Special Offer US $23.09 Happyxuan 5 sets/lot Kids diy Science Toys Experiments Reptile Robot Assemble Physics Models Kit Cr

Happyxuan 5 sets/lot Kids diy Science Toys Experiments Reptile Robot Assemble Physics Models Kit Cr

[32914688339] "if i listen i forget, if i see i remember, if i do i learn" -------Montessori Happyxuan 5 sets/lot Kids diy Science Toys Experiments Reptile Robot Car Assemble Physics Models Kit Creative Educational Gift Suitable age:3~12 years old Key features: DIY construction, easy to assemble, great project for kids with adult supervision Product functions:1.exercise kids hand-on ability 2.easy to opreate,give kids a sense of accomplishment one lot includes 5 sets as below: (1)DIY Ferris Wheel (2) DIY Electric Reptile Robot (3) DIY Electrostatic Snow (4) DIY Four Wheel Drive Car (5) DIY Vacuum Cleaner Note: the battery is not included in the set. The product is non-finished product. It need to be assembled by the buyer. (1)DIY Ferris Wheel Product material:Environmental protection plastic Product size:26*9cm Work principe:The principle of deceleration and force transmission is applied. When the power is turned on, the high speed and small torque of the motor are converted into the low rotation speed of the large revolver, and the high torque,so that the large rotation speed strongly drives the tourists to rise slowly and then slowly fall. battery, screwdriver are not included in the set. (2) DIY Electric Reptile Robot Productmaterial:Plastic Productsize:87mm*80mm Workprinciple:Afterthecircuitisturnedon,thedecelerationmotorrotatestodrivethecrawlerarmtomoveinteractively,sothatthe"bug"iscrawling. Poweredby2AAbatteries(notincluded) (3) DIY Electrostatic Snow Product material:ABS plastic Product size:90*75*86mm Working principle: Principle of triboelectric charging.Frictional electrification is a process of contact and separation that causes a positive and negative charge imbalance. Friction is a process of constant contact and separation, so frictional electrification is essentially contact separation and electrification. In everyday life, all types of objects may generate static electricity due to movement or friction. The product does not include batteries. (4)DIYFourWheelDriveCar Product material: ABS plastic Product size:120*120mm Cognitive goal: The motor can be converted into the mechanical energy of the small pulley rotation. The mechanical wheel is transmitted to the large pulley through the pulley. The small pulley radius is smaller than that of the large belt, so it can bring lower rotation speed and greater driving force. battery is not included. (5)DIYVacuumCleaner Product material:wood+plastic Product include:Ice cream bar, double-sided adhesive, wood, and screws, motors, stents, propeller Product size:25*6cm Working principle: The motor rotates at a high speed, which drives the fan to exhaust the air from the bottle mouth to the outside of the bottle, thereby forming a negative pressure in the bottle, and finally generates suction at the mouth of the bottle, and the paper dust is sucked into the bottle. Not included the bottles and AA battery