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| | + | |[[File:Playdough.png|center|400px]] |
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− | | style="height:20px; width: | + | | 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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{| class="wikitable" | {| class="wikitable" | ||
− | |+ Melting and Freezing | + | |+ Melting and Freezing are reversible. |
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|[[File:Melting.png|center|600px]] | |[[File:Melting.png|center|600px]] | ||
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− | |+ Condensing and Evaporating | + | |+ Condensing and Evaporating are reversible. |
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|[[File:Condensing.png|center|600px]] | |[[File:Condensing.png|center|600px]] |
Latest revision as of 08:37, 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
Once you squash playdough into a new shape you can squeeze it back into the original shape. |
A solid will melt and become a liquid. You can then freeze it to become a solid again. |
When a gas is condensed into a liquid you can always evaporate it back into a gas. |