1.

Why do changes occur around us? Explain it with examples.

Answer»

Changes occur everywhere, every moment around us. Everything in the world is subject to change. Chemical changes: That change the chemical composition of the MATERIAL.Physical change: That are temporary and do not change the chemical composition of the material. They change only the STATE, colour, and texture.Reversible chages: They can be REVERSED.Irreversible changes: They cannot be reversed. Eg -BREAD going into toaster-becoming toast.-Boiling eggs.-Boiling Rice and Lentils.-Turning Milk into Yoghurt.-Making Tea.-Henna DRYING on your hands.-Nail varnish drying on your hands.-Butter melts.



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