Science and Mathematics Education Commons^™

Book Review: Fragile Giants: A Natural History Of The Loess Hills, Kenneth D. Carlander

Journal of the Iowa Academy of Science: JIAS

The Loess Hills, which are a special feature of the eastern bank of the Missouri River in Iowa and northern Missouri, have been cited by Dean Roosa, Iowa's State Ecologist, as a "world treasure and ... our best-kept secret." These Hills are mounds of finely ground soil, "glacial flour," deposited by dust storms after the glaciers receded 31 to 12 thousand years ago. Loess is rather widely distributed in Iowa, but the extensive deposits (often over 200 feet deep) on and against the eastern wall of the valley left a rolling, wave-like, terrain which on erosion leaves vertical banks of …

Population Estimates And Geographic Distribution Of The Yellow Mud Turtle (Kinosternon Flavescens) In Iowa, James L. Christiansen, Benny J. Gallaway, John W. Bickham

Journal of the Iowa Academy of Science: JIAS

The yellow mud turtle (Kinosternon flavescens) is an endangered species in Iowa known from six localities in the stare. The only large population is located on a private preserve on Big Sand Mound in Muscatine and Louisa Countries and is estimated to consist of 2,000 to 3,000 individuals. Following the removal of predators in 1979, density estimates have tripled as estimated by the Sequential Bayes Algorithm of mark-recapture data. Assuming the Big Sand Mound population was nor severely damaged by the drought of 1988, it is judged sufficiently large to serve as a source to enrich certain of Iowa's other …

Special Issue Photo: Richard V. Bovbjerg, Director Of The Iowa Lakeside Laboratory 1963-1989

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

The Cladocera Of Lake West Okoboji, Iowa - Revisited, Kenneth L. Lang

Journal of the Iowa Academy of Science: JIAS

Seven stations, established in 1968 to sample Cladocera, were sampled again, using the same methods, in 1988. Seven species, all of them in low abundance, are new records for Lake West Okoboji. In 1988, there was little difference 1) in the ranking of the stations relative to abundance of cladocerans, 2) the distribution and abundance of the species by habitat-type, 3) the seasonality of the predominant species in the specific habitats, 4) the temporal patterns of the number of species and total cladoceran abundance in the specific habitats, compared to 1968. On the average there were more species but lower …

Eighty Years Of Research At Iowa Lakeside Laboratory: A Bibliography, Debby Zieglowsky Baker

Journal of the Iowa Academy of Science: JIAS

Over 400 scientific reports and theses have resulted from work conducted at Iowa Lakeside Laboratory since it was founded in 1909. This bibliography updates Ulmer's 1962 bibliography and gathers some of the hundreds of theses written by students at the Lab.

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

The Iowa Science Teachers Fall Conference, 1990, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Map ... 3
Speakers ... 5
Session I ... 8
Session II ... 8
Session III ... 11
Application for Membership ... Centerfold
Registration Forms ... Centerfold
Luncheon Information ... 23
Session IV ... 23
Session V ... 26

Anatomical Characterization Of Western Corn Rootworm Damage In Adventitious Roots Of Maize, Walter E. Riedell, Alice Y. Kim

Journal of the Iowa Academy of Science: JIAS

Corn rootworms are one of the most economically damaging insect pests of maize, yet little is known about the feeding behavior of the larvae. This study was conducted to determine which tissues of the adventitious roots of maize are damaged by western corn rootworm (Diabrotica virgifera virgifera LeConte) larval feeding. Root axes (10 cm long) were removed from the fifth node of greenhouse-grown maize plants. Root segments 2 cm long, excised 4 or 6 cm from the root tip, were infested with second or third stage larvae, respectively, (0, 1, 3, or 6 larvae per segment) for a period of …

Science Career Day: A Recruitment Strategy For High School Students, Sherman Lundy

Iowa Science Teachers Journal

Many students do not picture themselves in science-related careers primarily because they are not informed about the opportunities available and the secondary and post-secondary education required for those jobs. To most students, people in science careers include physicians, nurses, scientists (whatever that means), engineers and possibly chemists. A few students are aware of additional career choices in geology and astronomy. The science careers most talked about are related to nature and wildlife, but students are not certain what is involved in these occupations. Vast numbers of jobs are, or soon will be, available in the fields of science and technology, …

Feather Spectrum, Thomas Campbell, D. Louis Finsand

Iowa Science Teachers Journal

The activity explained in this article was developed at the Harvard-Smithsonian Center for Astrophysics by the authors for SPICA Activities. SPICA is the acronym for the Support Program for Instructional Competency in Astronomy and is funded by the National Science Foundation. Thirty-three astronomy and science educators were selected from throughout the United States to be involved in the three-week SPICA astronomy education workshop during August 1989.

Ag-Drainage Wells And Groundwater Quality, Robert D. Libra

Iowa Science Teachers Journal

Iowa agriculture benefits from two important natural resources, the rich soils that blanket the landscape and sufficient precipitation, in most years, to produce large crop yields. While precipitation is essential to farmers, many of Iowa's soils, especially in the northcentral part of the state, are poorly drained and at times contain excess water that can hinder field operations or ruin crops. In these areas, farm fields are often artificially drained by buried tile lines leading to ditches or to streams. Another, but less common, method is the agricultural drainage well, a shaft which funnels excess water directly underground. The upper …

Astronomy Bulletin - The 1990 Summer Sky, P. Steven Leiker

Iowa Science Teachers Journal

No abstract provided.

Science Notes - New Ists Officers Elected, Stephanie A. Althof

Iowa Science Teachers Journal

The Iowa Science Teachers Section recently held elections for the offices of president-elect and secretary. Jim Kubichek and Sharon J. Fisher were selected for these respective positions in a voting process that included over 200 ISTS members.

Science Notes - American Geological Institute Offers Careers Brochure, Stephanie A. Althof

Iowa Science Teachers Journal

The American Geological Institute (in cooperation with the American Association of Petroleum Geologists and the Geological Society of America) is offering its brochure titled "Careers in the Geosciences" free of charge to interested educators.

Science Notes - United Nations Offers Environmental Education Publication, Stephanie A. Althof

Iowa Science Teachers Journal

The United Nations' Educational, Scientific and Cultural Organization is currently producing a newsletter focusing on environmental education.

Science Notes - National Institute Of General Medical Sciences Offers The Structures Of Life, Stephanie A. Althof

Iowa Science Teachers Journal

The National Institute of General Medical Sciences has made available its publication titled The Structures of Life: Discovering the Molecular Shapes that Determine Health or Disease.

Editor's Corner - Quality Teachers = Quality Pupils, James J. Hungerford

Iowa Science Teachers Journal

Effective teaching has always been a difficult task. But a hard job done well has always been satisfying regardless of one's management style. Management and evaluation styles may change, but effective teaching has always been proven by having all of the students doing high-quality work.

Science Notes Policy

Iowa Science Teachers Journal

No abstract provided.

Recycling Paper To Save Landfills And Trees, William H. Gilbert

Iowa Science Teachers Journal

While some groups want to save tropical rain forests or marshy wetlands, other conservation-minded groups are interested in judiciously using sanitary landfills, or at least lengthening their lifetime by recycling paper (Hovelson, 1989). The Rolling Hills Audubon Society (RHAS), centered in Indianola (Warren County), sponsored two newspaper collections during 1989 in hopes of raising funds and reducing waste paper going to the South Central Iowa Sanitary Landfill located east of Winterset and south of Highway 92 in Madison County.

Women And Minorities In Technical Courses In Iowa, Myrna Whigham

Iowa Science Teachers Journal

Recent national reports indicate that math and science education is in a crisis in the United States (Changing America, 1988 and Women and Minorities in Science and Engineering, 1988). Concern has been expressed by many national groups that we must attract and keep more young people in the pipeline to meet future needs for scientists and engineers. Because the need for scientists is projected to increase by 45 percent, for engineers 32 percent and for technicians 36 percent, but the population of 18-24 year olds entering the labor force is expected to decline, the U.S. must attract more women and …

Science Notes - Governor's Conference On Science, Mathematics And Technology Education

Iowa Science Teachers Journal

The Iowa Alliance for Science will sponsor the Fourth Annual Governor's Conference on Science, Mathematics and Technology Education on February 11, 1991, at the Des Moines Marriott Hotel. The purpose of the conference is to assist individuals in improving education by using community resources through public-private partnerships.

Science Notes - Could Your Computer Be A Safety Hazard?

Iowa Science Teachers Journal

The July 1990 issue of Mac World discussed the issue of display terminal safety. The evidence that display monitors emit significant radiation which may be strong enough to be a health hazard has been mounting since the early 1980's. After conducting their own tests, the publishers of MacWorld concluded that extremely low-frequency magnetic field emissions from monitors are worrisome.

Science Notes - Contribute To Chemsource

Iowa Science Teachers Journal

ChemSource is a new project designed to provide detailed support for inexperienced secondary school chemistry teachers (pre-service teachers or inservice teachers in their first three years of chemistry teaching). The two major components that will be developed, piloted, revised, tested and disseminated over the next three years are SourceBook and SourceView. The project is funded by the National Science Foundation and originated in the Society Committee on Education of the American Chemical Society. Its principal investigator is Mary Virginia Orna.

Science Notes - Acs Offers Minigrants For High School Teachers, Stephanie A. Althof

Iowa Science Teachers Journal

The American Chemical Society (ACS) is again sponsoring its Minigrant program, offering high school teachers up to $1000 in materials development funds. Applications for the 1991-92 school year are now available and the application deadline is March 15, 1991.

Science Notes - Being A Pet Parent, Stephanie A. Althof

Iowa Science Teachers Journal

Lifetime Learning Systems, Inc., offers a unique packet designed to teach students the responsibilities involved in owning a pet. Designed for students in grades 4-6, Being a Pet Parent allows students to explore the similarities between their parents' responsibility to them and the responsibilities they would have if they were to have a pet.

Science Notes - Free Booklets On Groundwater And Recycling, Gail George

Iowa Science Teachers Journal

The Iowa Department of Natural Resources is offering booklets on groundwater and recycling at no cost to Iowa educators.

Science Notes - Water Education Packet Offered, Stephanie A. Althof

Iowa Science Teachers Journal

The American Water Works is offering its water education curriculum packet free-of-charge to interested educators.

Science Notes - Scientific American Sponsors Series On Pbs, Stephanie A. Althof

Iowa Science Teachers Journal

Scientific American magazine recently began production of a new five-part science-related series for public television. "Scientific American Frontiers," underwritten by GTE corporation, airs on PBS once a month from October through February. Exact dates vary each month.

Science Notes - Art Of Science Competition Suspended For 1991, Stephanie A. Althof

Iowa Science Teachers Journal

The New York Academy of Science recently announced a suspension of its annual Art of Science Competition this year. The decision was a result of budget cutbacks in the National Science Foundation (a major supporter of the program) and an unexpected phasing-out of a multi-year grant from Dow Chemical U.S.A. (the competition's major corporate sponsor since 1988).

Iowa Science Teachers Section 1990-91 Regional Directors

Iowa Science Teachers Journal

No abstract provided.