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Articles 13771 - 13800 of 19307

Full-Text Articles in Science and Mathematics Education

Iowanet Update, Jack Gerlovich, Paul Joslin Jan 1993

Iowanet Update, Jack Gerlovich, Paul Joslin

Iowa Science Teachers Journal

"How come space is so dark if it is occupied by trillions of stars that are all so bright like our Sun?" asked a Des Moines second grader. His question was answered by three very different people: a physics teacher, a high school physics student and a retired attorney. All gave slightly different answers; the student received a rich and immediate response to a question that could not be answered with local school resources. This student's opportunity was made possible by his school's participation in the IOWANET computer conferencing network. The following article will help teachers understand and appreciate the …


Science Notes - Inserting A Wire Through A Cork Or Rubber Stopper Jan 1993

Science Notes - Inserting A Wire Through A Cork Or Rubber Stopper

Iowa Science Teachers Journal

Christy Cargille of the Institute for Chemical Education (ICE) Headquarters staff has found a convenient way to insert a wire through a rubber cork or stopper. The method, illustrated below, requires only a hypodermic needle.


Science Notes - Ice Offers Science Workshops For Teachers Jan 1993

Science Notes - Ice Offers Science Workshops For Teachers

Iowa Science Teachers Journal

Teachers and supervisors from kindergarten through college are invited to take part in programs that will be offered by the Institute for Chemical Education (ICE).


Science Notes - Toyota/Nsta Tapestry Grants, Jonna M. Higgins Jan 1993

Science Notes - Toyota/Nsta Tapestry Grants, Jonna M. Higgins

Iowa Science Teachers Journal

Grants allowing teachers to implement innovative environmental and physical science projects are being offered by TAPESTRY (Toyota's Appreciation Program for Excellence to Science Teachers Reaching Youth).


Science Notes - Duracell-Nsta Scholarship Competition, Jonna M. Higgins Jan 1993

Science Notes - Duracell-Nsta Scholarship Competition, Jonna M. Higgins

Iowa Science Teachers Journal

Students wishing to compete for $30,000 in scholarships may enter the 1993 Duracell NSTA Scholarship Competition. Sponsored by Duracell U.S.A. and administered by the National Science Teachers Association, the competition offers students in grades nine through twelve have an opportunity to win up to $10,000 in college scholarships.


Science Notes - "Excellence In Polymer Education" Award Jan 1993

Science Notes - "Excellence In Polymer Education" Award

Iowa Science Teachers Journal

To recognize the efforts of secondary and junior high school chemistry teachers who help students meet the challenges and responsibilities of living in a technological age, the Polymer Education Committee (POLYED) of the American Chemical Society sponsors the “Award for Excellence in Polymer Education by a Junior High or High School Chemistry Teacher."


Science Notes - Coalition Distributes Eclipse Safety Information Jan 1993

Science Notes - Coalition Distributes Eclipse Safety Information

Iowa Science Teachers Journal

On May 10, 1994, North America will experience an annular eclipse of the sun. Because looking directly at the sun at any time can cause severe eye damage, including blindness, a coalition of ten eye care, safety and astronomy organizations has been formed to tell people everywhere how to avoid injuring their eyes during the eclipse.


Science Notes - American Astronomical Society Teacher Resource Agents Jan 1993

Science Notes - American Astronomical Society Teacher Resource Agents

Iowa Science Teachers Journal

The American Astronomical Society Teacher Resource Agent Program invites teachers to apply for four-week summer institutes during the summer of 1994. The institutes will be held at Loyola University in Chicago, Northern Arizona University in Flagstaff and University of Maryland at College Park.


Science Notes - Natural History Potpourri Workshops Jan 1993

Science Notes - Natural History Potpourri Workshops

Iowa Science Teachers Journal

Natural History Workshops are scheduled at the Conservation Education Center (Springbrook) for the weeks of June 12-17 and 19-24, 1994. The Potpourri of topics includes: birds, trees, rocks, prairie plants and pond life. The week-long sessions will include field trips, lecture/discussions, slide talks and participation in activities which link the content topics to classroom activities.


Science Notes - Excellence In Science And Mathematics Teaching Awards, Jonna M. Higgins Jan 1993

Science Notes - Excellence In Science And Mathematics Teaching Awards, Jonna M. Higgins

Iowa Science Teachers Journal

The 1993 Iowa recipients of the Presidential Award for Excellence in Science and Mathematics Teaching have been announced. Cindy Earlene Roberts of Lake View Auburn Community Schools was selected as the awardee in the Elementary Science category. The awardee in the Secondary Science category was Hector Ibarra of West Branch Middle School.


Index To Volume 30 Jan 1993

Index To Volume 30

Iowa Science Teachers Journal

No abstract provided.


Front Matter Jan 1993

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Mass Selection For Adaptation In Antigua Maize (Zea Mays L.) Composite, F. M. San Vicente, A. R. Hallauer Jan 1993

Mass Selection For Adaptation In Antigua Maize (Zea Mays L.) Composite, F. M. San Vicente, A. R. Hallauer

Journal of the Iowa Academy of Science: JIAS

Tropical maize (Zea mays L.) germplasm has had limited use in temperate areas because of photoperiod sensitivity. Antigua germplasm from the island Antigua was introduced co Iowa because of its resistance to important pests of maize and its heterosis exposed m crosses with ocher tropical varieties. Mass selection procedures were used to adapt the Antigua Composite germplasm co Iowa conditions. After. Six cycles of mass selection for earlier silk emergence, the selected Antigua Composite flowered 17 days earlier than the original composite. Grain yield and ocher agronomic traits of the adapted scram of Antigua were similar co chose of adapted …


Well-Water Quality Data From A Volunteer Sampling Program: Audubon County, Iowa, L. S. Seigley, G. R. Hallberg, P. R. Walther, G. A. Miller Jan 1993

Well-Water Quality Data From A Volunteer Sampling Program: Audubon County, Iowa, L. S. Seigley, G. R. Hallberg, P. R. Walther, G. A. Miller

Journal of the Iowa Academy of Science: JIAS

This study presents the results of a countywide volunteer sampling of private well-water. Volunteers collected 231 well-water samples in Audubon County for nitrate-nitrogen (NO3,-N) and total coliform bacteria analyses during September 1988. Questionnaires were completed at all sites to document well construction, age and depth of well, well placement relative to septic system, barnyard/feedlots, location of chemical mixing/tank rinsing, and presence of abandoned wells.


Editorial Board & Iowa Academy Of Science Officers And Directors Jan 1993

Editorial Board & Iowa Academy Of Science Officers And Directors

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Evaluation Of Passive Integrated Transponders As A Marking Technique For Turkey Poults, Dewaine H. Jackson, William H. Bunger Jan 1993

Evaluation Of Passive Integrated Transponders As A Marking Technique For Turkey Poults, Dewaine H. Jackson, William H. Bunger

Journal of the Iowa Academy of Science: JIAS

Injectable, passive integrated transponders (PITs) were evaluated as a marking technique for newly hatched wild turkey (Meleagris gallopavo Linnaeus) poults. Seven of 12, 3-day-old domestic turkey poults received a PIT implant and a wing tag. A control group of five poults received only a wing tag. Two subcutaneous implant sites were evaluated, along the right side of the neck and in the area between the right inner thigh and breast. One of7 PITs failed or was expelled during the first week. Four scanning errors, in which the PIT was present yet not detected during the initial scanning attempt, occurred in …


Range Expansion Of The Great-Tailed Grackle In The 1900s, James J. Dinsmore, Stephen J. Dinsmore Jan 1993

Range Expansion Of The Great-Tailed Grackle In The 1900s, James J. Dinsmore, Stephen J. Dinsmore

Journal of the Iowa Academy of Science: JIAS

In 1900, the range of the Great-tailed Grackle extended north of the Mexican border only into Texas. Since then, it has expanded its range greatly. It now nests in 14 states and has strayed to an additional eight states and three Canadian provinces. Much of this expansion has occurred since 1960. Great-tails often stray far from their normal range, especially in spring. Most of these strays are single individuals. In states where they have nested, breeding birds typically reach the state a few years after the first reports of the species. Great-tailed Grackles do well in a variety of human …


Journal Of The Iowa Academy Of Science Submission Form And Instruction Sheet Jan 1993

Journal Of The Iowa Academy Of Science Submission Form And Instruction Sheet

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Annual Report Of The Iowa Academy Of Science, 1992-93, Paul E. Rider Jan 1993

Annual Report Of The Iowa Academy Of Science, 1992-93, Paul E. Rider

Journal of the Iowa Academy of Science: JIAS

Starting in 1976, annual reports have served as a continuing record of the activities of the Iowa Academy of Science. These augment a 100 year history of the Academy which was written in the centennial year of 1975. This report covers the period from July 1, 1992 to June 30, 1993. It is based on the official records of the Academy (committee reports, Board minutes, correspondence) as well as the recollections, impressions and thoughts of the author.


Back Cover Jan 1993

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Science Notes - Nabt Grant Focuses On Student Research Jan 1993

Science Notes - Nabt Grant Focuses On Student Research

Iowa Science Teachers Journal

The National Association of Biology Teachers' project, Encouraging High School Student Research in Biology through Teacher-Scientist Partnerships, is accepting applications for nationwide field testing to begin in the fall of 1994. The project is funded by a five-year grant from the National Science Foundation.


Science Notes - Grants Available For Physiology Research Jan 1993

Science Notes - Grants Available For Physiology Research

Iowa Science Teachers Journal

The American Physiological Society (APS) is sponsoring a program to provide high school science teachers with experience in physiology research. Each grant supports the involvement of a high school teacher in an ongoing research program at an APS member's laboratory.


Science Notes - Bonnett Receives Conservation Achievement Award, Jonna M. Higgins Jan 1993

Science Notes - Bonnett Receives Conservation Achievement Award, Jonna M. Higgins

Iowa Science Teachers Journal

Barbara Bonnett was recently named a 1993 Conservation Achievement Award winner by the Iowa Wildlife Federation for her work in Conservation Education. Bonnett, a Burlington elementary school teacher, is currently an Associate Director of the Environmental Issues Instruction (eii) program, which builds ecological foundations in order to prepare students to take responsible environmental action.


Editorial Office & Staff; Officers, Iowa Academy Of Science; Executive Board & Regional Directors, Iowa Science Teachers Section Jan 1993

Editorial Office & Staff; Officers, Iowa Academy Of Science; Executive Board & Regional Directors, Iowa Science Teachers Section

Iowa Science Teachers Journal

No abstract provided.


The Iowa Science Teachers 1993 Fall Conference, Iowa Academy Of Science Jan 1993

The Iowa Science Teachers 1993 Fall Conference, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Luncheon Speaker ... 2-3
Exhibitor Checkoff ... 4
Raffle ... 5
Door Prizes ... 6 - 8
Housing Information ... 9
Concurrent Sessions I ... 10
Concurrent Sessions II ... 14
Concurrent Sessions III ... 19
Luncheon Information ... 24
Conference Registration Form ... Centerfold
Application for Membership ... Centerfold
Concurrent Sessions IV ... 25
Concurrent Sessions V ... 30
Corporate Sponsors ... 35
Exhibitors ... 36-37
Science Center of Iowa ... 38
Map ... 39
Acknowledgments ... 40
ISTS Officers and Regional Directors ... Inside Back Cover


Cover - Table Of Contents Jan 1993

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Mutant Weeds Of Iowa: V. S-Triazine Resistant Setaria Faberi Herrm, R. Thornhill, J. Dekker Jan 1993

Mutant Weeds Of Iowa: V. S-Triazine Resistant Setaria Faberi Herrm, R. Thornhill, J. Dekker

Journal of the Iowa Academy of Science: JIAS

S-triazine resistance in giant foxtail (Setaria faberi Herrm.) has been reported previously, but not in the midwestern U.S. corn belt or Iowa. A study was conducted using a chlorophyll fluorescence assay to confirm the presence of resistance in one S. faberi population in Iowa. Variable chlorophyll fluorescence assays confirmed that a population of this species with this type of resistance exists in Iowa. This is the first report of s-triazine resistance in S. faberi, and the fourth species with this type of herbicide resistance, found in an Iowa agroecosystem.


Back Cover Jan 1993

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


Front Matter Jan 1993

Front Matter

Journal of the Iowa Academy of Science: JIAS

No abstract provided.


A Gravity Investigation Of The Fayette Structural Zone And Surrounding Area, Northeast Iowa, Richard L. Kellogg, Christopher Meinen Jan 1993

A Gravity Investigation Of The Fayette Structural Zone And Surrounding Area, Northeast Iowa, Richard L. Kellogg, Christopher Meinen

Journal of the Iowa Academy of Science: JIAS

A gravity survey was conducted over approximately 2600 square kilometers of northeast Iowa. The survey was undertaken to provide detailed gravity coverage at approximately one mile intervals and to investigate the sources of gravity anomalies in the study area. An additional objective was to verify with gravity data the presence of the Fayette Structural Zone, previously identified on the basis of magnetic linears. Four hundred and twenty-seven gravity stations were occupied and data from these stations combined with extant data from the Geological Survey Bureau of the Iowa Department of Natural Resources to produce the gravity interpretation. A Bouger gravity …