Product Name: KX2106 Desk Fan
Product Code: KX2106 Desk Fan
Dimensions: Approx. Length 90mm * Width 60mm * Height 135mm
Weight: About 45g
Material: Wooden
Color: Mixed
Is the device powered by batteries: Yes
Packing: 500 pcs
Box Specification: 600*450*550mm

Preface:

In today's society, where children's education is increasingly valued, scientific enlightenment education has gradually become an important topic of exploration in the field of education. More and more teachers and parents are beginning to
Emphasizing the cultivation of scientific literacy in children from an early age, so that children develop good personalities and behavioral habits from the very beginning. Parent-child interactive crafts can improve the quality of parent-child companionship, and change
Good parent-child relationships, the time we spend with our children without smartphones, iPads, or television is filled with joy, interaction, and communication. It can help cultivate the ability to solve problems on their own.
Decision-making skills are important for children to learn. They should first see and experience the problem themselves to solve it, because this is how parents, teachers, and others solve problems in the process of doing crafts. This can help develop children's problem-solving skills.
The imagination of children, in their world, cars can fly in the sky and the sun can be green... Playing with DIY crafts can cultivate children's ability to practice by using "
Different tools were used, allowing the child's small hands to fully engage in activities. Brushes, paints, scissors, hot glue guns, glue....., they were all willing to try out, and to a certain extent, they were also able to master them.
Degree of development of different skills. Improving children's self-confidence in the process of handcraft, we try all possibilities together, experience many failures, but always succeed, in a
To a certain extent, it has enhanced his self-confidence. When a child is exploring various tools and crafts, he is very focused, and if there is no external interference, he will continue to be so.
Excuse me, he can keep exploring.

The purpose of the experiment: To enable children to learn more about scientific knowledge and their own ability to practice by means of game entertainment.

Principle of Application: Desk fans convert electrical energy into mechanical energy and then into natural energy (wind energy). When the motor is powered, it drives the impeller to rotate at high speed, causing air to flow rapidly.
The speed of the fan can be increased, thus accelerating the dispersion of heat like the wind, making people feel cool.

Experimental Cognition: The force exerted between two objects is always mutual. When one object exerts force on the other, the other object must simultaneously exert force on this object.
The action of one force is always matched by an equal and opposite reaction force. These two forces are mutually called action force and reaction force. The action force and the reaction force are always of equal magnitude and opposite direction, acting along a straight line.

Knowledge Expansion: Types of Electric Fans Electric fans are classified based on their installation location into table fans, wall fans, ceiling fans, floor fans, table-floor fans, and box fans and window ventilation fans, among others.

Knowledge Extension: When we use fans in hot summer, we feel cool. Then, is the reason for the coolness that the fan makes the indoor temperature
The temperature has decreased. However, the situation is exactly the opposite. (Assuming there is no heat transfer between the room and the outside world) The temperature inside the room not only has not decreased, but it will actually increase. Let's

Here's the translation of the Chinese text into English: "Let's analyze the reasons behind the rise in temperature: When an electric fan is operating, due to the current flowing through the coil of the electric fan, the wires have resistance, so it is inevitable that heat will be generated."
Heat is released to the outside, so the temperature will rise. But why do people feel cool? Because there is a lot of sweat on the surface of the human body, when the fan starts working,

The air inside the room will circulate, so it can promote the rapid evaporation of sweat. Combining with the fact that "evaporation requires a lot of heat," people will feel cool.

Safety Warning:

All the accessories in this product are specially designed for student experiments. Please use them under the supervision and guidance of your teacher and parents to ensure safety! All products are prohibited from consumption! They are not suitable for children under the age of three.
The following children use, please do not press near the fire source. If used to assemble the battery before, please check whether the circuit is unimpeded, whether the circuit accessories are complete, and whether each contact is in contact.
Good, the + on the battery is the positive terminal and the - is the negative terminal. Be careful during the assembly process, and if glue is used, do not get it in your eyes or on your skin.