Product Name: Electric Snow and Ice

Product Number: DX 118

Package: Packaging Bag

Product Size:150*77*140

Single weight: 0.12 KG

Packing Quantity: 600 PCS

Box Size: 60*50*55 CM

 What is elasticity? What is friction? What principle does the elusive submarine use? Why doesn't a ship made of steel sink?With these questions, 'Koprol Little Experiments Series' will take you to explore the mysteries of mechanics.
This series of small experiments allows children to conduct their favorite scientific experiments without leaving home, exploring the mysteries of science.
Experiment content:
Electrostatic—Electric Snowflakes
Introduction to Operation Methods and Principles
  Insert the battery into the battery box and connect the circuit, and the rotation of the fan blades will drive the foam particles to rotate rapidly. After a few seconds, disconnect the circuit.Open,
We found that foam particles were adsorbed on the inner walls of the plastic cup. This is because after being powered on, the rotation of the fan blades generated airflow, which made the foam fly up.Come here.Due to the limited space, the flying foam and the inner wall of the plastic cup continuously perform 'contact separation' and generate static electricity. When the fan stops, Due toThe foam is very light and can easily be attracted by static electricity, so we see them adhering to the inner walls of the cup without falling off.
 The cause of static electricity
  In daily life, static electricity is generated when any two objects of different materials come into contact and then separate. When two different objects come into contact with each other,timeThis will make an object lose some charge (electrons transfer to another object) and become positively charged, while the other object gains some charge and becomes negatively charged.IfIn the process of separation, it is difficult for charges to neutralize each other, and charges will accumulate to make the object carry static electricity. Therefore, when an object comes into contact with another object and then separates, it will carry a static charge.
上静Electricity. It is a typical 'contact separation' electrostatic phenomenon when a plastic film is peeled off from an object. In daily life, when you take off clothes, it is also a form of contact separation electrostatic phenomenon.ProduceThe static electricity is also "contact separation" to charge.
  We all know that friction can cause electricity, but we rarely hear of contact causing electricity. In fact, friction causing electricity is a form of contact and separation that causes an imbalance in positive and negative charges.ofProcess. Friction is a continuous process of contact and separation, so the essence of friction electricity is contact and separation electricity. In daily life, various objects都可以Can produce static electricity due to movement or friction.
Experimental features:
1. Transform passive learning into active learning;
II. Transform knowledge education into one that emphasizes both knowledge and ability;
Three, transform written teaching into three-dimensional teaching, allowing science to 'fly' off the paper;
Fourth, transform indoctrination education into enlightenment education.
V. Transform the traditional single-sided teaching method into a two-way interaction between teachers and students.
Experimental results:
1. Ability to explain natural phenomena around us in layman's terms;
2. Able to discover the prototype of experimental works from daily life;
Three, can enhance children's interest in mathematics and science and improve their academic performance;
Fourthly, it can cultivate children's ability to identify problems and solve practical problems;
V. Practice reveals the truth, so that your child no longer becomes a high-scoring talent who only talks about war from afar.
Experiments can enhance the following abilities in children -- practical ability; language expression ability; mathematical and physical ability; observation ability; imagination ability.
Logical thinking ability; innovative and inventive ability; the ability to solve practical problems.

Science and technology models mainly refer to land, sea, and air models. Science and technology model activities integrate science and competition, manual and brain work, and are deeply loved by a wide range of teenagers. Its main role is also to cultivate and improve the comprehensive manual innovation skills and high-quality of teenagers. Therefore, in the new form of deepening reform and vigorously promoting quality education at the turn of the century, actively carrying out science and technology model activities is an effective measure to implement quality education in an all-round way.
Expand Horizons and Enrich Scientific Knowledge
Science and technology model activities are rich in knowledge. For example, in the process of making and sailing model ships, students can understand why ships float, how ships maintain stability, why propellers generate power, and how ships move quickly. If we go deeper, students will encounter radio remote control transmitting and receiving machines, or master the principles of force, density, gravity, pressure, magnetic field, ship construction, engine construction, and radio material selection. Many of these knowledge are not in the "textbook" and are often needed in life. This will inspire students to think about other scientific and technological knowledge that comes from animal inspiration. Can you dare to imagine and make a science and technology model? Some may think of the inspiration from insects such as dragonflies and planes, or from fish shapes such as torpedoes, and can make some simple airplane models.In this way, students will come into contact with a variety of knowledge in science and technology model activities, which supplements a lot of book knowledge and opens up their horizons. It also enriches their extracurricular life and allows them to learn more about scientific knowledge.
Cultivate logical and thinking abilities
The technology model activity requires all participants to have a dialectical, holistic, and rigorous scientific approach in their thinking methods." "Although the sparrow is small, it has all the essential organs." The tiny technology model is a scaled-down version of large, real vehicles, ships, and airplanes; it is an integrated whole, where even a small change can affect the whole.
A model airplane that competes in duration in the air must go through two stages: high-speed climb and low-speed glide. The adjustment for the climb stage mainly involves the adjustment of the pull force line and the angle of attack after the wing is twisted. The position of the center of gravity, the installation angle of the wing and the horizontal tail, and the directional rudder all have an impact on the flight attitude of the airplane during climb, but these changes directly affect the performance of the model during the gliding stage. Therefore, in the design and adjustment, it is necessary to consider these stages comprehensively, as they have different loading conditions and solutions. For example, in the design and production of car, ship, and airplane models, the selection of materials for strength, rigidity, and weight is very serious. It is necessary to choose one of the best schemes from both. Therefore, in the scientific model activity, the thinking method requires adolescents to have a dialectical, holistic, and scientific approach. Otherwise, a small mistake can make the performance of the scientific model worse or even lead to failure.
It can be seen that the initial thinking of people begins with actions. The thinking characteristics of students are mainly in the form of concrete image thinking, and thinking cannot be separated from images and actions. In the process of operation activities, students need to move their eyes, move their hands, and think with their brains, speak with their mouths, so that the external operation process and the internal intellectual activities of dialectical, holistic, scientific, etc. are organically combined, which has effectively promoted their thinking development.
Three Cultivate Good Habits
Science and technology model activities are beneficial for shaping students' good personalities, cultivating their strong willpower and spirit of innovation, as well as their attention to detail and patience, forming a rigorous scientific attitude in doing things.
1. Scientific scheduling of time. Students face homework and various interests, talent cultivation, all need a certain amount of time and energy. Students must scientifically and reasonably arrange their time to achieve order and efficiency, without being overwhelmed.
2, having a beginning and an end. Nowadays, most students are only children, afraid of suffering and lack of perseverance, often give up halfway. If they choose activities that require them to use their hands and brains, let them try their best to complete a science and technology model work, their interest will rise again, because they all love to play with dynamic toys. From this perspective, it will also make them gradually overcome the laziness in the process of making, and persist in completing their own masterpieces. Thus, it also cultivates their habit of having a beginning and an end.
3, Collective Spirit. Students work together to design, create, and compete, helping, comparing, and learning from each other. This fosters a collective spirit among students, making them consider others and learn how to get along with others. In the socialist market economy, this collective spirit is essential for working together with others to create great achievements. The era of isolating themselves to boil pitch like Marie and Pierre Curie is no longer. Now, the society needs the cooperation of talent groups like the Apollo Moon Landing Project to transform the world and create the future.
Four: Stimulate students' interest in exploring the field of science and technology
A scientist or inventor, without a doubt, develops a profound interest in the things they love, and then explores and studies them, eventually achieving significant results in that field. Now, by having students create and assemble technology models, we allow them to understand the formation of power, the generation of buoyancy, and the effects of magnetic fields, laying a solid foundation for their future research and exploration in this area. This also sows the seeds of success.
In conclusion: actively developing science and technology model activities is an effective measure to implement quality education in schools, cultivate students' comprehensive development in morality, intelligence, physical, beauty, and labor, and improve their comprehensive quality. It is also an effective measure to implement the spirit of the opinions on strengthening popular science work issued by the Central Committee of the Communist Party of China and the State Council, as well as the National Fitness Program, and to fully implement the "Science and Education Revitalize the Country" strategy proposed by the Party's 15th National Congress.