What Is Hip-Hop? A Music, History, Art, and Culture Lesson This lesson, re-posted on Education World with permission from Seattle radio station KEXP, was created by Tiffany Producer-KEXP Documentaries. The entire series of lesson plans appears here. Also see on EducationWorld: Hip-Hop Lesson: DJs and Turntablism
sal volatile. 1. an aromatic alcoholic solution of ammonium carbonate, the chief ingredient in smelling salts. Some say water was thrown into the flame, others that it was Spirits of sal volatile. He disengaged one of them presently, and felt in his pocket for the sal volatile.
Silica gel is nearly harmless, which is why you find it in food products. Silica, or silicon dioxide (SiO2), is the same material found in quartz. The gel form contains millions of tiny pores that can adsorb and hold moisture. Silica gel is essentially porous sand.ilica gel is nearly harmless, which is why you find it in food products. Silica, or silicon dioxide (SiO2), is the same material found in quartz. The gel form contains millions of tiny pores that can adsorb and hold moisture. Silica gel is essentially porous sand.