Line : 
Lines are marks made by a pointed tool: brush, pencil, pen, etc. Lines can vary in width, direction, curvature, length, or color.
Shape :
Shapes are formed wherever the ends of a continuous
line meet. Geometric shapes such as circles, triangles or squares have
perfect, uniform measurements and don't often appear in nature. Organic
shapes are associated with things from the natural world, like plants
and animals.
Color :
Color wheels show the primary colors, secondary colors,
and the tertiary (intermediate) colors. They also show the
relationships between complementary colors across from each other, such
as blue and orange; and analogous (similar or related) colors next to
each other such as yellow, green, and blue. Black and white may be
thought of as colors but, in fact, they are not. White light is the
presence of all color; black is the absence of reflected light and
therefore the absence of color.
Value :
Value,
or tone, refers to dark and light; the value scale refers to black and
white with all gradations of gray in between. Value contrasts help us
to see and understand a two-dimensional work of art.
Form :
Form describes objects that are three-dimensional, having length, width, and height.
Texture :
Texture can be rough, bumpy, slick, scratchy, smooth,
silky, soft, prickly--the list is endless. Texture refers to the
surface quality, both simulated and actual, of artwork.
Space :
Space refers
to distances or areas around, between, or within components of a
piece. Space can be positive (white or light) or negative (black or
dark), open or closed,shallow or deep,
and two-dimensional or three-dimensional. 
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