JW-+Fibers

Fibers in CSI: clothes jacket that one victim wore fibers out of the carpet

Vocabulary: Amorphous: Without a defined shape; fibers composed of a loose arrangement of polymers that are soft, elastic, and absorbing (ex: cotton) Crystalline: regularly shaped; fibers composed of polymers packed sideby side, which make it stiff and strong (ex: flax) Direct Transfer: the passing of evidence, such as a fiber, from victim to suspect or vice versa Fiber: the smallest indivisible unit of a textile, it must be at least 100 times longer than it is wide Mineral Fiber: a collection of mineral crystals formed into a recognizable pattern Monomer: a small molecule that may bond to other monomers to become a polymer. Natural Fiber: A fiber produced naturally and harvested from animal, plant, or mineral sources Polymer: a substance composed of long chains of repeating units Synthetic Fiber: a fiber made from a man-made substance such as plastic Secondary Transfer: the transfer of evidence such as fiber from a source (ex: carpet) to a person (suspect), and then to another person (victim) Textile: a flexible, flat material made by interlacing yarns (or threads) Yarn: fibers that have been spun together.