Which element of art is 3-dimensional (3D)?

This principle of design is the path the viewer’s eye takes through the work of art, often to focal areas. It can be directed along lines, edges, shape, and color within the work of art. 

The focal point of the design which captures the viewer's attention.

This principle of design make the work of art seem active. The replication of elements of design creates unity within the work of art. 

A pure color is a:

When mixing a primary and a secondary color together, you get a_____________

What are these called?

What are the primary colors?