2.2K views · 35 reactions | Handpicking, winnowing, sieving (Methods of Separation of mixtures) Through the fascinating techniques of handpicking, winnowing, and sieving, these three exceptional students demonstrated how these methods can effectively separate mixtures. #ScienceShowcase #Mixture #seperation #ScienceatIWS #IWS #IWSEducationalMethod #ImperialWorldSchool | Imperial World School | Facebook

Behind the scenes at Heritage Farm: Winnowing lettuce seeds! Take a look at this machine setup that uses a fan to separate the lettuce seeds from the chaff. First the seeds are poured through an opening into a chamber with a fan. The higher-density seeds fall into a compartment below, while the fan blows the lighter chaff and immature seeds out of the chamber and into separate bins to be discarded. We repeat this process several times to separate out as much of the chaff and immature seeds as po