Contour Lines- Line's that describe the shape of an object and the interior design
Geometric Shapes- Circles, squares, rectangles, and triangles. We see them in architecture and manufactured items.
Form- - a two-dimensional shape becomes three-dimensional it is no longer called a shape but a form. Shading a circle (2-D) can turn it into a sphere (3-D).
Value- the range of lightness and darkness within a picture. Value is created by a light source that shines on an object creating highlights and shadows.
Color- the property of objects that, depending on the light they reflect, is perceived as red,blue, yellow or other hues.
Texture- surface quality. It is the degree of roughness or smoothness in objects
Space- an illusion created in a 2-dimensional work of art. Lines and shapes are organized to help a viewer see depth.