Changes

: In [[liquid]] [[water]] the [[molecule]]s are randomly arranged and close together. In Whereas in [[solid]] [[water]] the [[molecule]]s align with their [[Hydrogen]] [[atom]]s touching the [[Oxygen]] [[atom]]s of adjacent [[molecule]]s. {| class="wikitable"|-|[[File:IceWaterAnomaly.png|center|500px]]|-| style="height:20px; width:200px; text-align:center;" |The same number of [[molecule]]s takes up a larger [[Volume (Space)|volume]] in [[solid]] [[water]], so [[Ice]] is less [[Density|dense]] than [[liquid]] [[water]].|} ==Key Stage 3=====Meaning===The [[Ice-Water Anomaly]] is the [[observation]] that [[water]] in its [[solid]] [[State of Matter|state]] is less [[Density|dense]] than [[water]] in its [[liquid]] [[State of Matter|state]]. ===About the Ice-Water Anomaly===: For most [[substance]]s the [[solid]] [[State of Matter|state]] is more [[Density|dense]] than the [[liquid]] [[State of Matter|state]]. However, this is not the case for [[water]].: [[Water]] is known as a [[Polar Molecule|polar molecule]] which means one part is slightly [[Positive Charge|positively charged]] and the other is slightly [[Negative Charge|negatively charged]]. Since there is strong [[force]] of [[attraction]] pulling the [[electron]]s towards to [[Oxygen]] [[atom]] in [[water]] then the [[Oxygen]] becomes slightly [[Negative Charge|negative]] and the [[Hydrogen]] [[atom]]s become slightly [[Positive Charge|positively charged]]. This causes the [[molecule]]s to line up with a [[Hydrogen]] of one [[molecule]] touching the [[Oxygen]] in another [[molecule]].