Of course, you want to the World's Lightest Solid...Frozen Smoke or as known by NASA as Silica Aerogel. Get some of this cool stuff and show it off to your friends.   What you will receive You will receive silica aerogel particles in about 2-ounce glass container as shown in the pictures. This is a perfect stock for many science lab experiments or science display. Great chemistry gift Amazing science gift Fun teaching tool Sweet Stocking stuffer, Christmas gift Gift for science teacher The facts Aerogel goes by many names blue smoke, solid air, frozen smoke but it's comely called the world’s lightest known solid. Aerogel is also the word's most effective thermal insulator, 39 times better than the best fiberglass insulation. NASA uses aerogel to trap space dust from comets aboard the Stardust spacecraft.   Beforehand the dust would vaporize on impact with solids and pass through gases, but they can now be trapped in aerogel's tightly woven Nanostructure. NASA also has used aerogel for thermal insulation in the Mars Rover and space suits. As well as in the US Navy seals suits to keep the divers safe and warm. aerogel is brittle but very strong under presser Aerogel is also extremely hydrophobic. This is high quality, cheap affordable Aerogel This is great for fun science experiments and Collections Safety Silica-based aerogels are not known to be toxic. Although they are an irritant to the eyes, skin, respiratory tract, Small silica particles can potentially cause silicosis when inhaled. So it's recommended to wear protective gear including respiratory protection, gloves, and safety goggles.

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• Worlds Lightest Solid, Extremely hydrophobic
• Nearly 40 times better insulator than fiberglass
• NASA has used aerogel on almost all missions
• This is great for fun science experiments and Collections