Welcome to our shop! 1. Understand circuits and necessary components, including batteries, battery holders, conductors, electromagnets, and other devices that help generate power. 2. Excellent simple, fun DIY material for beginners; connect and build your own experimental inventions of electrical and magnetic circuits. 3. The perfect hands-on course to teach thinking, engineering skills, and creativity in the classroom or at home. 4. Loved by teachers, parents, and DIY enthusiasts; powered by 2 AA batteries (not included), high sensitivity, and convenient to use. 5. Used as a development tool by teachers in classes, summer camps, and schools worldwide. Item Type: Physics Circuit Kit Material: Plastic and Battery: 2 x AA (not included) Some experimental operations are as follows: Experiment 1: Magnetic Car – using the principle of like-pole repulsion, note the use of magnets and a magnetic car to achieve like-pole repulsion, allowing the magnetic car to move. Experiment 2: Circuit Connection – lighting a bulb, requires a power supply (battery box + battery), switch, wiring, lamp holder, and bulb. The elements needed for the circuit can be learned by turning it on and off. As soon as the circuit is closed, the bulb lights up. Experiment 3: Series and Parallel – in everyday life, we connect multiple bulbs together. How does this work? What types of connections are there? Series: One switch can control multiple bulbs; multiple switches to control one bulb. Parallel: One switch controls one bulb without affecting each other. Experiment 4: Production of Red and Green Light Bulbs – wiring must be carefully considered and not reversed. Are the red and green lights in series or parallel? Experiment 5: DIY Electromagnet – an electrified conductor is surrounded by a magnetic field; an electromagnet is activated into a magnet, which can attract coins, nails, etc. To increase magnetism, add a battery in series; the electrical rheology in the circuit is large, and the magnetism of the electromagnet is stronger. Note: This circuit cannot be powered for a long time; the circuit is a short circuit, the heating is large, be careful not to be burned by the electromagnet! When the compass is placed near the coil, the compass will deflect, meaning there is a magnetic field around the coil when it is energized. Package Includes: 1 x SPDT Switch 2 x SPST Switch 2 x Base 1 x Cassette 1 x Buzzer 2 x Battery Box 1 x Red/Green Light 6 x Wires 1 x Electromagnet 1 x Compass 1 x Bag of Foam 1 x Bar Magnet 1 x U-Type Magnet 1 x Magnetic Car 4 x Bulbs 1 x Artificial Fur 1 x Tube