A lipid panel is a blood test that measures fats and fatty substances used by your body. These fats ,called lipids, measure cholesterol, triglycerides, high-density lipoprotein ââgood cholesterol â- (HDL), and low-density lipoprotein- âbad cholesterolâ- (LDL). lipid panel is a blood test that measures fats and fatty substances used by your body. These fats ,called lipids, measure cholesterol, triglycerides, high-density lipoprotein ââgood cholesterol â- (HDL), and low-density lipoprotein- âbad cholesterolâ- (LDL).
Blackboards, also known as chalkboards, were originally made from sheets of slate, a fine grained metamorphic rock derived from clay.lackboards, also known as chalkboards, were originally made from sheets of slate, a fine grained metamorphic rock derived from clay.
(April 2008). A quadruple blackboard at the Helsinki University of Technology. A blackboard (UK English) or chalkboard (US English; also blackboard) is a reusable writing surface on which text or drawings are made with sticks of calcium sulfate or calcium carbonate, known, when used for this purpose, as chalk.ticks of processed chalk are produced especially for use with blackboards in white and also in various colours. These are often made not from chalk rock but from calcium sulfate in its dihydrate form, CaSO 4 Â·2H 2 O (gypsum). Chalk sticks containing calcium carbonate typically contain 40-60% of CaCO 3 (calcite).