two formative assessments eachcarrying 10% weightage.
3. The summative assessment inthe First termwillcarry20%weightage and the summativeassessment inthe
second termwillcarry40% weightage.
4. Hands on practicalexamination willbe conducted through formative assessment in everytermwith 20%
weightage oftotaltermmarks.
5. Assessment of Practical Skills through MCQ will carry 20% weightage in every term and summative
assessment.
COURSE STRUCTURE
CLASS IX
First Term Marks : 80
Units Marks
I. Food 11
II. Matter - Its nature and behaviour 26
III. Organisationinlivingworld 16
IV. Motion, Force and Work 27
Total 80

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Theme : Food (10 Periods)
Unit : Food
Plantandanimalbreedingandselectionforqualityimprovementandmanagement;useoffertilizers,manures;protection
frompests anddiseases; organic farming.
Theme : Materials (22 Periods)
Unit : Matter- Nature and behaviour
Definitionofmatter;solid, liquidandgas;characteristics-shape,volume, density; changeofstate-melting(absorption
ofheat), freezing, evaporation(Cooling byevaporation), condensation, sublimation.
Nature of matter : Elements, compounds and mixtures. Heterogeneousand homogenous mixtures, colloids and
suspensions.
Theme: The World of The Living (22 Periods)
Unit: Organization in the living world.
Cell - Basic Unit of life : Cellasa basic unit oflife; prokaryotic and eukaryotic cells, multicellular organisms; cell
membraneandcellwall, cellorganelles;chloroplast, mitochondria, vacuoles, endoplasmicreticulum,golgiapparatus;
nucleus, chromosomes -basic structure, number.
TISSUES, Organs, Organ System, Organism
Structure and functions of animal and plant tissues (four types in animals; meristematic and permanent tissues in
plants).
Theme : Moving Things, People and Ideas (36 Periods)
Unit : Motion, force and work
Motion : Distance anddisplacement, velocity; uniformandnon-uniformmotion along astraight line; acceleration,
distance-timeandvelocity-timegraphs for uniformmotionand uniformlyaccelerated motion, equationsofmotionby
graphicalmethod;elementaryidea ofuniformcircular motion.
Force and Newton's laws: Force and motion, Newton's laws of motion, inertia of a body, inertia and mass,
momentum, force andacceleration. Elementaryidea ofconservationofmomentum, actionand reactionforces.
Gravitation: Gravitation;universallawofgravitation, force ofgravitationofthe earth(gravity),accelerationdueto
gravity;mass andweight;free fall
PRACTICALS
Practical should be conducted alongside the concepts taught in theory classes
List of Experiments
1. To test (a) the presence ofstarchin the givenfood sample (b) thepresence ofthe adulterant metanilyellow in
dal

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2. To prepare
a) a true solution ofcommon salt, sugar and alum
b) a suspension ofsoil, chalk powder and fine sand in water
c) a colloidalofstarchinwater and egg albuminin water and distinguishbetween these on the basis of
• transparency
• filtrationcriterion
• stability
3. To prepare
a) a mixture
b) a compound
using iron filingsand sulphur powder and distinguishbetween these onthe basis of:
i. appearance i.e., homogeneityand heterogeneity
ii. behaviour towardsa magnet
iii. behaviour towards carbondisulphide as a solvent.
iv. effect ofheat.
4. To carryout the following reactions and classifythemas physicalor chemicalchanges.
a. Ironwithcopper sulphate solutionin water.
b. Burning ofmagnesiuminair.
c. Zincwithdilute sulphuricacid
d. Heating ofcopper sulphate
e. Sodiumsulphatewithbariumchloride inthe formoftheirsolutions inwater.
5. To prepare stained temporarymounts of(a)onionpeeland (b) humancheek cells andto record observations
and draw their labeled diagrams.
6. To identifyparenchyma and sclerenchyma tissues in plants, striped muscle fibers and nerve cells inanimals,
fromprepared slides and to draw their labeled diagrams.
7. To separate the components of a mixture of sand, common salt and ammonium chloride (or camphor) by
sublimation.
8. To determinethe melting point ofice and the boiling point ofwater.

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COURSE STRUCTURE
CLASS IX
Second Term Marks : 80
Units Marks
I. Matter - Its nature and behaviour 15
II. Organisationintheliving world 22
III. Motion, Force and Work 32
IV OurEnvironment 11
Total 80
Theme : Materials (28 Periods)
Unit : Matter - Nature and Behaviour
Particle nature, basic units : atoms and molecules. Law ofconstant proportions.Atomicand molecular masses.
Mole Concept : Relationship ofmole to mass ofthe particles andnumbers. Valency. Chemicalformulaofcommon
compounds.
Structure of atom : Electrons, protons and neutrons; Isotopes and isobars.
Theme : The World of The Living (23 Periods)
Unit : Organization in the living world.
Biological Diversity : Diversity ofplants 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 andAngiosperms). Major groups ofanimals (salient features) (Non-chordates upto
phyla and chordates upto classes).
Health anddiseases : Healthandits failure. Infectious andNon-infectious diseases, their causesand manifestation.
Diseases caused bymicrobes (Virus, Bacteria and protozoans) and their prevention, Principles oftreatment and
prevention. Pulsepolio programmes.
Theme : Moving Things, People and Ideas (24 Periods)
Unit : Motion, force and work
Floatation : Thrust and pressure.Archimedes' principle, buoyancy, elementaryideaofrelative density.
Work, energy andpower: Work done bya force, energy, power;kinetic and potentialenergy;law ofconservation
ofenergy.
Sound:Natureofsoundanditspropagationinvariousmedia,speedofsound,rangeofhearinginhumans;ultrasound;
reflection ofsound;echo and SONAR.
Structure ofthe humanear (auditoryaspect only).

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Theme : Natural Resources (15 Periods)
Unit : Our environment
Physical resources : Air, Water, Soil.
Air for respiration, for combustion, for moderating temperatures, movements ofair and its role in bringing rains
across India.
Air, waterand soilpollution( briefintroduction). Holes inozone layer and the probable damages.
Bio-geo chemicalcyclesinnature : water, oxygen, carbon, nitrogen
PRACTICALS
Practical should be conducted alongside the concepts taught in theory classes
SECOND TERM
1. To verifylawsofreflectionofsound.
2. To determine the densityofsolid (denserthan water) byusing a spring balance and a measuring cylinder.
3. To establishthe relation between the loss in weight ofa solid whenfullyimmersed in
a. tap water
b. stronglysaltywater, with the weight ofwater displaced byit bytaking at least two different solids.
4. To observeand compare the pressureexerted bya solidironcuboid onsandwhile resting onitsthree different
faces and to calculate the pressureexerted in the three different cases.
5. To determinethe velocityofapulse propagated throughastretched string/slinky.
6. To studythe characteristic ofspirogyra/Agaricus, Moss/Fern, Pinus ( eitherwithmale or femaleconre) and an
Angiospermic plant. Draw and give two identifying features ofgroupstheybelong to.
7. To observe and draw the given specimens-earthworm, cockroach, bony fish and bird. For each specimen
record
a. one specific featureofits phylum
b. one adaptive feature withreference to its habitat.