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==Key Stage 3=====Meaning===A [[particle]] is a small piece of [[matter]]. Usually  ===About Particles===: [[Particle]]s are usually round in shape.: [[Particle]]s are often made of other, smaller, [[particle]]s. ===Examples==={| class="wikitable"|-|[[File:WaterMolecule.png|center|200px]]|[[File:DaltonModelAtom.png|center|200px]]|[[File:AtomDiagram.png|center|200px]]|-| style="height:20px; width:200px; text-align:center;" |A [[water]] [[molecule]] is a [[particle]] made of 1 [[Oxygen]] [[atom]] and two [[Hydrogen]] [[atom]]s.| style="height:20px; width:200px; text-align:center;" |An [[atom]] is a [[particle]].| style="height:20px; width:200px; text-align:center;" |The [[atom]] is made of smaller [[particle]]s called [[Proton]]s, [[Neutron]]s and [[Electron]]s.|}