

A modern kind of waterwheel is the
water turbine
. Water turbines are built
into the bottoms of dams. Water from the
reservoir behind the dam turns the turbine
to generate
electricity
.
High-pressure water flows into a chamber
above the turbine. Water then flows through
the turbine, pushing on the turbine blades
as it goes. The blades turn a shaft, which is
connected to the generator.
Huge generators are built into
the base of Hoover Dam in
Arizona and Nevada.
Water pushes the
blades as it flows
through the turbine.
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