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==Key Stage 3==
===Meaning===
A [[pesticide]] is a [[chemical]] which kills unwanted [[animal]]s and weeds (pests) on crops. ==Key Stage 4=====Meaning===A [[pesticide]] is a [[chemical]] which kills unwanted [[animal]]s and weeds (pests) on crops. ==Beyond the Curriculum=={{#ev:youtube|https://www.youtube.com/watch?v=GLllZ-qiXJA}}