an identifiable path created by a point moving in space. it is one-dimensional and can vary in width and length. often defined as edges of form . it can be horizontal, diagonal, vertical, straight, or curve, or thick or thin.
LINE
shape and form define object in space. it has two dimensions, height and width, and are usually defined by lines.
SHAPE
shape and form define object on space. it exist in three dimensions: height, width, and length.
FORM
describes the brightness or darkness of colors; a gradient is a series of it from darkest to lightest.
VALUE
in a work of art, it refers to a feeling or depth or three dimensions. also refer to the artist's used of the area within the picture.
SPACE
the surface quality of an object that we sense through touch: hard, soft, rough, smooth, hairy, leathery, sharp, etc.
TEXTURE
reflected light is organized on a (blank) wheel with three primary, three secondary, and six intermediate.