National Geographic Kids: Coral Reefs contains jargon

a static shape has a fixed relationship between all of its vertexes. a dynamic shape can vary the position of at least one of its vertexes in relation to the others.

explanation:

“blowin’ in the wind” was composed by bob dylan. most of bob dylan’s first songs trafficked with particular circumstances or people. at the newport folk festival, bob dylan was supported by the paul butterfield blues band. woody guthrie composed “this land is your land” as a response to irving berlin’s “god bless america.”like a rolling stone” held the long-drawn 45 rpm single that became always been taped. protest tunes normally include mild themes. bob dylan’s earliest collection to incorporate electronic melodies was returning it all back home. pete seeger never contracted with a dominant record name as a solo musician. most of the byrds’ initial records were covers of folk melodies.

relief sculpture - images are set against a flat background.

a coin is a good example: the inscription, the date, and the figure are slightly raised above a flat surface. the ancient egyptians sometimes carved figures into a flat surface.  

pro: they take significantly less time to make and do not require as much tools or skills as free-standing

cons: not nearly as realistic, as it is not fully 3-d, and does not have the details that a free-standing one does.

freestanding sculptures (also called  carved in the round) are not attached to any  background.   they are 3-dimensional  and fully rendered.