CLASS: VIII :: Materials, Metals And Non-Metals
CLASS: VIII NCERT (CBSE)
Chemistry
Materials, Metals And Non-Metals
Physical Properties Chemical Properties of Metals
Metals are used in making machinery, automobiles, aeroplanes, buildings, trains, satellites,...
CLASS: VIII :: Stars And The Solar System
CLASS: VIII NCERT (CBSE)
Physics
Stars And The Solar System
Celestial Bodies
Stars are always fascinating to mankind. They are the most beautiful celestial bodies, about...
CLASS: VIII :: Light
CLASS: VIII NCERT (CBSE)
Physics
Light
Reflection in Plane mirrors
Light is a form of energy given out by a self luminousbody, which...
CLASS: VIII :: Some Natural Phenomena
CLASS: VIII NCERT (CBSE)
Physics
Some Natural Phenomena
Introduction and Lightning
Lightning is a natural phenomenon that has fascinated people for ages. Several people thought and researched...
CLASS: VIII :: Chemical Effect Of Electric Current
CLASS: VIII NCERT (CBSE)
Physics
Chemical Effect Of Electric Current
SUMMARY
Conductivity of Liquids
We can use a tester to check if electricity is flowing through a wire in...
CLASS: VIII :: Sound
CLASS: VIII NCERT (CBSE)
Physics
sound
SUMMARY
Production and Propagation of sound
Sound is a form of energy that causes the sensation of hearing. Sound needs a medium...
CLASS: VIII :: Friction
CLASS: VIII NCERT (CBSE)
Physics
Friction
SUMMARY
Friction and its Types
Friction is a force that opposes the relative motionbetween two surfaces of...
CLASS: VIII :: Force And Pressure
CLASS: VIII NCERT (CBSE) ...
CLASS: IX :: Improvement in Food Resources
CLASS: IX NCERT (CBSE) ...
CLASS: IX :: Natural Resources
CLASS: IX NCERT (CBSE) ...
CLASS: IX :: Why do we fall ill
CLASS: IX NCERT (CBSE) ...
CLASS: IX :: Sound
CLASS: IX NCERT (CBSE) ...
CLASS: IX :: Work and Energy
CLASS: IX NCERT (CBSE)
Work and Energy
SUMMARY
• The essential conditions to be satisfied for work to be done are:
Some force must act on the object
The...
CLASS: IX :: Gravitation
CLASS: IX NCERT (CBSE)
Gravitation
SUMMARY
Freely falling object: Is the object which moves towards the Earth due to force of gravity
Acceleration due to gravity:...
CLASS: IX :: Force and Laws of Motion
CLASS: IX NCERT (CBSE)
Force and Laws of Motion
SUMMARY
If an object does not change its position with respect to time and the surroundings, it...
CLASS: IX :: Motion
CLASS: IX NCERT (CBSE)
Motion
Summary
• Motion: Whenever a body changes its position continuously with respect to the position of other bodies around it then it...
CLASS: IX :: Diversity in Living Organisms
CLASS: IX NCERT (CBSE)
Diversity in Living Organisms
SUMMARY
Aristotle, the Greek philosopher, classified animals based on whether they live on land, in water or in...
CLASS: IX :: Tissues
CLASS: IX NCERT (CBSE)
Tissues
SUMMARY
1) A group of cells, that are similar in structure and work together to achieve a particular function, forms a tissue.
2)...
CLASS: IX :: The Fundamental unit of Life
CLASS: IX NCERT (CBSE)
The Fundamental unit of Life
SUMMARY
All living organisms are made of cells. Marcello Malpighi, proposed that plants are made of tiny...
CLASS: IX :: Structure of the Atom
CLASS: IX NCERT (CBSE)
Structure of the Atom
Summary
• Atom is the smallest particle of an element, which maintains its identity throughout chemical and physical changes.
•...
