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A lesson about the special properties of glass, the process of glassmaking and the various types of glass.
Author: Horváthné Kunstár Andrea
glass, Glass manufacture, glassblowing, amorphous, obsidian, muranói üveg, glass tube, glass window, window glass, soda-lime glass, heat resistant glass, lead glass, coloured glass, bulletproof glass, safety glass, glasses, photochromic glass, mirror, glass-ceramic, quartz, sand, limestone, sodium carbonate, glass factory, lens, solid, liquid, state of matter, molten gass, melting point, Bunsen burner, capillary, space shuttle, chemistry, geography, history
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