Definition of matter; solid, liquid and gas; characteristics - shape, volume, density; change of statemelting (absorption of heat), freezing, evaporation (cooling by ...
NCERT books are the first preference to prepare for CBSE and competitive exams. Class 9 is the foundation builder for students so they need to develop a strong conceptual foundation for higher studies ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results