16 A line of educational kits sold as a unit for use in conducting scientific experiments and demonstrating scientific principles consisting primarily of printed instructional, educational, and teaching materials and educational publications, namely, training and resource manuals and guides in the field of science education, and also containing plastic containers for laboratory use, trays and utensils for laboratory use, laboratory bottles and closures, seals and stoppers for use therewith, chemicals for use in industry and science, chemical preparations for scientific purposes, bacteria and bacteria cultures not for medical or veterinary purposes and not for use as dietetic substances, laboratory animals, plant seeds; Printed instructional, educational, and teaching materials in the fields of education and science; educational publications, namely, training and resource manuals and guides in the field of science education