A GOOD WORKING MODEL FOR SCIENCE FAIR : "ROPEWAY FROM WATERFALL"

You can make a ropeway from waterfall without any external source.We construct a turbane (you can use plastic spoons) and connect it into a wheel.And joining all the parts,you can make the above wheel rotating.Thus,connect the ropeway into that wheel.Ropeway can be made using thread and other plastic materials which have only small weight.The waterfall can be regulated by making dams.And an appropriate amount of water can be fallen through it.Thus,when water falls from dam,the turbane will rotate.And thus ropeway will work.To make this you want to be very talent.Those who know something abut the rotation of wheel can easily make this.