Extreme Geyser Tube

Q: Can you attach a string to the cap or pull pin, so kids can sit out of the way and pull the string?

Absolutely! We recommend a thin sting to go around the pull pin and a light pull motion that won't break the geyser. Try it in your hands a couple of times before attaching the geyser to a bottle.

Q: Does this only make one geyser or more than one? -- like can I keep re-using it as long as I buy new coke and new mentos?

Only one geyser. Yes, you can use it a lot of times. There is nothing to break by time, just be gentle when you putting it on bottle-you can throw mentos to coke by accident before you tighten it

Q: Can I use carbonated soda water?

Haven't seen if it will work with anything other than soda, but it should work the same.... Give it a try.

Q: I am thinking about ordering a few of these for an experiment with my students. Do you lose the tips when it explodes? Are the tips necessary?

The tips stay on. You can order the one with different tips its even more fun.my 8 yr old had a blast! Some tips shoot higher some have More then one stream.

Product ID: 367632382

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Details

Size
2 x 10 x 2.7
Brand
Steve Spangler
Theme
Chemistry
Age Range (Description)
Kid
Item dimensions L x W x H
25.4 x 5.1 x

🔧Double-pull pin & tight seal tech

🚀Up to 30-foot geyser height

🧪3 unique eruption cap styles

Frequently Bought Together

Steve Spangler Science Extreme Geyser Tube - Science Kit for Kids - Mentos & Soda Lab Experiment - Includes Tube, Candy, & Unique Spray Caps - Chemistry Magic - Classroom STEM Project

Mentos Chewy Mint Candy Roll, Mint, Non Melting, Party, 14 Count (Pack of 15) - Packaging May Vary

Mentos Candy, Mint Chewy Candy Roll, Fruit, Non-Melting, 1.32 Oz , 6 count(Pack of 1)

Description

🚀 Ignite your inner scientist with explosive fun and flawless eruptions!

MESS FREE MASTERY - Innovative double-pull pin and tight seal design keep you dry and in control—no spills, just thrills.
PARTY CLASSROOM READY - Perfect for teachers, parents, and party hosts looking to ignite excitement and group learning.
STEM LEARNING MADE EPIC - Engage critical thinking and creativity with hands-on chemistry that sparks curiosity and confidence.
SKY HIGH SCIENCE THRILLS - Launch spectacular 30-foot soda geysers with precision every time.
TRIPLE CAP EXPERIMENTATION - Switch between Turbo, Triple, and Soaker caps for diverse eruption styles that wow every crowd.

The Extreme Geyser Tube by Steve Spangler Science is a precision-engineered educational kit that creates up to 30-foot soda geysers using Mentos and soda. Featuring three interchangeable caps for varied eruption styles and a double-pull pin with tight seal to prevent messes, it’s designed to deliver safe, spectacular science demonstrations. Ideal for STEM learning at home, school, or parties, it encourages creativity, critical thinking, and hands-on exploration.

Specifications

Educational Objective(s)	Creative Skills, Critical Thinking, Exploratory Skills, STEM
Model Number	857155
Number of Game Players	1
Assembly Required	No
Batteries Required	No
Batteries Included	No
Material Type(s)	Plastic
Product Dimensions	25.4 x 5.08 x 6.86 cm; 37.5 g
Item model number	857155
Manufacturer	Steve Spangler Science
Country of Origin	USA
Item Weight	37.5 g

Have a Question? See What Others Asked

Can you attach a string to the cap or pull pin, so kids can sit out of the way and pull the string?

Does this only make one geyser or more than one? -- like can I keep re-using it as long as I buy new coke and new mentos?

Can I use carbonated soda water?

I am thinking about ordering a few of these for an experiment with my students. Do you lose the tips when it explodes? Are the tips necessary?

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Great experience from order to delivery. Highly recommended!

1 week ago

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