Question

Q12.Can all changes be reversed? List 4 changes each that can be
and cannot be reversed​

Answer 1

Explanation:

Reversible changes and irreversible changes. A change which can happen backward, that is, can be reversed is called a reversible change. If you keep water in the freezer for some time, it transforms into ice.

Answer 2

No. All changes cannot be reversed. Such as chemical changes.

Can be reversed.

• Freezing of water
• boiling water
• breaking glass
• mixing of sand and water

Cannot be

• Burning of paper
• Cooking
• Rusting of iron
• Mixing of acid and base