In the visual you can see two water tanks with different levels. The difference in the levels will force the liquid to circulate from one tank to the other the moment we lift the intervening barrier. We have placed a device to measure the current and a device which uses the energy of the water (a turbine for example) in the circuit. Carry out the suggested activities paying special attention to the current of water and the factors which increase or decrease it. Also think about what happens when we place a water pump between the two tanks. Would the energy we use in the pump be equal to that produced in the turbine?