6172RB Science a STEM approach Year 2 low res watermark

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Lesson 3 Chemical sciences LIVING IN A MATERIAL WORLD Lesson plan Introduction: 1. Display the images from page 51 to the class. In pairs, students discuss what materials they think make up the objects shown. What materials have been used to make this window? Car? Cardigan? Jacket? Students use a mini whiteboard to list the materials. QP PA 2. With their partner, students discuss the questions Why is a window not made from glass only? Why can’t a car be all metal? Why does a cardigan not have wool buttons? Why shouldn’t a jacket be all fur? QP C Development: 3. Students explore one purpose for combining materials by viewing the work of Charles Mackintosh, a chemist who created waterproof jackets. Watch the video The story of Charles Mackintosh – he invented rainwear! at . PC 4. In small groups, discuss: What materials did Charles combine to make his jacket waterproof? Why did he not just use all rubber? Or all fabric? E C 5. Students then apply this principle of combining materials that have different properties to draw and label a diagram of an underwater house, showing which materials they would combine together and why. They will need to consider the needs of an underwater house, what kind of properties would be useful and which materials possess those properties. Students should complete page 52 first, to guide their design. PA C Differentiation • Less capable students can be grouped together and provided with extra guidance and support. • More capable students can be grouped together to challenge each other and may choose another theme for their house, such as in space, in the desert etc. They will need to explore what properties these environments require. Reflection: 6. Students present their house design to the class and describe the materials they have chosen to use based on the properties required. C © R.I.C. Publications Low resolution display copy 50 Science: A STEM APPROACH YEAR 2 978-1-925431-95-7 R.I.C. Publications® – www.ricpublications.com.au
Chemical sciences LIVING IN A MATERIAL WORLD Combining materials images Lesson 3 What materials have been combined to make these things? Why shouldn't a car be all metal? Why does a cardigan not have wool buttons? Why is a window not made from glass only? © R.I.C. Publications Low resolution display copy Why shouldn't a jacket be all fur? R.I.C. Publications® – www.ricpublications.com.au 978-1-925431-95-7 YEAR Science: 2 A STEM APPROACH 51
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