Question

slow and fast changes natural and manmade changes periodic and non periodic changes reversible and Irreversible changes physical and chemical changes examples
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Answer 1

chemical change - Rusting of iron.

physical change - bioling of water.

Irreversible change - All chemical change is Irreversible change.

Reversible change - Turning of water into ice.

Non-periodic change - Burning of matchsticks.

Periodic change -Day or night change.

Manmade change -Plastic bottle

Natural change - Crops

Slow change - Rusting of iron in slow motion.

Fast change -Burning of crackers.