$24.955.0Sorry, this item is out of stock
What you get
Shoot an air vortex across the room and experiment with fluid dynamics!
Includes a step-by-step video tutorial link, illustrated blueprint instructions, all the materials, and a special-edition Tinker Zine magazine for more project fun!
This was super fun - so fun that it kept us both occupied and entertained to the point that I almost forgot to make lunch! I had previously said the drip irrigation one was the best, but this is by far better! :-D (partly because all those sprouts were moldy and sick, sadly). I do have one suggestion for you if you are getting this and haven't yet built it: cut only the very tips of the balloons and put them on the drum so that you have the knot to pull on - much easier for the kids if they have the knot to use as a handle! SUPER fun!