Colorful Office Thinking Hand Boiler, Glass Science Energy Transfer, Children Science Experiment, Love Birds Color Meter Hand Boiler, 4 Pcs (Red&GreenBlue&Purple) By C&H®
- Product Dimensions: 9 x 3 x 7 inches
- Item Weight: 8 ounces
- Shipping Weight: 8.8 ounces
- Manufacturer recommended age: 8 years and up
- Great Graduation Gift, Science Experiment.
- Valentine’s Day Couples Love Meter.
- Glass Sciences Energy Transfer.Office Thinking Hand Boiler.
- Photos for display only, per order only four items.
- Dimensions:8x7x2 2oz Safty Hard Box.
Hand Boilers are looped in the twisted glass sculptures containing a liquidthat will “boil” as heat is transferred from your bare hand. Simply hold thelarge bulb end on the bottom in the palm of your hand and within minutes, yourbody heat from your hand will cause the liquid to rise. Once out of yourhands, it takes a few minutes for the liquid to cool down. Pretty fascinatingscience toy and an excellent demonstration of energy transfer.