DIY Kits STEM Electric Wind Car Scientific Science Experiment Toy Premium Wind Power Car Kids

Label:Yes Color: as the pics Recommended Age: 5 years old or above Battery: NOT Including Size: 12.5 X 12 X 7cm/4.92 X 4.72 X 2.76" Material: Plastic + Wood

Purpose: 1. Use the weight drop to drive the wheel rotation principle to build a car. 2. Let students simply understand the conservation of energy.

Experimental Report: When the weight falls and the wheel rotates, what is the top of the shelf? It is called a pulley, so what is the role? It is possible to change the direction of the force. The weight is moved downward by gravity to produce downward kinetic energy. The rope and the fixed pulley are used to change the direction of the force and the other end becomes the upward movement. The rope pulls the rope wound on the shaft to make the wheel turn to achieve the purpose of driving.

Warm Tips: 1. When assembling the product that requires the circuit, pay attention to the fact that the red wire is connected to the positive terminal of the battery case; the blue wire is connected to the negative terminal of the battery case. 2. All products is NOT including battery, the accessories are random in color, color is NOT specified, please read it carefully before purchasing. 3. Contains small accessories and sharp objects, children must be accompanied by an adult, please take care of children to avoid swallowing.

Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement.

Package List: 1* DIY Electric Wind Car Toys Kit (not include the battery)