Recall that crude oil is the primary Ask each group to look at some Students can go Exploring solution to source of raw materials for the plastics samples of polymers and then list on to consider Science. make slime. industry. the properties they think they have in the properties of Recall what happens when monomers common. slime. Demonstrate polymerise. how nylon can Recall the names of some common Exploring: Polymer Explaining: be made from artificial and natural polymers. Students use 4% PVA solution, 4% Polymer the reaction Link the properties of common plastics borax solution to make slime. formation and between to their uses. energy Securing Explaining: Students consider Polymer formation and Classify changes as exothermic or energy the energy endothermic from temperature Demonstrate how nylon can be changes involved in water and changes. made from the reaction between in the reaction. either Explain how the properties of a hexane-1,6-diamine dichloride or substance depend on the bonding and in water and hexanedioyl arrangement of atoms. either decanedioyl dichloride or (adipoyl) Exceeding hexanedioyl (adipoyl) dichloride in in Model the formation of poly(ethene) cyclohexane. cyclohexane. using equations, symbols and particle diagrams. Plenary: Thinking about polymers Identify the monomer structures in a Odd One Out: glass, poly(ethene), given polymer chain. copper. (Possible answers: glass is Working Scientifically the only brittle material; glass is the Recall some methods by scientists only material made from sand; comment on one another’s work (e.g. poly(ethene) is the only material scientific journals, conferences). made from oil; poly(ethene) is the Describe the process of peer review. only one that is elastic; copper is the Explain why peer review is used. only metal; copper is the only Evaluate peer review. conductor of electricity; poly(ethene) is the only polymer.) Lesson 9Ec: Composite materials Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Starter: Pykrete Explaining: Resources n/a Tell students about pykrete, the Composites from 9Ec composite material made by freezing
Recall that crude oil is the primary source of raw materials for the plastics industry. Recall what happens when monomers polymerise. Recall the names of some common artificial and natural polymers. Link the properties of common plastics to their uses. Securing Classify changes as exothermic or endothermic from temperature changes. Explain how the properties of a substance depend on the bonding and arrangement of atoms. Exceeding Model the formation of poly(ethene) using equations, symbols and particle diagrams. Identify the monomer structures in a given polymer chain. Working Scientifically Recall some methods by scientists comment on one another’s work (e.g. scientific journals, conferences). Describe the process of peer review. Explain why peer review is used. Evaluate peer review. Ask each group to look at some samples of polymers and then list the properties they think they have in common. Exploring: Polymer Students use 4% PVA solution, 4% borax solution to make slime. Explaining: Polymer formation and energy Demonstrate how nylon can be made from the reaction between hexane-1,6-diamine in water and either decanedioyl dichloride or hexanedioyl (adipoyl) dichloride in cyclohexane. Plenary: Thinking about polymers Odd One Out: glass, poly(ethene), copper. (Possible answers: glass is the only brittle material; glass is the only material made from sand; poly(ethene) is the only material made from oil; poly(ethene) is the only one that is elastic; copper is the only metal; copper is the only conductor of electricity; poly(ethene) is the only polymer.) Students can go on to consider the properties of slime. Explaining: Polymer formation and energy Students consider the energy changes involved in the reaction. Exploring Science. solution to make slime. Demonstrate how nylon can be made from the reaction between in water and either dichloride or hexanedioyl (adipoyl) in cyclohexane. Lesson 9Ec: Composite materials Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Starter: Pykrete Tell students about pykrete, the composite material made by freezing Explaining: Composites Resources from 9Ec n/a
Chemistry2years.docx