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Product summaryCustomer reviews
Description
At any level, students in science must understand the various units of measurement and how to use them; particularly with respect to magnitude and computation. In this kit students perform 12 exercises covering measuring common objects; utilizing information derived from graphs; determining the Earth?s radius, diameter and circumference; and...
Average rating
(5)
Nice but I wish I would have ordered the AR-2
The Model T seems functional enough, but the smaller motor on the Model T concerns me. I bought in a hurry and should... Read full review · www.amazon.com · Guido · 7/13/2007
As a kid I had a pretty solid rock tumbler by Skilcraft. That was 30 years ago. Ten years ago I got one for my step... Read full review · www.amazon.com · Jim · 9/30/2007
I bought another rock tumbler. It was all plastic and the drive to the barrel was a direct contact wheel against a... Read full review · www.amazon.com · A. Thomas · 1/5/2007
OK, so I didn't just buy this one. I've had mine for 25 years now, and it's still rolling. Same model and everything!... Read full review · www.amazon.com · Zen Tofu Stud Rascal · 1/13/2008
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