This week the pupils in P7 took part in the Wind Power Challenge. Their task was to design and make a simple wind turbine capable of lifting a cup off the floor to bench height.
![The winning team with their design.](https://blogs.glowscotland.org.uk/wl/puscpsnews/files/2016/02/DSCN17611-150x150.jpg)
Here are some more of their designs.
What do you think happened when the designs were put to the test?