Printed educational publications, namely, study guides, workbooks, instructional booklets, study worksheets, note cards, and testing materials in the fields of science; Printed instructional and teaching materials in the field of science; Printed materials, namely, journals featuring a variety of educational and instructional journal questions on topics related to science; Printed note cards; Printed publications, namely, brochures, booklets, and teaching materials in the field of science; Pr...