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Science Activities | 7 |
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Hoehn, Robert G. | 7 |
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Hoehn, Robert G. – Science Activities, 1973
Descriptors: Earth Science, Geology, Instruction, Laboratory Experiments

Hoehn, Robert G. – Science Activities, 1977
Describes classroom science demonstrations and experiments that simulate the process of fossil formation. Lists materials, procedures and suggestions for successful activities. Includes ten student activities (coral fossils, leaf fossils, leaf scars, carbonization, etc.). Describes a fossil game in which students work in pairs. (CS)
Descriptors: Biology, Earth Science, Geology, Instructional Materials

Hoehn, Robert G. – Science Activities, 1978
Describes methods of making fossil models in the classroom. Step-by-step directions, as well as discussion questions, are given. A film and filmstrip is included. (MA)
Descriptors: Curriculum Enrichment, Earth Science, Elementary Secondary Education, Geology

Hoehn, Robert G. – Science Activities, 1978
Activities for use in a field trip to an ancient mud flow are provided. Photographs illustrate the techniques described. (CP)
Descriptors: Field Trips, Geology, Instructional Materials, Paleontology

Hoehn, Robert G. – Science Activities, 1972
A mixture of dough, using pancake flour, is used to represent the molten state of the earth billions of years ago. A simple experiment is designed to demonstrate that the earth's internal forces result from its unequal heating and cooling. Procedures are given to test this model with four theoretical hypotheses. (DF)
Descriptors: Audiovisual Aids, Earth Science, Educational Media, Geology

Hoehn, Robert G. – Science Activities, 1978
Describes procedures that can help students to make model geodes from eggshells, copper sulfate, and other crystalforming substances. (HM)
Descriptors: Earth Science, Elementary Secondary Education, Geology, Instruction

Hoehn, Robert G. – Science Activities, 1978
Provides hints for teaching a unit on fossils, with special emphasis on the use of field trips. Suggests several points for a successful field experience and describes how the author used local fossil sites to involve students in field trips. (MA)
Descriptors: Earth Science, Field Instruction, Field Trips, Geology