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

http://www.k12.dc.us/dcps/standards/science.htm  

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/VDOE/Superintendent/Sols/sciencesol.pdf