{"product_id":"steve-spangler-science-geyser-tube-mentos-soda-chemical-reaction-experiment-for-kids-stem-science-kit","title":"Steve Spangler Science Geyser Tube: Mentos \u0026 Soda Chemical Reaction Experiment for Kids – STEM Science Kit","description":"\u003cp\u003eThe \u003cstrong\u003eSteve Spangler Science Geyser Tube\u003c\/strong\u003e lets kids launch a soda geyser up to 30 feet high by mixing Mentos candies with a 2-liter bottle of soda. This reusable STEM kit includes one sturdy loading tube and a pack of Mentos, using a double‑pull‑pin trigger to prevent accidental eruptions. Designed for school, camp, or backyard science fun, it’s a hands‑on way to explore chemical reactions.\u003c\/p\u003e\n\n\u003ch2\u003eHow the Geyser Tube Works\u003c\/h2\u003e\n\u003cp\u003eDrop Mentos candies into the tube, attach it to a 2‑liter bottle of soda (diet works best), then pull the pin. The candies fall into the soda, causing a rapid release of carbon dioxide that propels the liquid upward. The improved double‑pull‑pin mechanism gives you better control, so you can step back before the geyser erupts.\u003c\/p\u003e\n\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 Geyser Tube loading mechanism (reusable)\u003c\/li\u003e\n\u003cli\u003e1 pack of Mentos candies (enough for several launches)\u003c\/li\u003e\n\u003cli\u003eProduct instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eYou provide:\u003c\/em\u003e a 2‑liter bottle of soda (not included) and adult supervision.\u003c\/p\u003e\n\n\u003ch2\u003eCan You Reuse the Geyser Tube?\u003c\/h2\u003e\n\u003cp\u003eYes – the tube is designed for repeated use. Just reload with fresh Mentos and a new bottle of soda each time. The durable plastic construction holds up to multiple eruptions, making it ideal for classrooms, camps, and science fairs.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteve Spangler Science Geyser Tube Experiment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Geyser Tube, Mentos candies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGeyser Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 30 feet (9 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrigger Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble pull pin for controlled launch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReusable\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes – tube can be used many times\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRequired (not included)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2‑liter soda bottle (diet recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAge Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8+ with adult supervision\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTips for a Successful Launch\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eUse diet soda – it creates a taller geyser due to higher carbonation and less sticky residue.\u003c\/li\u003e\n\u003cli\u003eLoad the tube with 2–4 Mentos for best results.\u003c\/li\u003e\n\u003cli\u003ePull the pin swiftly and move back immediately.\u003c\/li\u003e\n\u003cli\u003ePerform outdoors to avoid cleaning up sticky soda indoors.\u003c\/li\u003e\n\u003cli\u003eWash the tube with water between uses to prevent clogging.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eCommon Questions About the Geyser Tube\u003c\/h2\u003e\n\u003ch3\u003eDoes it work with any soda?\u003c\/h3\u003e\n\u003cp\u003eYes, but diet soda produces a higher geyser because it lacks sugar, which can reduce fizz. Carbonated sodas with intense carbonation work best.\u003c\/p\u003e\n\n\u003ch3\u003eHow many Mentos do I need?\u003c\/h3\u003e\n\u003cp\u003eYou can use as few as 2 Mentos to achieve a 30‑foot geyser. More candies may increase the height slightly, but the effect is dramatic even with small amounts.\u003c\/p\u003e\n\n\u003ch3\u003eIs the tube safe for kids?\u003c\/h3\u003e\n\u003cp\u003eThe Geyser Tube is safe when used as directed with adult supervision. The double‑pull‑pin helps prevent accidental launches. Always point the bottle away from people and animals.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use the Geyser Tube for a science fair project?\u003c\/h3\u003e\n\u003cp\u003eAbsolutely. It’s a classic demonstration of nucleation and gas release. You can test variables like soda temperature, number of Mentos, or different soda brands to collect data.\u003c\/p\u003e","brand":"Steve Spangler Science","offers":[{"title":"Default Title","offer_id":58074608140591,"sku":null,"price":24.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/4478\/7503\/files\/steve-spangler-science-geyser-tube-mentos-soda-chemical-reaction-experiment-for-kids-stem-science-kit-1.jpg?v=1781459728","url":"https:\/\/toysforkid.co.uk\/products\/steve-spangler-science-geyser-tube-mentos-soda-chemical-reaction-experiment-for-kids-stem-science-kit","provider":"Toys For Kid","version":"1.0","type":"link"}