Question

State some of the ways of bringing about changes in materials around us.
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Answer 1

Answer:

Some of the ways of bringing about changes in materials are by applying heat, light, electricity, or force.

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Examples of reversible changes are:

Melting of ice.

Boiling of water.

Melting of wax.

Stretching of a rubber band.

Stretching of a spring.

Inflation of a ballon.

Ironing of clothes.

Folding of paper.

Answer 2

Answer:

Some of the ways of bringing about changes in materials are by applying heat, light, electricity, or force.

Examples of reversible changes are:

Melting of ice.

Boiling of water.

Melting of wax.

Stretching of a rubber band.

Stretching of a spring.

Inflation of a ballon.

Ironing of clothes.

Folding of paper.

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