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Molten rock - Materials: Video playlist - BBC Bitesize
Molten rock from a volcano is seen solidifying as it cools.
↗ https://www.bbc.co.uk/bitesize/topics/zjty4wx/watch/zhx3rj6Molten rock from a volcano is seen solidifying as it cools.
↗ https://www.bbc.co.uk/bitesize/topics/zjty4wx/watch/zhx3rj6