{"product_id":"4pcs-colorful-office-thinking-hand-boiler-glass-science-energy-transfer-experiment-toy-gifts","title":"4Pcs Colorful Office Thinking Hand Boiler, Glass Science Energy Transfer Experiment Toy Gifts","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003e4Pcs Colorful Office Thinking Hand Boiler, Glass Science Energy Transfer, Children Science Experiment, Love Birds Color Meter Hand Boiler,Thermometer Spiral Glass Science Energy Museum Toy Gifts\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e4Pcs Colorful Office Thinking Hand Boiler, Glass Science Energy Transfer Experiment Toy Gifts\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e100% Brand New and High Quality! Hand boiler - boils the liquid with your own body temperature. Cup the lower chamber in your palm and watch how the liquid boils and rises through the tubes into the top chamber Hand Boilers are looped and twisted glass sculptures containing a liquid that will \"boil\" as heat is transferred from your bare hand. Once out of your hands, it takes a few minutes for the liquid to cool down and return to the large bulb. It is a pretty fascinating science toy and an excellent demonstration of energy transfer. Hand boilers demonstrate Charles's Law and vapor-liquid equilibrium. The colored liquid in the boiler is comprised of a volatile mixture of liquids that have a boiling point just above room temperature. The body heat from your hand causes the liquid to boil, which in turn makes the liquid evaporate, turning it to gas. The expanding gas pushes the liquid upwards and when you release your hand, equilibrium is re-established. The gas condenses into a liquid again and flows back into the lower bulb. Package include:4 * hand boiler\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Package include:4 * hand boiler\u003c\/li\u003e\n\u003cli\u003e✅ Great Graduation Gift, Science Experiment.\u003c\/li\u003e\n\u003cli\u003e✅ Valentine's Day Couples Love Meter.\u003c\/li\u003e\n\u003cli\u003e✅ Glass Sciences Energy Transfer.Office Thinking Hand Boiler.\u003c\/li\u003e\n\u003cli\u003e✅ About 6.25in tall\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Guarantees\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ FREE standard shipping within the United States (3–6 business days)\u003c\/li\u003e\n\u003cli\u003e✅ 100% money-back guarantee for lost or damaged items\u003c\/li\u003e\n\u003cli\u003e✅ Secure checkout with encrypted payment processing\u003c\/li\u003e\n\u003cli\u003e✅ Shipping via UPS, FedEx, and USPS\u003c\/li\u003e\n\u003cli\u003e✅ Ships to lower 48 states only (no PO Boxes \/ APO \/ FPO)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ 30-day hassle-free returns\u003c\/li\u003e\n\u003cli\u003e✅ Items must be unused and in original packaging\u003c\/li\u003e\n\u003cli\u003e✅ Full refund if item is not delivered\u003c\/li\u003e\n\u003cli\u003e✅ Guaranteed delivery within 6–7 business days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePayment Methods\u003c\/h3\u003e\n\u003cp\u003e✅ Credit Cards, PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, Meta Pay\u003c\/p\u003e\n\u003ch3\u003eCustomer Support\u003c\/h3\u003e\n\u003cp style=\"text-align:left;\"\u003e✅ Questions? Contact us at \u003cstrong\u003eSupport@GiftAbay.com\u003c\/strong\u003e\u003cbr\u003eWe respond within 24 hours on business days.\u003c\/p\u003e\n\u003cdiv class=\"seo-data\"\u003e\n\u003cp\u003e\u003cstrong\u003eSEO Title:\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKeywords:\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCategory:\u003c\/strong\u003e Toys \u0026amp; Games\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubcategories:\u003c\/strong\u003e Learning \u0026amp; Education, Science Kits \u0026amp; Toys\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":44708166828101,"sku":"KGABL1993681","price":29.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/3772\/9349\/files\/51xash_ttbL._AC.jpg?v=1772658680","url":"https:\/\/kids.giftabay.com\/products\/4pcs-colorful-office-thinking-hand-boiler-glass-science-energy-transfer-experiment-toy-gifts","provider":"Kids.GiftAbay","version":"1.0","type":"link"}