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→About The Mouth
[[File:MouthDiagram.png|right|300px|thumb|A human '''mouth''' with lips, tongue and teeth.]]
The '''mouth''' is the part of the body an [[animal]] uses to eat food and to [[Breathing|breathe]].
: Singular [[Noun]]: '''Mouth'''
==Key Stage 2==
===Meaning===
[[File:MouthDiagram.png|right|300px|thumb|A human '''mouth''' with lips, tongue and teeth.]]
The '''mouth''' is the part of the body an [[animal]] uses to eat food and to [[Breathing|breathe]]. ===Examples==={| class="wikitable"|-|[[File:CatMouth.png|center|200px]]|[[File:CrabMouth.png|center|200px]]|-|The '''mouth''' of a cat.|A crab's '''mouth'''.|-|[[File:BirdMouth.png|center|200px]]|[[File:GoldfishMouth.png|center|200px]]|-|A [[bird]] '''mouth''' with beak and tongue.|The '''mouth''' of a goldfish.|}
==Key Stage 3==
The [[mouth]] is an [[organ]] in both the [[Breathing System|breathing system]] and the [[Digestive System|digestive system]].
===About Adaptations of The Mouth===
: The [[mouth]] contains [[teeth]] for the [[Mechanical Digestion|mechanical digestion]] of food.
: The [[mouth]] has [[Salivary Gland|salivary glands]] which makes the food moist so it is easier to swallow.
: The [[saliva]] in the [[mouth]] also starts [[Chemical Digestion|chemical digestion]] of food.
==Key Stage 4==
===Meaning===
The [[mouth]] is an [[organ]] in both the [[Breathing System|breathing system]] and the [[Digestive System|digestive system]].
===About The Mouth in the Digestive System===
: The [[mouth]] contains [[teeth]] for the [[Mechanical Digestion|mechanical digestion]] of food known as [[mastication]].
: The [[mouth]] has [[Salivary Gland|salivary glands]] which makes the food moist so it is easier to swallow.
: The [[saliva]] also contains a [[Digestive Enzyme|digestive enzyme]] called [[Salivary Amylase|salivary amylase]] which begins the [[Chemical Digestion|chemical digestion]] of [[starch]] into [[maltose]].
: The [[saliva]] has a [[pH]] of between 6.2 and 7.4 to provide the [[optimum]] [[pH]] for the [[Salivary Amylase|salivary amylase]] which works best at [[pH]] 6.7.
===About the Mouth in the Breathing System===
: The [[mouth]] is an opening which allows [[air]] into the [[Breathing System|breathing system]].