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planit Science Properties and Changes of Materials * *« NEY / Separating Nixtures oo \ Mixed Materials — Sand and Water Several water bottles have leaked into a bag of play sand Mixed Materials — Raisins and Flour Raisins have poured out of their boxes into the bags of flour. \ \ a” Mixed Materials — Paper clips and Rice 1. A suspension - a mixture of a liquid and solid particles that will not dissolve. A. Sand and water. Mixed Materials How did you do? 2. A mixture of two solids. B. Raisins and 3. A solution - a solid dissolved in a liquid. D. Salt and water. 4. A mixture of two solids. C. Paper clips and rice. Mixed Materials Li = Since each of these mixtures of materials has been mixed differently, you will need to use different processes to separate them. Talk to your partner about ways you could separate them. 1. A suspension - a mixture of a liquid and solid particles that will not dissolve. A. Sand and water. = 1 \ Flour . 4. A mixture of two solids. C. Paper clips and rice. \ ee | Separating Processes - Evaporation we OY \ Separating Processes — Magnetic Attraction a | e ee we \ Separating Processes - Sieving Use this process to separate the mixture of raisins and flour. The grains of flour are much smaller than the raisins, so they will be able to go through the sieve into the bowl below. The raisins are much bigger, and will get caught in the sieve. SS a es | ee oS Separating the Mixtures...Have a go! Seperating Mixtures Aim ¢ Ican use different processes to separate mixtures of materials. SEA UE SE SE 8) / Lo Success Criteria * Ican identify different ways materials can be mixed together. * Ican use sieving, filtering, evaporating and other processes to separate mixtures of materials. ¢ I know when to use which processes to separate mixtures. — 
