Question

More example on Temporary changes and permanent changes

Answer 1

Examples of permanent changes are:if a tree is grown it can't change back into a baby plant. Temporary change Temporary change is a change is for a limited time. Permanent , Temporary , Chemical & Physical Changes Examples of temporary change are : wet sand can change into dry sand.

Answer 2

Example of temporary changes :

1) Freezing of water :

When we decrease the temperature of normal liquid water to 0°C ,the water becomes solid ice.

But this change is temporary, because with the help of little amount of heat we can again change the ice into liquid water.

2) Electromagnet : When we pass electricity in an electromagnet the magnetism of that electromagnet works perfectly.

But when we cut the electricity flow in an electromagnet the magnetism vanishes.

Here,the magnetism is a temporary change.

Permanent changes :

1) Combustion : When we burn any substance we cannot get the substance back which it was before the combustion.

2) Chemical reaction : There are many types of chemical reactions which are totally irreversible and are permanent changes.