Descriptor
Author
| Hershey, David R. | 4 |
Publication Type
| Guides - Classroom - Teacher | 4 |
| Journal Articles | 4 |
Education Level
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| Practitioners | 4 |
| Teachers | 4 |
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Peer reviewedHershey, David R. – American Biology Teacher, 1994
Describes historical accounts dating back to as early as 604-562 BC of the various uses of hydroponics. Throughout the article, diagrams and simple instructions are provided to aid in classroom use of hydroponics. (ZWH)
Descriptors: Plants (Botany), Science Activities, Science Education, Science Experiments
Peer reviewedHershey, David R. – Science Teacher, 1992
Describes an experiment to induce carbon dioxide deficiency to demonstrate its effects on plant growth. Suggests further studies to examine respiration by soil microbes and the effects of relative humidity, other gases, and air pollution on plant growth. (MDH)
Descriptors: Demonstrations (Educational), Plant Growth, Plants (Botany), Science Activities
Peer reviewedHershey, David R. – American Biology Teacher, 1993
Describes how lectures, laboratories, and role playing can be used to introduce students to the importance of water quality of water used for plant growth. (PR)
Descriptors: College Science, High Schools, Higher Education, Learning Activities
Peer reviewedHershey, David R. – Science Activities, 1992
Discusses traditional school demonstrations and experiments in hydrotropism. Explains that these experiments seem to "prove" hydrotropism, but yet most botanists reject hydrotropism. Teachers continue to teach the concept because it is logical and the experiments are simple. (PR)
Descriptors: Biology, Botany, Demonstrations (Educational), High Schools
