Washington, D.C. elementary school science standards of learning:

http://dcps.dc.gov/DCPS/In+the+Classroom/What+Students+Are+Learning/What+your+child+is+learning+and+expected+to+know+in+grades+K-12#0

State of Maryland elementary school science standards of learning:

 http://mdk12.org/assessments/vsc/index.html

State of Virginia elementary school standards of learning 

http://www.doe.virginia.gov/testing/sol/standards_docs/science/index.shtml