The Panda's Thumb reports the science standard rankings (and in order of score) as determined by the Fordham Foundation. (Iowa is missing because it does not have statewide science standards.)
Bear in mind these don't necessarily reflect the quality of science education in the separate states - they just represent the quality of the published science standards. Kansas' recent antievolution (and eventually antiscience) changes make it something of an anomaly - the .pdf file's analysis discusses the early tinkerings with the science standards, rather than the original draft (generally regarded as extremely good,) which was overturned by creationists, or the final slaughter against intelligence wrought by those very same creationists. Gotta love metaphysical science!
Congratulations California! May you destroy us all with your ridiculously well developed, accurate, and appropriate standards.
-The Rev. Schmitt.