separating_materials_schemeofwork - SCHEME OF WORK FOR...

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SCHEME OF WORK FOR SCIENCE TOPIC: OBJECTIVES: : SCI AT AT1: Scientific Enquiry Focus on: Obtaining and Presenting Evidence AT1 2e) use simple equipment and materials appropriately and take action to control risks AT1 2f) make systematic observations and measurements, including the use of ICT for datalogging AT1 2g) check observations and measurements by repeating them where appropriate SCI AT 3: Materials and their Properties Changing materials AT3 2a) Describe changes that occur when materials are mixed [for example, adding salt to water] AT3 2b) Describe changes that occur when materials [for example, water, clay, dough] are heated or cooled AT3 2c) Understand that temperature is a measure of how hot or cold things are AT3 2d) Understand reversible changes, including dissolving, melting, boiling, condensing, freezing and evaporating AT3 2e) Identify the part played by evaporation and condensation in the water cycle AT3 2f) Understand that non-reversible changes [eg: vinegar & bicarbonate of soda, plaster of Paris & water] form new materials that may be useful AT3 2g) Understand that burning materials [eg: wood, wax, natural gas] forms new materials and that this change is not usually reversible. Separating mixtures of materials AT3 3a) Separate solid particles of different sizes by sieving [for example, those in soil] AT3 3b) Understand that some solids [for example, salt, sugar] dissolve in water to give solutions but some [for example, sand, chalk] do not AT3 3c) Separate insoluble solids from liquids by filtering AT3 3d) Recover dissolved solids by evaporating the liquid from the solution AT3 3e) Use knowledge of solids, liquids and gases to decide how mixtures might be separated Level Descriptors Level 3 Recognise that some changes [for example, the freezing of water] can be reversed and some [for example, the baking of clay] cannot Classify changes as reversible and non-reversible Level 4 Describe differences between the properties of solids, liquids and gases Classify substances as solids, liquids or gases Describe some methods [eg: filtration, distillation] that are used to separate simple mixtures. Use scientific terms [eg: evaporation, condensation] to describe changes. Understand reversible and irreversible changes and make simple predictions about whether other changes are reversible or not. Level 5 Identify a range of contexts in which changes [eg: evaporation, condensation] take place. Understand how a specific mixture [for example, salt and water, sand and water] can be separated. Suggest ways in which other similar mixtures might be separated.
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This note was uploaded on 11/29/2011 for the course PHYS 122 taught by Professor Terry during the Fall '11 term at BYU.

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separating_materials_schemeofwork - SCHEME OF WORK FOR...

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