Tedco Toys X4231 Hand Boiler Small
Kids are always fascinated by Hand Boilers! Demonstrates Charles' Law and the laws of energy transfer. Includes learning guide for teaching how Hand Boiler works and key scientific terms. Popular as a collector's item or as a souvenir, hand boilers demonstrate the science of temperature and gas pressure change. But, really, they are just plain fun! This small version packs a ton of fun into a mini science toy. For ages 14+.