you need to do you have a small turbine and generator by the axis of the movement of turbine generator to you.
you can make something related to rainwater harvesting
Check the related links for a good source.
Working, $10-$25, depending on condition.
Hydro energy is energy made by water.
You can easily make working models displaying energy conservation using the following: solar panels; wind turbines; and hydro electricity.
Station Model.
A station model.
interpret a station model and find relative humidity from data shown in model
Chance Stroot
working model of earthquake
There are a few ways to make an English working model. The exact model details depend on the type of English working model you want.
station model