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Difference between revisions of "Reversible Changes"

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|+ Making shapes with playdough is a reversible process.
 
|+ Making shapes with playdough is a reversible process.
 
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|[[File:Playdough.png|center|200px]]
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|[[File:Playdough.png|center|400px]]
 
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| style="height:20px; width:200px; text-align:center;" |Once you squash playdough into a new shape you can squeeze it back into the original shape.
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| style="height:20px; width:400px; text-align:center;" |Once you squash playdough into a new shape you can squeeze it back into the original shape.
 
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Revision as of 08:34, 31 August 2018

Key Stage 2

Meaning

A reversible change is a change which can be undone.

About Reversible Changes

In a reversible change you can get back the substance you started with.
A change that cannot be reversed is called irreversible.

Reversible changes you should know are:

Examples

Making shapes with playdough is a reversible process.
Playdough.png
Once you squash playdough into a new shape you can squeeze it back into the original shape.
Melting and Freezing
Melting.png
A solid will melt and become a liquid. You can then freeze it to become a solid again.
Freezing.png
Condensing and Evaporating
Condensing.png
When a gas is condensed into a liquid you can always evaporate it back into a gas.
Evaporating.png