Below we present links to the science standards (Earth 
        & Space, Life Sciences, Physical Science, Nature of Science) developed 
        by the 
Mid-continent Research for Education 
        and Learning (McREL). They surveyed and consolidated many national- 
        and state-level efforts to identify what 
K-12 students should know 
        and be able to do in a variety of subject areas. They also consulted over 
        100 national- and state-level documents that address standards and benchmarks 
        in various subject domains. 
Click 
        here to see their original document. (Copyright 1997 - 2000; Used 
        with permission).