Question

Which event is an example of a physical change?

1. Iron rusting
2. Fireworks exploding
3. Eggs cooking
4.ice melting

Answer 1

Ice melting
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Answer 2

Ice melting

Explanation:

Think about ice for a moment. After ice melts into liquid water, you can refreeze it into solid ice if the temperature drops. Freezing and melting are physical changes. The substances produced during chemical changes however cannot easily change back into the original substances.