📚 Class 9 • CBSE • Science

Science

15 chapters — complete each to earn XP and build mastery

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1
Matter in Our Surroundings
States of matter, change of state, evaporation.
Study Practice
+25 XP
2
Is Matter Around Us Pure?
Mixtures, solutions, suspensions, colloids, separation techniques.
Study Practice
+25 XP
3
Atoms and Molecules
Dalton theory, atomic mass, molecular mass, mole concept.
Study Practice
+25 XP
4
Structure of the Atom
Electrons, protons, neutrons, Thomson, Rutherford, Bohr models.
Study Practice
+25 XP
5
The Fundamental Unit of Life
Cell structure, organelles, plant vs animal cell.
Study Practice
+25 XP
6
Tissues
Types of plant and animal tissues, their functions.
Study Practice
+25 XP
7
Diversity in Living Organisms
Classification — kingdom to species, five kingdom system.
Study Practice
+25 XP
8
Motion
Distance, displacement, speed, velocity, acceleration, graphs.
Study Practice
+25 XP
9
Force and Laws of Motion
Newton's three laws, inertia, momentum, conservation of momentum.
Study Practice
+30 XP
10
Gravitation
Universal law of gravitation, acceleration due to gravity, mass vs weight.
Study Practice
+30 XP
11
Work and Energy
Work, kinetic/potential energy, law of conservation of energy.
Study Practice
+25 XP
12
Sound
Production, propagation, speed, echo, ultrasound, human ear.
Study Practice
+25 XP
13
Why Do We Fall Ill?
Diseases, infectious/non-infectious, immunity, prevention.
Study Practice
+20 XP
14
Natural Resources
Air, water, soil, biogeochemical cycles, ozone layer.
Study Practice
+20 XP
15
Improvement in Food Resources
Crop improvement, animal husbandry, bee-keeping.
Study Practice
+20 XP

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