Ch – 6 Changes Around Us

  • Many changes take place around us all the time.
  • The changes which affect the size and shape of an object are known as physical changes. Eg: Folding of a paper.
  • The changes which affect the chemical properties of an object are known as chemical changes. Eg: Turning milk into curd.
  • The changes which can be reversed and are temporary are known as reversible changes. Eg: Rolling of dough.
  • The changes which can’t be reversed and are permanent are known as chemical changes. Eg: Ripening of fruits.
  • Chemical changes are irreversible in nature.
  • Physical changes are usually reversible in nature.
  • A few ways to bring about a change in a substance could be, by heating it or by mixing it with some other substance.

Published by Priya Prakash

In the midst of winter, i found there was within me an invincible summer ~ Albert Camus

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