Chalk It is formed in the sea by sub-microscopic plankton, which fall to the sea floor and are then consolidated and compressed during diagenesis into chalk rock. Most people first encounter the word "chalk" in school where it refers to blackboard chalk, which was originally made of mineral chalk, since it readily crumbles and leaves particles that stick loosely to rough surfaces, allowing it to make writing that can be readily erased. Blackboard chalk manufacture now may utilize mineral chalk, other mineral sources of calcium carbonate, or the mineral gypsum (calcium sulfate). While gypsum-based blackboard chalk is the lowest cost to
That's What Little Girls Are Made Of "didn't quite fit the image that we were looking for" — later taking her revenge with an oversized garbage-bag costume in her groundbreaking 1997 video "The Rain (Supa Dupa Fly)." That's What Little Girls Are Made Of "That's What Little Girls Are Made Of" is the debut mainstream single from Raven-Symoné featuring rapper Missy Elliott (credited as her full name "Melissa Elliott"), taken from her debut studio album, "Here's to New Dreams". This is Symoné's highest chart appearance to date. The song was written and produced by Missy Elliott, who performs a verse of scat singing and Jamaican-style toasting, but