Chromatography - A method of separating s mixture of compounds by the use of a porous material. Coordinate System - A system used to identify location on a graph or grid. Latitude and longitude is an example of a coordinate system. Diastolic - A measurement of the amount of pressure on the walls of blood vessels when the heart is at rest. Latitude - Lines on a map or globe that represent an angular distance north or south of the Earths equator.
Longitude is expressed in degrees of time.
Parallel - Two lines running side by side at an equal distance apart. Railroad tracks run parallel to each other. Prism - A piece of transparent material that separates the colors of sunlight into a rainbow or spectrum. Propulsion - The act of moving an object and maintaining its motion. Pulse Rate - The number of times a heart beats per minute in a person's body.