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'''Smell ''' can be sweet or stinky, fresh or musty. There are many different smells but not many words to describe smell. Usually we say something smells like something else. ===Examples==={| class="wikitable"|-|[[File:RosePicture.png|center|200px]]|[[File:BookOld.png|center|200px]]|[[File:FreshAir.png|center|200px]]|-|A rose has a sweet '''smell'''.|The '''smell''' of an old book is musty.|I can '''smell''' the fresh air outside.|} ==Key Stage 2=====Meaning===[[Smell]] is one of the 5 main [[human]] [[sense]]s. ===About Smell===: [[Human]]s can [[sense]] [[smell]] with their [[nose]]. ==Key Stage 3=====Meaning===[[Smell]] allows [[animal]]s to detect certain [[chemical]]s in the [[air]]. ===About Smell===: [[Smell]] is one of the 5 main [[human]] [[sense]]s. ==Key Stage 4=====Meaning===: [[Smell]] allows [[animal]]s to detect certain [[chemical]]s in the [[air]]. ===About Smell===: [[Smell]] is one of the 5 main [[human]] [[sense]]s.: When an [[animal]] detects a [[chemical]] in the [[air]] [[Receptor Cell|receptor cells]] in the [[nose]] create an [[Action Potential|action potential]] which sends an [[Impulse (Biology)|impulse]] to the [[Central Nervous System|central nervous system (CNS)]]. ==Beyond the Curriculum=={{#ev:youtube|https://www.youtube.com/watch?v=snJnO6OpjCs}}