Deleted syllabus of class 9th in …
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Gaurav Seth 3 years, 9 months ago
CBSE Class 9 Science (086) - Deleted portion (Theory):
Unit I: Matter-Nature and Behaviour
Chapter
Topics
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.
Unit II: Organization in the Living World
Chapter
Topics
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 upto phyla and chordates upto classes).
Unit III: Motion, Force and Work
Chapter
Topics
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).
Unit V: Food Production
Chapter
Topics
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 PRACTICALS
Internal Assessment
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.
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