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.
1 These are the elements that make up the rock forming silicate minerals. 2  Volatiles are substances, dissolved in the magma, which don't go into minerals as the magma solidifies. 3  They are released in the form of liquids or gasses. 4  H 2 0 is by far the most abundant volatile in magmas. in the magma. 2  Magmas range from about 45% to 75% SiO2. 3  Fe, Mg and Al vary along with SiO2. 4  Magmas with about 50% SiO2, high amounts of Fe and Mg, and low Al are referred to as mafic in composition.