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Science: Unit 5 Materials .

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What is it made of? plastic metal wood paper fabric glass

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What’s made of glass? A window is made of glass. What’s made of wood? A door is made of wood. What’s made of paper? A book is made of paper. Song : What is it made of? What’s made of plastic? A pen is made of plastic. What’s made of fabric? A T-shirt is made of fabric. What’s made of metal ? A paper clip is made of metal.

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Trees are natural. Paper is manufactured. Wool is natural. Glass is manufactured. Rocks are natural. Plastic is manufactured. Cotton is natural. Natural and manufactured .

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Natural and manufactured materials Natural materials are made by nature. Wood, wool and leather are natural materials. Manufactured materials are made by people. Plastic, paper and glass are manufactured materials Presentation : materials

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Properties of materials . Materials have different properties. They can be transparent or opaque , bendy or rigid, soft or hard , smooth or rough , shiny or dull . dull shiny rough smooth

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Properties of materials Glass is transparent. Fabric is bendy Properties : transparent or opaque , bendy or rigid, soft or hard , smooth or rough , shiny or dull . paper metal glass fabric wool plastic wood cotton rocks

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Bend, twist, stretch , squash The shape of some materials can be changed by bending, twisting, stretching or squashing them.

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