Headerbs High Borosilicate Glass Hand Boiler, Innovative Novel Thermometer Toy Hand Boiler Stress Relief Toy Home Ornament Birthday Gift Science Teaching Tool

Price: $16.78
(as of Jul 16, 2025 12:34:59 UTC – Details)

Product Description

Headerbs High Borosilicate Glass Hand Boiler, Innovative Novel Thermometer Toy Hand Boiler Stress Relief Toy Home Ornament Birthday Gift Science Teaching Tool

Principle The heat on your hands causes the liquid to boil, and the boiling evaporates the liquid into a gas. The expanding gas pushes the liquid upward, and when you release your hand, the equilibrium is re-established. The gas condenses again into a liquid and flows back down the lower bulb.

Hand Boiler Toy It is a looped and twisted glass containing a liquid that will ”boil” as heat is transferred from your bare hand, very interesting.

Science Teaching Tool Once leave your hand, it takes a few minutes for the liquid to cool down and return to the large bulb. This is a very interesting science toy and a great demonstration of energy transfer.

Specification:

Condition: 100% Brand New

Item Type: Thermometer Toy

Material: High Borosilicate Glass

Product Size: Approx. 16.5 x 5 cm / 6.5 x 2 in

Weight: Approx. 67g / 2.4oz

Package List:

1 x Thermometer Toy

Note:

1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding.

2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.

[Hand Boiler Toy] It is a looped and twisted glass containing a liquid that will ”boil” as heat is transferred from your bare hand, very interesting.
[Principle] The heat on your hands causes the liquid to boil, and the boiling evaporates the liquid into a gas. The expanding gas pushes the liquid upward, and when you release your hand, the equilibrium is re-established. The gas condenses again into a liquid and flows back down the lower bulb.
[Stress Relief] Boil the liquid with your body temperature and observe how the liquid boils and rises through the tubes into the upper container.
[Science Teaching Tool] Once leave your hand, it takes a few minutes for the liquid to cool down and return to the large bulb. This is a very interesting science toy and a great demonstration of energy transfer.
[Vapor-liquid Balance] This toy proves the vapour-liquid equilibrium, the colored liquid in the toy is a volatile mixture with a boiling point just room temperature.