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Asked by jkiteley to Ed, Hayley, Jason, Nathan, Sophie on 14 Mar 2013.
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Hayley Evers-King answered on 14 Mar 2013:
The different states are a response from a substance to changing amounts of energy. Think about water – when it is cold and there is low heat energy it is solid, add heat and it melts to become liquid and eventually will evaporate to form a gas if enough heat is added.
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Comments
guwnoprawda101 commented on :
whot is harder liqids of solid? can you naser me
Hayley commented on :
I guess what you need to think about is how compressible something is – is it easy to squash? Water might be thought of as soft, but its actually not very compressible (you can’t squeeze it to make it softer) whereas air is, so a solid (say a marshmallow) might actually be softer than water in that way 🙂