Materials - Heating and Cooling things
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MATERIALS Heating and cooling things
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Transcript of Materials - Heating and Cooling things
![Page 1: Materials - Heating and Cooling things](https://reader036.fdocuments.in/reader036/viewer/2022062522/587d6d961a28ab32318b7265/html5/thumbnails/1.jpg)
MATERIALSHeating and cooling things
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• Some materials or objects change when we heat or cool them.
These changes can be reversible (change back) or irreversible (not change back).
![Page 3: Materials - Heating and Cooling things](https://reader036.fdocuments.in/reader036/viewer/2022062522/587d6d961a28ab32318b7265/html5/thumbnails/3.jpg)
When we heat ice cubes they change into water.
![Page 4: Materials - Heating and Cooling things](https://reader036.fdocuments.in/reader036/viewer/2022062522/587d6d961a28ab32318b7265/html5/thumbnails/4.jpg)
How does it change?
• Is it a reversible or an irreversible
change?
![Page 5: Materials - Heating and Cooling things](https://reader036.fdocuments.in/reader036/viewer/2022062522/587d6d961a28ab32318b7265/html5/thumbnails/5.jpg)
This is an irreversible change.
heat
cool
![Page 6: Materials - Heating and Cooling things](https://reader036.fdocuments.in/reader036/viewer/2022062522/587d6d961a28ab32318b7265/html5/thumbnails/6.jpg)
This is an irreversible change.
heat
cool
![Page 7: Materials - Heating and Cooling things](https://reader036.fdocuments.in/reader036/viewer/2022062522/587d6d961a28ab32318b7265/html5/thumbnails/7.jpg)
This is a reversible change.
heat
cool