What does a "reversible change" mean?

• A change that cannot be change back.

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  A change that can be change back.

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  A change that happens quickly

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  A change caused by breaking

Which of these is a reversible change?

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Which of these is NOT a reversible change?

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What happens when you heat butter?

• It freezes

• It burns

• It turns to ice

• It melts

What does cooling water turn it into?

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Which of these changes is caused by heating?

• Water freezing

• Ice melting

• Water turning to ice

• Sugar dissolving in cold water

What is a non-reversible change?

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What is an example of a reversible change?

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Which of the following is a non-reversible change?

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When chocolate melts, the type of change is reversible.

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