Descriptor
| Resource Materials | 3 |
| Science Equipment | 2 |
| Animal Behavior | 1 |
| Biology | 1 |
| Ecology | 1 |
| Endangered Species | 1 |
| Energy | 1 |
| Environment | 1 |
| Fishes | 1 |
| Laboratory Experiments | 1 |
| Oceanography | 1 |
| More ▼ | |
Source
| Science Activities | 3 |
Author
| Jacobson, David | 3 |
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Peer reviewedJacobson, David – Science Activities, 1973
Describes the construction of a simple apparatus capable of converting solar energy into mechanical energy. Construction of the engine'' is inexpensive, and should stimulate student interest in the idea of producing power directly from the sun. (JR)
Descriptors: Energy, Laboratory Experiments, Physics, Resource Materials
Peer reviewedJacobson, David – Science Activities, 1972
Fish which have survived a long series of natural environmental changes for over 20,000 years are now becoming extinct because of man. Efforts are being made to reverse this trend. (DF)
Descriptors: Biology, Ecology, Endangered Species, Environment
Peer reviewedJacobson, David – Science Activities, 1972
The use of a trained sea lion to locate and attach a retrieval device to submerged instruments and test equipment is described. (CP)
Descriptors: Animal Behavior, Oceanography, Resource Materials, Science Equipment
