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What are bridges made from? - Materials: Video playlist - BBC Bitesize
The different types of materials used to make bridges.
↗ https://www.bbc.co.uk/bitesize/topics/zjty4wx/watch/zdjsvk7The different types of materials used to make bridges.
↗ https://www.bbc.co.uk/bitesize/topics/zjty4wx/watch/zdjsvk7