Second graders study "relationships" in art and they start with COLOR. They already know the basics - the rainbow, but they expand on this knowledge to include tertiary colors like red-orange and blue-violet making an even prettier rainbow! They know how to make the whole color wheel using only primary colors (red, yellow, and blue).
And, they made these gems using their mixing skills. To see them all, check out the gallery in the lower school administration building by the gym!