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| Biology | 4 |
| Science Instruction | 4 |
| Secondary Education | 4 |
| Science Experiments | 3 |
| Higher Education | 2 |
| Laboratory Procedures | 2 |
| Science Activities | 2 |
| Chemical Reactions | 1 |
| College Science | 1 |
| Food | 1 |
| Hands on Science | 1 |
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| American Biology Teacher | 4 |
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| Tatina, Robert | 4 |
| Hartley, Tamela | 1 |
| Maier, Sarah | 1 |
| Mansor, Marcy | 1 |
| Thomas, Danita | 1 |
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| Journal Articles | 4 |
| Guides - Classroom - Teacher | 3 |
| Reports - Descriptive | 1 |
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Peer reviewedTatina, Robert – American Biology Teacher, 2002
Describes an automatic pipette washer that is functional, inexpensive, and easy to construct from locally available parts. (KHR)
Descriptors: Biology, Instructional Design, Science Equipment, Science Experiments
Peer reviewedTatina, Robert – American Biology Teacher, 1998
Describes two simple laboratory exercises that allow students to test hypotheses concerning the requirement of cell energy for osmosis. The first exercise involves osmotically-caused changes in the length of potato tubers and requires detailed quantitative observations. The second exercise involves osmotically-caused changes in turgor of Elodea…
Descriptors: Biology, Hands on Science, Hypothesis Testing, Laboratory Procedures
Peer reviewedTatina, Robert; Mansor, Marcy; Maier, Sarah – American Biology Teacher, 2001
Presents a student laboratory investigation that tests hypotheses about the uptake of phosphate ions by carrots and yeast. (ASK)
Descriptors: Biology, Chemical Reactions, College Science, Food
Peer reviewedTatina, Robert; Hartley, Tamela; Thomas, Danita – American Biology Teacher, 1999
Describes the construction and use of an inexpensive, portable photometer designed specifically for estimating population sizes in yeast cultures. Suggests activities for use with the photometer. (WRM)
Descriptors: Biology, Higher Education, Laboratory Equipment, Laboratory Experiments
