Watch the glass spheres as they rise or sink when the temperature causes the density of the liquid to change. Created 400 years ago by Galileo, this beautiful glass reproduction contains seven colorful spheres, allowing students to read the temperature from 68o
F to 80o
F. 43 cm (17") high. Five Year Warranty.
Download the MSDS of this product.
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Aug 16, 2015 | By TM of Loganville, GA United States
Dec 27, 2014 | By John Q Smith of Willowick, OH United States
Sep 30, 2014 | By Jennifer Bernabo of Plano, TX United States
Starts great student discussions!
Oct 11, 2012 | By Karrie of Waukesha, WI United States
May 16, 2012 | By Elizabeth S. of Mt. Prospect, IL United States