This publication is intended to be an aid for secondary school science teachers in providing some additional student-oriented activities to enrich the earth science program. These activities have been classroom tested by teachers and have been considered by these teachers to be educationally successful. This publication is a product of the Earth Science Communication Program of the state of Virginia which was funded by the National Institute of Education. The activities introduced cover four areas: (1) astronomy; (2) geology; (3) meteorology; and (4) oceanography. An introductory activity about earth science and society, and suggestions for developing charts are also presented. All the activities are presented in the same way including the purpose, materials, pre-lab activities, procedures and conclusions. Some activities also include charts and/or tables. (HM)