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ICSE Class X Board Exam 2023 : Geography

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St. Andrews Scots Sr. Sec. School 9th Avenue, I.P. Extension, Patparganj, Delhi 110092 Session: 2022-2023 - Worksheet 06 Class: VI Subject: Science Topic: Separation of Substances Q.1 Define: a) b) c) d) e) Mixture Molecule Element Pure Substance Distillation Q.2 Fill in the blanks a) b) c) d) e) Small pieces of stone can be removed from rice by ___________. Husk from wheat flour is generally removed by ________. _________ are obtained from stalks by threshing. The process of setting of heavier particles is called ________. Filtration is helpful in separating an insoluble _________ from a ________. Q.3 Very Short Question Answers: a) b) c) d) e) Give one example of sieving used in everyday life. When is handpicking used? Which substance is used for loading? Which types of mixtures are separated by evaporation? What is decantation? Q.4 Multiple choice questions: a) Riya bought some vegetables such as French beans, lady s finger, green chillies, brinjals and potatoes all mixed in a bag. Which of the following methods of separation would be most appropriate for her to separate them? (a) Winnowing (b) Sieving (c) Threshing (d) Hand picking

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