Steam Engine Model Low-Temperature Scientific Experiment Toy Craft DIY Children Gift $ 35.99 Feature: The assembled product has a collection value and it can be used as a pendulum or as a school experiment supply. Operation is simple, you just need to put a cup of hot water, preheat for 30 seconds to 1 minute, and turn the flywheel clockwise to start, then the engine will automatically rotate. Engine can convert thermal energy into engine mechanical energy, helping hands-on operation. And you can more intuitively know its low temperature working principle, and deepen your interest in physics. Entitled with pratical adoptability, such an education toy 's high playability can keep its attraction for a long time. Specification: Item Type: Engine model Package List: 1 x Engine Model
