(ËlÉk tÉrn) n. 1. a reading desk in a church from which the Bible lessons are read during the service. 2. a stand with a slanted top, used to hold a book, speech, etc., at the proper height for a standing reader or speaker.
How a Diamond is Formed. In order for diamond to form there must be an available source of carbon and relatively narrow ranges of temperates and pressures must align. This happens around 100 miles below the crust. Once crystalized the diamonds must be rapidly transported to the surface without undergoing substantial change.
This means that the bonds such as hydrogen bonds and polar attraction between the individual molecules of a substance must be broken so that the molecules can flow past each other in a liquid state. Diamonds have a very high melting point.This is because diamond is a macromolecule. Diamond is made up of single carbon bonds, with four carbons attached to each carbon molecule.his means that the bonds such as hydrogen bonds and polar attraction between the individual molecules of a substance must be broken so that the molecules can flow past each other in a liquid state. Diamonds have a very high melting point.