Choosing the best material 0 Overview Using this Resource Connecting to the Curriculum Marking Student Responses Further Resources This task is about useful physical properties of materials. What makes these materials good for the following situations? Question 1Change answer a) Why is wood used in the frames of houses? a) Why is wood used in the frames of houses? Question 1Change answer b) Why are pots for cooking made from metal? b) Why are pots for cooking made from metal? Question 1Change answer c) Why do we use disposable cups made from plastic? c) Why do we use disposable cups made from plastic? Question 1Change answer d) Give two reasons why carpets are made from wool. d) Give two reasons why carpets are made from wool. 1. 2. Task administration: This task can be completed with pencil and paper or online. Copyright: (c) Public Domain (Public Domain Pictures) (c) Public Domain (Clker) (c) Public Domain (Clker) (c) J.Fisher, NZCER Level: 3 Curriculum info: Science, Knowledge, Material World Keywords: properties, physical properties, society, materials Description of task: Students are asked to give a useful property for each of four materials used in different situations. Curriculum Links: Science capabilities The capabilities focus is brought about by the conversations you have and the questions you ask. Capability: Use evidence This resource provides opportunities to discuss how different materials are used depending on their properties. Science capability: Use evidence Science capabilities: Use evidence Answers/responses: Y7 (03/2003) a) Strong/can be joined (nailed together)/flexible. easy b) Conducts heat/does not melt. moderate c) Cheap/light/can be recycled. difficult d) Any 2 of: Insulates best/keeps the cold out. Durable. Comfortable/soft to walk on. 2 correct - difficult 1 correct - very easy Saucepans Properties of paper Building with aluminium Powders and crystals Will the jars float or sink? What's it made of? Come to your senses Which paper soaks up most water? Types of paper Investigating properties Properties of glass Viscosity of liquids Iron filings, sand and salt Properties of materials What will I use? Paper money for Monopoly (version A) The best mopper upper Investigating plastic Sorting plastic Beach clean-up