In Figure 1, it shows that heat is use to cook rice. There are times that rice quality is affected by the presence of some tiny stones or plant parts mixed together. In practice, handpicking will separate the tiny stones such that the rice grains would be more safe to consume. The use of magnet is useful in mining iron and in many process in- dustries to remove metal contaminants from product streams. In our community, waste are segregated for the utilization of biodegradable and non-biodegradable materials. Separating mixtures remove unwanted ma- terials, thus making these materials available for utilizing them for differ- rent purposes. Can you identify some techniques in separating mixtures? In what ways can you separate the different mixtures found at home as illustrated in Figure 2 below? This lesson will help you to learn more! Happy learn- ing!
