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● Under Unit I: Matter-Nature and Behaviour
o 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
o 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).
● Under Unit III: Motion, Force and Work
o Floatation: Thrust and Pressure. Archimedes’ Principle; Buoyancy; Elementary idea of
Relative Density.
o 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
o 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
1. 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 male
or female cone) and an Angiospermic 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.