Activity 3.1 NCERT Class 9 Science Atoms and Molecules
Experiment to demonstrate that under a chemical reaction mass remain always constant. Law of conservation of mass.
Are bases also salts? Are acids also salts?
Discussion on whether bases also salts or acids also salts?
Activity 2.10 NCERT Class 9 Science Is Matter Around Us Pure
Experiment that differentiate mixtures from compounds.
Activity 2.9 NCERT Class 9 Science Is Matter Around Us Pure
Separation of impurity by crystallisation.