| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermochromism toy set consisting of the simple thermochromism means of a simple structure using cold water or hot water as a cold or heat medium and a thermochromism toy element. SOLUTION: The thermochromism means 1 consists of a hollow elastic body 1a made of plastic in a toy shape provided with a small hole 1b on one end, and water is freely sucked and discharged from the small hole 1b by the pressurization/pressurization release of the hollow elastic body 1a. The thermochromism toy element consists of a plastic molding provided with a reversible thermochromism layer to be discolored by the cold water or the hot water.
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