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===About Particles===
: [[Particle]]s are often made of other, smaller, [[particle]]s.
: [[Particle]]s are usually shown as round in shape but may be made of smaller [[particle]]s making their shape a combination of the shapes of other [[particle]]s stuck together.
===Examples===
| style="height:20px; width:300px; text-align:center;" |The [[atom]] is made of smaller [[particle]]s called [[Proton]]s, [[Neutron]]s and [[Electron]]s.
|}
==Key Stage 4==
===Meaning===
A [[particle]] is a small piece of [[matter]]
===About Particles===
: [[Particle]]s are often made of other, smaller, [[particle]]s.
: [[Particle]]s are usually shown as round in shape but may be made of smaller [[particle]]s making their shape a combination of the shapes of other [[particle]]s stuck together.
===Examples===
{| class="wikitable"
|-
|[[File:WaterMolecule.png|center|300px]]
|[[File:DaltonModelAtom.png|center|150px]]
|[[File:AtomDiagram.png|center|200px]]
|-
| style="height:20px; width:300px; text-align:center;" |A [[water]] [[molecule]] is a [[particle]] made of 1 [[Oxygen]] [[atom]] and two [[Hydrogen]] [[atom]]s.
| style="height:20px; width:300px; text-align:center;" |An [[atom]] is a [[particle]].
| style="height:20px; width:300px; text-align:center;" |The [[atom]] is made of smaller [[particle]]s called [[Proton]]s, [[Neutron]]s and [[Electron]]s.
|}
==Key Stage 5==
===Meaning===
'''Particle''' is a general term used to describe a 'small' unit of [[matter]].
===About Particles===
: The term '''particle''' may be used to describe [[object]]s as large as several billion [[atom]]s (as in a [[soot]] [[particle]]) or as small as a smallest possible unit of [[matter]] known as a [[Fundamental Particle|fundamental particle]].
: In [[physics]] the term '''particle''' is used:
:*On larger scales to simplify calculations of the motions of [[object]]s by approximating them to be round with an even distribution of [[mass]]
:*On large groups of [[object]]s at smaller scales for calculations of bulk properties by approximating them to be [[Point Particle|point]]s with negligible [[Volume (Space)|volume]].
:*On [[atom]]ic and [[subatomic Particle|subatomic]] scales to name units of [[matter]] which are often repeated in nature (eg. the [[proton]] is a repeating unit of [[matter]] found in all [[atom]]s).