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Posted by Vivek Rana 3 years, 9 months ago
- 2 answers
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. |
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Ashna Gurjar 3 years, 9 months ago
1Thank You