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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

Showing all 12 results
Some Proposals for Practical Work with Dried Yeasts.
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1978
Explains some of the ways in which dried yeast has been used in sixth-form work to illustrate some points and principles relevant to a high school biology course. (Author/GA)
Descriptors: Biology, Culturing Techniques, Experiments, Instruction
Ethene and the Expansion of Immature Fruits
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1976
Descriptors: Biology, College Science, Higher Education, Instructional Materials
Some Applications of Colorimeters and Light Meters in Biology Teaching
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1975
Describes differences in the construction of a colorimeter and a photometer. Gives examples of ways in which light-measuring instruments can be used by biologists. These examples can be used either as class experiments or as individual projects. (GS)
Descriptors: Biology, College Science, Higher Education, Instructional Materials
Leaf Skeletons: Preparation and Uses
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1975
Describes a chemical method for preparing leaf skeletons for scientific or artistic work. (LS)
Descriptors: Biology, Botany, College Science, Educational Media
Determination of CO2 Production During Fermentation of Sugars by Yeast
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1975
Describes the construction and use of a simplified apparatus for fermentation studies. (LS)
Descriptors: Biology, College Science, Higher Education, Instructional Materials
A Colorimetric Method for Determining Rates of Fermentation by Baker's Yeast (Saccharomyces cerevisiae)
Peer reviewed Peer reviewed
Freeland, P. W.; Hills, W. Hyde – School Science Review, 1975
Descriptors: Biology, College Science, Higher Education, Instructional Materials
Some Applications of Reagent Strips in Soil Experiments
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1975
Descriptors: Earth Science, Laboratory Experiments, Science Activities, Science Education
Some Applications of Agar-Gel Diffusion Techniques in the School Laboratory
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1974
Descriptors: Biochemistry, Biology, Chemical Analysis, College Science
A Display Unit for Petri Dishes
Peer reviewed Peer reviewed
Freeland, P. W.; Whitmey, A. – School Science Review, 1974
Descriptors: Biology, Equipment, Laboratory Equipment, Microbiology
Environmental Effects on the Growth and Regeneration of Excised Mustard Cotyledons
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1974
Descriptors: Biology, Botany, Plant Growth, Plant Science
Regeneration in Root Segments of Dandelion: Some Suggestions for Experimental Work
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1974
Descriptors: Biology, Laboratory Experiments, Laboratory Procedures, Plant Growth
Some Experiments With Agar-Grown Seedlings
Peer reviewed Peer reviewed
Freeland, P. W. – School Science Review, 1973
Two percent agar gel is reported as a better medium for germination and growth studies. Students can be encouraged to undertake many simple experiments and make precise observations by using this medium. (PS)
Descriptors: Biology, Elementary School Science, Instructional Materials, Laboratory Techniques