Product name: KX1963 brine - powered rotating bell
Item no: KX1963 Salt water generates rotating bells
Size: 165 * 165 * 130 mm
Weight: about 80g
Material: wood + screw + motor + battery + salt + shaft + plastic accessories + alligator clip + wire + bell
Color: wood color
Battery: no
Packing: 200 PCS
Rules: 600 * 450 * 550 mm
From the candlelight night excursion in ancient times to the night view now, electricity has become increasingly important. Thanks to the progress of human science, now nature can also generate electricity, such as solar energy, wind energy, geothermal energy, etc.,

We all know that
The wind can generate electricity, the tide can generate electricity
Do you understand that
Today, let's learn about the principle of electricity generated by salt water

Experimental purpose:

Cultivate students' ability of hands-on operation and analysis

Preliminary understanding of the working principle of saltwater power generation


Experimental materials:

Wood + screw + motor + battery + salt + shaft + plastic accessories + alligator clip + wire + bell

Experimental steps:

Experimental principle:

Copper and zinc react chemically in salt water (electrolyte). When zinc loses electrons and copper gains them, it generates an electric current that lights up the LED. Saltwater power generation does not need any batteries, only a little saltwater can make the LED light on, can let children understand the knowledge of green energy, and form a good habit of environmental protection.

Everyone should develop the good habit of saving electricity!

!
Introduction of saltwater power generation: saltwater power generation is a safe, environmental protection, sanitation power generation mode, is a kind of oxidation reaction, its power generation principle is: AL+O2--AL2O3   Mg + O2 - MgO style
Metal and metal oxidation are non-toxic, harmless, environmentally safe substances. In the process of generating electricity, the black membrane continuously absorbs oxygen from the air. With the help of salt water, oxygen and water oxidize aluminum and magnesium into metal oxides.

Similar phenomenon: metal iron will rust in wet and rainy environment. The process is that under the action of water and air, the elemental iron gradually oxidizes into red iron tetroxide. The transformation of the electrons produced in this reaction we capture, that is, we can give electrons to humans. This kind of battery is commonly known as - air battery, recently air battery has been gradually researched and applied in automobile, outdoor power generation, outdoor lighting and other fields

Students have a deep understanding that metal elemental oxidation is oxidation (the main component of bauxite, iron ore and magnesium ore) can release energy, and oxide (the main component of bauxite, iron ore and magnesium ore) can become metal elemental under the action of electric decomposition (electrolysis), commonly known as steel, iron, aluminum. Among them, metal elemental oxidation gives off electricity, which is the reverse reaction of oxide electrolysis producing elemental matter. Popular understanding is that electrolysis contains electricity in the elemental metal, while REDOX reaction only releases the electricity contained in the elemental matter.


Safety warning:

The accessories in this product are special equipment for students to make experiments. Please ensure safety under the supervision of teachers and parents
Use it all! All products are prohibited! Not suitable for children under 3 years old. Do not press near fire source. If use
Before battery assembly, please check whether the circuit is unblocked, whether the accessories on the circuit are complete, and whether each contact is good
Ok, + is positive and - is negative on the battery. Be careful not to use glue on the eyes and skin during assembly.