What new insight or understanding did you gain from this video?
Hydroelectric power station
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Science
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1st - 6th Grade
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Hard
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The video explains why salmon need ladders, focusing on the impact of hydroelectric power stations. It describes how these stations generate electricity using water and how dams can block salmon from swimming upstream to spawn. To help salmon overcome this obstacle, fish ladders are built, such as the one in Pitlochry, Scotland.
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