Geometric Form is defined by its allegiance to mathematical construction.
Organic Form is defined by its simulation of natural substance.
Three-Dimensional is defined by an object or space having three coordinates: A width, a height, and a depth.
Depth is the third dimension that differentiates form from shape.
Form is a three-dimensional object that can be constructed by two or more shapes.
Volume is the amount of three-dimensional space a form occupies.