Cambridge O Level Chemistry · Syllabus 5070 · States of Matter
State of matter
What is State of matter?
One of the three physical forms in which a substance can exist under ordinary laboratory conditions: solid, liquid or gas. The three states are distinguished by observable properties - whether shape and volume are fixed, whether the substance flows, whether it can be compressed by a noticeable amount, and whether it fills its container - and a substance can be changed from one state to another by transferring energy to or from it, without changing the substance itself.
This definition is part of the States of Matter chapter in Cambridge O Level Chemistry.
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