Steve Spangler's Geyser Tube Event Pack Science Kit for Classrooms (Pack of 10)

This is such a hit every year. Love this kit. You only need to buy once and just buy mentos the following years. Great for the beginning of the year activities in science or just first days of school!

these are a little flimsy but worked good for my class

Love the idea, but two of our tubes came with no lids. Frustrated and disappointed we did the experiment after our return window closed

I didnt even buy this product. It just looked like a money grab. $50 for some plastic tubes and mentos. Kinda seems insane, that or $50 is now worth $5.

One of the best lab times outside for any age. The device delivers then mentos with a pull. a couple shot onto me as the pull tab moves very easily, but still fun.

This is such an excellent purchase for anybody who wants to have some fun. I used this for my classroom (2nd grade) and the kids absolutely loved the activity and learning experience. Easy enough for the kids to use (with guidance). Would love if it included some of the variation covers that are available on his website, but can't mark it down for that.

My grandchildren LOVED this product! I like that this package included mentos candy.We used both Diet Coke and regular Coke to see if there was a difference.The kids liked putting different numbers of mentos in each bottle of Coke to see if each reaction was different.