NotesFAQContact Us
Search Tips
Did you mean eroded?
Showing all 8 results Save | Export
Peer reviewed Peer reviewed
Hampton, Carolyn H.; Hampton, Carol D. – Science and Children, 1978
Elodea is an attractive plant, well suited for classroom aquaria. This article describes the collection, care, and maintenance of this plant. (BB)
Descriptors: Elementary Education, Elementary School Science, Plant Science, Science Activities
Rauser, W. E. – Amer Biol Teacher, 1970
Describes simple apparatus and procedures for demonstrating photosynthic rates when Elodea plants are illuminated simultaneous with long and short wavelength light. (AL)
Descriptors: Biology, Botany, College Science, Instruction
Peer reviewed Peer reviewed
Direct linkDirect link
Lankford, Deanna; Friedrichsen, Patricia – American Biology Teacher, 2012
Diffusion and osmosis are important biological concepts that students often struggle to understand. These are important concepts because they are the basis for many complex biological processes, such as photosynthesis and cellular respiration. We examine a wide variety of representations used by experienced teachers to teach diffusion and osmosis.…
Descriptors: Biology, Science Instruction, Scientific Concepts, Sequential Approach
Peer reviewed Peer reviewed
Ekstrom, James V. – Science Teacher, 2000
Presents an activity in which students use microscopes and digital images to examine Elodea, a fresh water plant, before and after the process of plasmolysis, identify plant cellular structures before and after plasmolysis, and calculate the size of the plant's vacuole. (ASK)
Descriptors: Biology, Botany, Cytology, Microscopes
Peer reviewed Peer reviewed
Holt, S. – School Science Review, 1972
Short articles describing a model of protein synthesis, a simple constant temperature incubator, techniques for determining the age structure of populations from qualitative characters, an experimental demonstration of proteolytic enzyme action, and apparatus for demonstrating hydrotrophic response of roots and for measuring photosynthetic rate of…
Descriptors: Biochemistry, Biology, Demonstrations (Educational), Ecology
Peer reviewed Peer reviewed
Tatina, 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 reviewed Peer reviewed
Zurcher, Sandra L. – Science and Children, 1991
Presents lessons to stimulate children's interest in science and develop communication skills by having students simulate the locomotion of an ameba, a paramecium, and an Euglena, and the cyclosis in the pondweed Elodea. Students practice communication skills by demonstrating their organism to the remainder of the class. (MDH)
Descriptors: Animal Behavior, Biology, Communication Skills, Cytology
Barrett, Katharine; Willard, Carolyn – 1998
This book, for grades 2-6, is designed to provide students with a highly motivating and unique opportunity to investigate an aquatic habitat. Students set up, observe, study, and reflect upon their own "desktop ponds." Accessible plants and small animals used in these activities include Elodea, Tubifex worms, snails, mosquito larvae, and fish.…
Descriptors: Animals, Aquariums, Ecological Factors, Ecology