DIY saline water generates electricity stem science educational kits

DIY saline water generates electricity stem science educational kits

Experimental principle: It mainly uses the principle of salt water conduction. Under the action of the electrode electric field, the positive and negative ions in the solution move toward the negative electrode and positive electrode of the electrode respectively.

Oxidation-reduction reaction takes place on the electrode, indirectly making the electrons move in the solution. The brine is sodium chloride or electrolyte. In the electrolyte, Cu does not react as a positive electrode, Zn loses electrons, and acts as a negative electrode. The chlorine atoms in the electrolyte get electrons The reaction occurs on the copper, so that bubbles will be generated around the copper, and the zinc-copper is connected with the wire to form a closed loop, forming a primary battery.

                                                              Saltwater clock production steps

This experiment requires the use of salt, because the salt will melt when it encounters high temperatures and is not convenient for storage, so it is not equipped, please bring your own! ! !

 DIY instruction in English provided

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