Multiple choice

Which of the following examples belongs to a reversible change?

  1. A blacksmith changes a piece of iron into different tools

  2. Cooking

  3. Cake batter is made from eggs, flour, sugar and butter

  4. When vinegar is mixed with bicarbonate of soda

  5. The burning of wood
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A reversible change is a change that can be undone or reversed, so a piece of iron is heated to red hot and tis softens it. It is then beaten into the desired shape. It is a reversible change.

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