-  
    
    Page from NIST (National 
      Institute of Standards and Technology) in Washington, D.C. 
-  
    Prefixes used in SI unitsPage from NIST in Washington, 
      D.C.
-  
    
    Page from NIST in Washington, 
      D.C. 
  -  
    Equivalences 
      in measures between SI and English
-  
    
  
-  
    
  
-  
    
  
-  
    Here is a very nice Periodic 
      Table that contains lots of physical properties and chemical properties 
      for the elements.
-  
    Here are some tables that will appear as Useful Information on examinations 
      this semester: