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==Key Stage 4==
===Meaning===
'''Sampling''' is when a [[scientist]] looks at several small areas of an [[organism]] or an [[ecosystem]] and calculates a [[Mean Average|mean]] [[average]] to make an [[estimate]] over the total area.
===About Sampling===
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| style="height:20px; width:200px; text-align:center;" |The number of [[stomata]] in the '''sample''' is counted and the number of [[stomata]] on the [[leaf]] can be estimated by multiplying the number in this area by the number of these areas that would fit on a [[leaf]].
| style="height:20px; width:200px; text-align:center;" |The fraction of [[plant]] coverage within the [[quadrat]] [[sample]] is counted by adding up the number of squares with [[plant]] coverage then this area. The same is done for several other areas within this [[ecosystem]] and a [[Mean Average|mean]] [[average]] is taken to [[estimate]] the [[Mean Average|average]] coverage of [[plant]]s within this [[ecosystem]].
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