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What is a lever mechanism? - KS1 - BBC Bitesize
Levers use fulcrums to help to move and lift heavy loads, as well as make things go up and down without too much effort.
↗ https://www.bbc.co.uk/bitesize/topics/zdt7nk7/articles/z7xjtcwLevers use fulcrums to help to move and lift heavy loads, as well as make things go up and down without too much effort.
↗ https://www.bbc.co.uk/bitesize/topics/zdt7nk7/articles/z7xjtcw