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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Batteries and foam storage case included
The iconic periodic table poster by author Theodore Gray is now available as an 8
5" x 11" classroom pack for students
8) QR code which links to rotating monthly Easter-eggs on a hidden GLG page
Doubles as a wallet ruler
Silicone Lens Mold for Gelatin Lenses (DIY) stem education Batteries and foam storage caseSilicone mold for making your own concave lens, convex lens and spherical lens out of Gelatin (or Agar) for light and optics experiments and science lessons. This durable silicone tray makes a perfect set of lenses with simple, plain gelatin concave, convex and semi spherical. Perform dozens of science experiments including refraction, magnification, measure the index of refraction of the gelatin you can even add sugar or coloring to explore even more