Described is an activity where students prepare high-quality fossil specimens to demonstrate the theory of evolution. The technique needed for fossil removal, the geologic and paleoclimatic setting, and the fish morphology are discussed. (KR)

An activity for use with the JASON project illustrating the factors which contribute to the instability of ships at sea is presented. The activities of the JASON project for the spring of 1990 are highlighted. Availability of materials and participating museums for the project are listed. (CW)

Presented is an activity in which the composition of margarine is analyzed. Materials and procedures are discussed. An extension activity on emulsions is suggested. Background information on the history of margarine is provided. (CW)

Describes a science program (Saturday Science) designed to provide learning experiences that are thematic and stress critical/creative thinking as well as development of science process skills for elementary, middle, and junior high students. (ZWH)

Presents topography activities. Includes a chart of topographic mapping symbols. (MKR)

Discussed is the teaching of physics with an emphasis on the learning of concepts before problem solving. Examples of this approach are provided. (CW)

Describes the implementation of the Scope Sequence and Coordination (SS&C) program in Iowa. A key factor in this reform is bridging middle and high school programs through developing, testing, and improving local frameworks to serve as a basis for a science experience that is developmentally appropriate, spaced, and ever-expanding. (JRH)

Described are five activities using crayons to demonstrate the rock cycle including weathering, erosion and sedimentation, and sedimentary, metamorphic, and igneous rock formation. Discussed are materials, procedures, and probable results. (CW)

Described is an activity in which students calculate constant velocity using a tape cassette player. The objectives, procedures, graphing directions, and formulas and values needed for the calculations are included. (KR)

Described is a practical examination that investigated the process skills of ninth grade students. Six hands-on test items are described. Included are the process test categories, the test room setup, and the major findings. (KR)

Described is a field trip in which eighth grade earth science students map the rock types located on the side of a mountain. Pretrip preparation, equipment, procedures, and posttrip analysis are discussed. (CW)

The use of the Accu-Weather database system in a junior high school classroom is described. Costs, equipment, and information received are discussed. Two software packages designed for use with meteorological data and Accu-Weather are highlighted. Availability information and a description of the services provided are included. (CW)

Defines wetlands and lists several types of wetland habitat. Describes explorations that can be done with secondary school students including the baby boom, a food pyramid, and microenvironments. Includes a classroom poster with text on the variety of wetlands. (CW)

Describes two software programs for the Apple II series and TRS-80 Models III and IV: (1) "Personal Energy Inventory" (grades 9-12, records and manages data, not considered user friendly); (2) "Energy Conservation" (grades 7-12, aids in converting and problem solving, uses drill and practice). (MVL)