The defunct 1981 Arkansas Act used the following definition: (a) "Creation-science" means the scientific evidences for creation and inferences from those scientific evidences.  Creation-science includes the scientific evidences and related inferences that indicate (1) Sudden creation of the universe, energy, and life from nothing; (2) The insufficiency of mutation and natural selection in bringing about development of all living kinds from a single organism; (3) Changes only within fixed limits of originally created kinds of plants and animals; (4) Separate ancestry for man and apes; (5) Explanation of the earth's geology by catastrophism, including the occurrence of a worldwide flood; and (6) A relatively recent inception of the earth and living kinds.

Let's look at the six points.  (1) Sudden creation of the universe does have support among main line cosmologists.  The Big Bang "out of nothing" can be inferred from a rational evaluation of data and evidence.  (2) The "insufficiency" of mutation and natural selection in bringing about development of all living kinds from a single organism is an assertion that ignores environmental impact, which if taken all together may be sufficient.  (3) Changes only within fixed limits ignores numerous transitional life forms that have been found in the fossil record and are considered to be intermediates.  A class of animals called synapsids, for example, are intermediates between reptiles and mammals.  (4) Separate ancestry for man and apes fails to account for genetic evidence to the contrary.  (5) No evidence for a recent, worldwide flood has been found to date. The mechanics of plate tectonics and continental drift require amounts of time far exceeding that allowed by young-earth theory.  (6) A recent inception of the earth and its life has no foundation in science.

Although there are some bright spots early in the definition, a young earth and sequencing of the fossil record by a worldwide flood are essential elements of creation science that cannot be pared away.

The contention that the world is young is totally bereft of earthly evidence.  Not a shred of credible data from nature has been uncovered yet to support young-earth claims.  No radioactive rock has yet been discovered containing so small an amount of decay element that it could be dated to such a young age.  Not one fossil bone has ever been found in Precambrian sedimentary rock.  No dinosaur remains have been found in conjunction with the brachiopods and trilobites of the Cambrian explosion.  No human bones have been found in the same layer with dinosaur bones.  A world-wide flood would have homogenized all animal bones, it would not have layered them.