Teachers, save “14.5.20 UOI - Reversible and Irreversibl…” to assign it to your class.

A change which can be undone, that is, can be reversed is called a reversible change. A change which cannot be undone, that is, it cannot be reversed is called an irreversible change. Can you sort the changes? Watch: https://www.youtube.com/watch?v=tiU1IYP88ZA&feature=emb_logo