Conductors and Insulators
★Exhibit Content: Conductors and insulators, human body conductivity ★Interaction: Electromechanical interaction ★Operation: 1. Place different materials on the conductive cylinders and observe the changes in the car and lights; 2. Hold the conductive cylinders with both hands and observe the changes in the car and lights. ★Exhibit Description: The exhibit features a conductor and insulator experiment platform, which consists of a car, a complete circuit, a light strip, two conductive cylinders, and various experimental materials (plastic, glass, wooden sticks, cardboard, stone, metal wire, etc.). Visitors can place the above objects on the conductive cylinders respectively and observe whether the car runs and whether the middle light turns on, thereby determining whether the material is a conductor or an insulator, and classify the identified materials into two categories. They can also try holding the two conductive cylinders with both hands to determine whether the human body conducts electricity. ★Scientific Principle: The exhibit allows visitors to understand which items we commonly encounter in daily life are conductors, which are insulators, which conductors have strong conductivity, and which have weak conductivity. After an atom gains (or loses) electrons, it is no longer called an atom but an ion. Under the same ion concentration, the more charges each ion carries, the stronger its ability to transport charges, i.e., the stronger its conductivity. The human body can conduct electricity because it contains various trace elements such as calcium, sodium, and potassium. Also, because human skin sweat contains a large amount of water, and water contains a large amount of electrolytes, this exhibit uses human hands as electrolytes to generate current, and observe the brightness of the light and the movement of the car. This shows that humans are conductors, and we should pay attention to safe electricity use in daily life.
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- 1.2*0.7*1.1m 1.2*0.7*1.1mDimensions: 1.2*0.7*1.1m Brand: KexMall Model: PopsciCat-ElectroMagnetic-090 1. Materials: ① Platform: frame 2mm cold-rolled sheet, surround 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Instruction sign: 5mm acrylic UV printing ④ Maintenance door: 2.0mm cold-rolled sheet surface baked paint ⑤ Protective cover: transparent acrylic + custom color acrylic according to actual needs ⑥ Electrical control box: cold-rolled sheet baked paint box, containing control circuit, switching power supply, circuit breaker, terminal blocks, etc. 2. Main configuration: ① Electrical control: electrical logic control system, equipped with Guanjian® K1 type PLC controller with protection specially for science exhibits ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Experimental materials: 6 types, conductors and insulators ④ Light bulb: pure white, DC24 power supply ⑤ Car: custom track car 3. Exhibition requirements: ① Energy requirement: AC100-240V, 50/60Hz200W (standard three-wire socket) ② Installation foundation: place directly ③ Entry passage: door frame size (width×height) ≥0.8m×1.8m, continuous turning interval ≥1.8m ④ Maintenance passage: not required
★Exhibit Content: Conductors and insulators, human body conductivity ★Interaction: Electromechanical interaction ★Operation: 1. Place different materials on the conductive cylinders and observe the changes in the car and lights; 2. Hold the conductive cylinders with both hands and observe the changes in the car and lights. ★Exhibit Description: The exhibit features a conductor and insulator experiment platform, which consists of a car, a complete circuit, a light strip, two conductive cylinders, and various experimental materials (plastic, glass, wooden sticks, cardboard, stone, metal wire, etc.). Visitors can place the above objects on the conductive cylinders respectively and observe whether the car runs and whether the middle light turns on, thereby determining whether the material is a conductor or an insulator, and classify the identified materials into two categories. They can also try holding the two conductive cylinders with both hands to determine whether the human body conducts electricity. ★Scientific Principle: The exhibit allows visitors to understand which items we commonly encounter in daily life are conductors, which are insulators, which conductors have strong conductivity, and which have weak conductivity. After an atom gains (or loses) electrons, it is no longer called an atom but an ion. Under the same ion concentration, the more charges each ion carries, the stronger its ability to transport charges, i.e., the stronger its conductivity. The human body can conduct electricity because it contains various trace elements such as calcium, sodium, and potassium. Also, because human skin sweat contains a large amount of water, and water contains a large amount of electrolytes, this exhibit uses human hands as electrolytes to generate current, and observe the brightness of the light and the movement of the car. This shows that humans are conductors, and we should pay attention to safe electricity use in daily life.
- 0.9×0.7×1.0m 0.9×0.7×1.0mDimensions (L×W×H): 0.9×0.7×1.0m Brand: KexMall Model: PopsciCat-ElectroMagnetic-091 1. Materials: ① Platform: frame 2mm cold-rolled sheet, surround 2.0mm cold-rolled sheet, surface baked paint ② Tabletop: Kelesi artificial stone, thickness ≥12mm, with flame-retardant board underneath ③ Panel: blue fireproof decorative panel ④ Test container: transparent acrylic material ⑤ Instruction sign: 5mm thickness acrylic UV printing ⑥ Maintenance door: 2.0mm cold-rolled sheet surface baked paint 2. Main configuration: ① Electrical control: electrical logic control system, equipped with Guanjian® K1 type PLC controller with protection specially for science exhibits ② Switching power supply: AC-DCS-60-12/24 input AC100-240V, 50/60Hz, output power 60W ③ Experimental materials: 8 types, conductors and insulators ③ Elastic wire test probe ④ HF-PANDA sound and light indicator module 3. Exhibition requirements: ① Energy requirement: AC100-240V, 50/60Hz80W (standard three-wire socket) ② Installation foundation: exhibit placed directly on the floor ③ Entry passage: door frame size (width×height) ≥1.2m×1.8m, continuous turning interval ≥2.5m ④ Maintenance passage: not required
★Exhibit Content: Conductors and insulators, differences in conductivity of different materials ★Interaction: Electromechanical interaction ★Operation: 1. Participants connect conductors of different materials into the circuit; 2. Observe the changes in the colored lights. ★Exhibit Description: This exhibit mainly consists of a square operation table, multiple sets of test rods made of different materials, a pair of test probes, an indicator device with sound and light prompts, and a set of pipeline components for circuit connection. It is a highly recommended interactive experience exhibit in the KexMall exhibit mall. Visitors can personally use two probes to contact various pre-prepared material samples. When the probes contact the material and connect the internal circuit, by observing whether the indicator light is on or off, they can intuitively and clearly distinguish between conductors and insulators, and further compare the strength of conductivity of different materials, thereby gaining direct cognitive experience through interactive operation. ★Scientific Principle: The ability of an object to conduct current is called conductivity. Metal materials contain a large number of freely movable charges (such as free electrons), so current can easily pass through; such substances are conductors. Materials such as plastic and rubber have very few freely movable charges inside, which greatly hinder current, so they are not easy to conduct electricity and are classified as insulators. In fact, the conductivity of a material fundamentally depends on the number of free charges it can provide internally. The more free charges, the better the conductivity; conversely, the worse. This exhibit reveals this basic electrical principle to the audience through intuitive circuit on/off phenomena.
- 1.4×0.7×1.1m 1.4×0.7×1.1mDimensions (L×W×H): 1.4×0.7×1.1m Brand: KexMall Model: PopsciCat-ElectroMagnetic-092 1. Materials: ① Platform: frame 2mm cold-rolled sheet, surround 2.0mm cold-rolled sheet, surface electrostatic baked paint ② Tabletop: ≥12mm artificial stone tabletop ③ Display vertical board: sheet metal spraying + transparent acrylic window ④ Material support to be tested: insulating plastic ⑤ Instruction sign: 5mm thickness acrylic UV printing ⑥ Maintenance door: 2.0mm cold-rolled sheet surface baked paint 2. Main configuration: ① Electrical control: electrical logic control system, equipped with Guanjian® K1 type PLC controller with protection specially for science exhibits ② Milliammeter: range 0～500mA, pointer mechanical dial, external transparent protective cover ③ Indicator bulb: DC12V, white LED lamp beads, with insulating lamp holder ④ Sample components to be tested: copper, iron, aluminum, lead, wooden stick, nylon, ceramic, graphite, a total of 8 standard test rods ⑤ Conductive test probe: metal probe head, with retractable spiral wire 3. Exhibition requirements: ① Energy requirement: AC100-240V, 50/60Hz60W (standard three-wire socket) ② Installation foundation: exhibit placed directly on the floor ③ Entry passage: door frame size (width×height) ≥1.3m×1.8m, continuous turning interval ≥2.5m ④ Maintenance passage: not required
★Exhibit Content: Conductors and insulators, differences in conductivity of different materials ★Interaction: Electromechanical interaction ★Operation: 1. Use the stylus to contact the touch points of various materials to connect the circuit; 2. Observe the changes in bulb brightness and the pointer of the ammeter. ★Exhibit Description: This exhibit is a standardized desktop electromechanical science exhibit, suitable for science exhibition halls and campus science education scenarios. It is composed of a sturdy baked paint operation table, a transparent acrylic display vertical board, eight groups of test sample rods of different materials, a pointer ammeter, LED indicator lights, conductive test probes, and a built-in electrical control system. The exhibit selects eight typical materials: copper, iron, aluminum, lead, graphite, wooden stick, nylon, and ceramic, covering metals, non-metals, polymers, and insulating materials, and builds a controllable comparative detection circuit. Visitors manually connect various samples to the circuit by holding probes, and rely on the deflection amplitude of the ammeter pointer and the brightness changes of the bulb to intuitively compare the conductivity of different materials and clearly distinguish conductors, semiconductors, and insulators. In the form of hands-on interaction, abstract electrical knowledge is visualized, helping visitors intuitively understand the differences in material conductivity and enhancing the effectiveness of science learning. ★Scientific Principle: Material conductivity is a basic physical property, fundamentally determined by the number and mobility of free charges inside the substance. Materials such as metals and graphite are rich in free electrons, which can move directionally under voltage to form a stable current, with low resistance and good conduction, and are conductors. Materials such as wood, nylon, and ceramics have electrons tightly bound and almost no freely movable charges, so they cannot form an effective current, the circuit is difficult to conduct, and the resistance is extremely large, so they are insulators. The exhibit uses a unified low-voltage circuit for comparative experiments, eliminating external interference, and through intuitive sound and light and instrument data changes, clearly confirms the electrical law that material structure determines conductivity, vividly popularizing the core scientific principle of conductors and insulators.
Review
Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★ Overall Rating: ★★★