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Title: Great concept poor instructions
Review: I have a degree in physics and I struggled kelping my kids with this kit. It's a great kit from a physics education standpoint BUT there are some ridiculous inconsistencies. Most of the parts are durable plastic, but then there are some paper parts that are impossible to assemble as directed. The paper propeller required for the first experiment? Forget it. Instructions are poor for a design that will not work. I tossed that and adopted a plastic propeller from our K'NEX kit. Not optimal, but better than that stupid paper one. The instructions for the machine assembly are minimal at best. If you buy this kit, be prepared to wing it. And assemble it ahead of time so you know how to do it before you work with the kids.
