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==Key Stage 2=====Meaning===A '''solid''' is a [[State of Matter|state of matter]] where all the [[Particle|particles]] are touching that holds its shape and in cannot be squashed into a regular arrangementsmaller space.
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*Glass
*Ice
==Key Stage 3==
===Meaning===
A [[State of Matter|state of matter]] where all the [[Particle|particles]] are touching and in a regular arrangement.