WCAS – Washington Comprehensive Assessment of Science WCAS – Washington Comprehensive Assessment of Science Office of Superintendent of Public Instruction Office of Superintendent of Public Instruction Science Assessment Office of Superintendent of Public Instruction http://www.k12.wa.us/Science/Assessments.aspx Office of Superintendent of Public Instruction Office of Superintendent of Public Instruction Office of Superintendent of Public Instruction OSPI WCAS Office of Superintendent of Public Instruction WCAS – Washington Comprehensive Assessment of Science Washington Comprehensive Assessment of Science