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30% Syllabus Reduction of IX CBSE

CHAPTER Topics Removed
MathsUnit 1 Number Systems 
Real NumbersRepresentation of terminating / non-terminating recurring decimals on the number line through successive magnification. Explaining that every real number is represented by a unique point on the number line and conversely, viz. every point on the number line represents a unique real number. Definition of nth root of a real number 
Unit II Algebra 
POLYNOMIALSMotivate and State the Remainder Theorem with examples. Statement and proof of the Factor Theorem.x3+y3+z3-3xyz
LINEAR EQUATIONS INTWO VARIABLESExamples, problems on Ratio and Proportion
UNIT III-COORDINATE GEOMETRY 
COORDINATEGEOMETRYNo deletion
UNIT IV-GEOMETRY 
INTRODUCTION TOEUCLID’S GEOMETRYDelete the Chapter
LINES AND ANGLESNo deletion
QUADRILATERALSNo deletion
AREADelete the Chapter
CIRCLESThere is one and only one circle passing through three given non-collinear points. If a line segment joining two points subtends equal angle at two other points lying on the same side of the line containing the segment, the four points lie on a circle
CONSTRUCTIONSConstruction of a triangle of given perimeter and base angles
UNIT V-MENSURATION 
AREASApplication of Heron’s Formula in finding the area of a quadrilateral.
SURFACE AREAS AND VOLUMESNo deletion
UNIT VI-STATISTICS & PROBABILITY 
STATISTICSHistograms (with varying base lengths),Frequency polygons. Mean, median and mode of ungrouped data.
PROBABILITYNo deletion
  
Social Science 
History Section 2: Livelihoods, Economies and SocietiesNOTE- ANY ONE OUT OF THESE TWO CHAPTERS (CH-4/CH5)Chapter IV: Forest Society and ColonialismChapter V: Pastoralists in the Modern World  Complete Section (Both the Chapters)
GeographyChapter 3: DrainageComplete Chapter except for Map Items which will be assessed in the Examination
Chapter 6: Population Complete Chapter
  POLITICAL SCIENCE 
  Chapter 2: Constitutional DesignDemocratic Constitution in South Africa (Only)
  Chapter 5: Democratic Rights  Complete Chapter
  ECONOMICS  
 Chapter 4: Food Security in India  Complete Chapter
SCIENCE(Deleted Portion (Theory)) 
Under Unit I: Matter-Nature and Behaviour Under Unit I: Matter-Nature and Behavior Matter in Our Surroundings: 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.
Under Unit II:Organization in the Living World Diversity in Living Organisms: Diversity of plants and animals-basic issues in scientific naming, basis of classification. Hierarchy of categories / groups, Major groups of plants(salient features) (Bacteria, Thallophyta, Bryophyta, Pteridophyta, Gymnosperms and Angiosperms). Major groups of animals (salient features) (Non-chordates up to phyla and chordates up to classes
Under Unit III: Motion, Force and Work Floatation: Thrust and Pressure. Archimedes’ Principle; Buoyancy; Elementary idea of Relative Density. 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
Under Unit V: Food Production Improvement in Food Resources: Plant and animal breeding and selection for quality improvement and management; Use of fertilizers and manures; Protection from pests and diseases; Organic farming 
DELETED PRACTICALS1. Separation of the components of a mixture of sand, common salt and ammonium chloride (or camphor).2. Determination of the melting point of ice and the boiling point of water.3. Verification of the Laws of reflection of sound.4. Determination of the speed of a pulse propagated through a stretched string/slinky(helical spring).5. Study of the characteristics of Spirogyra, Agaricus, Moss, Fern, Pinus (either with maleor female cone) and an Angiosperm plant. Draw and give two identifying features of the groups they belong to.6. Observe the given pictures/charts/models of earthworm, cockroach, bony fish and bird. For each organism, draw their picture and record: a) one specific feature of its phylum. b) one adaptive feature with reference to its habitat.7. Study of the external features of root, stem, leaf and flower of monocot and dicot plants 
Theme: Natural Resources: Balance in nature Unit IV: 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 and Nitrogen.Internal Assessment 
  English 
  Grammar 
 Use of Passive Voice Clauses: Noun, Adverb Clauses of condition and time, Relative Prepositions 
Writing 
Letter on a situation Descriptive Paragraph on a place/event 
Literature 
BEEHIVE1. The Lake Isle of Innisfree2. The Snake & The Mirror3. The Duck & The Kangaroo4. Kathmandu5. A Slumber Did My Spirit Seal 
MOMENTS 
1.  Ishwaran the Storyteller 2. The Accidental Tourist