CBSE class 1-1 0 ✍️✍️✍️📖📖

Physical And Chemical Changes Changes occur around us all the time. Milk turns sour, seed germinate, the weather changes and fruit ripen.Changes can be of different types: desirable and undesirable changes, slow and fast changes, temporary and permanent changes, reversible and Irreversible changes and physical and chemical changes.All these changes involve one or more substances.Continue reading “CBSE class 1-1 0 ✍️✍️✍️📖📖”