Science and Mathematics Education Commons^™

The Vascular Flora Of Pilot Knob State Preserve, William C. Watson

Journal of the Iowa Academy of Science: JIAS

Pilot Knob State Preserve is a 365 acre (147 ha) area lying within the boundaries of Pilot Knob State Park. Located in north central Iowa near the northeast corner of Hancock County, this preserve resides on the eastern morainal system of the Des Moines Lobe left from the Wisconsinan glaciation. The vegetation of the preserve is primarily a deciduous woodland on rolling hills interspersed with wetland habitats in the hollows. Iowa's only floating bog is present in one of these hollows and supports numerous vascular plants uncommon to the state. Two species, Carex cephalantha (Bailey) Bickn. and Drosera rotundifolia L., …

Astronomy Bulletin - The 1989 Summer Sky, P. Steven Leiker, Thomas A. Hockey

Iowa Science Teachers Journal

No abstract provided.

Synthesis And Antibacterial Studies Of Some 2-Furanthiocarboxyhydrazones, Xiaorong Li, Zoumin Sun, James C. Chang

Journal of the Iowa Academy of Science: JIAS

Seven 2-furanthiocarboxyhydrazones were prepared, 5-nitro-furaldehyde-2-furanthiocarboxyhydrazone from the reaction of 2-furanthiocarboxyhydrazide with 5-nitro-2-furaldiacetate and the others from the condensation of 2-furanthiocarboxyhydrazide with aldehydes: 2- furaldehyde, benzaldehyde, p-hydroxybenzaldehyde, o-methoxybenzaldehyde, o-vanillin, and salicylaldehyde. The seven 2-furanthiocarboxyhydrazones were tested for their antibacterial activities against Staphyloccocus aureus and Bacillus subtilis. 5-Nitro-2-furaldehyde-2- furanthiocarboxyhydrazone was found to display the strongest bacterotoxicity.

Iowa Geology: The Early Years, Wayne I. Anderson

Journal of the Iowa Academy of Science: JIAS

In 1975 on the occasion of the first one hundred years of the Iowa Academy of Science, Robert W. Hanson summarized the history of the organization. Additional historical accounts covering many of the science disciplines were published during the centennial year. Although geology was not treated separately in these special articles, the contributions of early geologists were important to the development of science in our state. Consequently, it is appropriate to consider the contributions of early geologists in Iowa in celebration of the one hundredth annual meeting of the Iowa Academy of Science. Included in the present report are the …

Astronomy News & Resources, P. Steven Leiker, Thomas A. Hockey

Iowa Science Teachers Journal

Most of us have at one time or another in our lives seen a meteor, or "shooting star," on a clear night. This phenomenon usually appears as a brief streak of light in the sky. A meteor occurs when a tiny meteoroid intercepts the Earth's atmosphere and meets a fiery destruction due to the tremendous friction it encounters.

Astronomy Resources, P. Steven Leiker, Thomas A. Hockey

Iowa Science Teachers Journal

"The locus of points such that the sum of the distances between each point and two other fixed focii is constant." This definition of the ellipse, that figure from geometry so important to the understanding planetary and stellar orbits, may be familiar, yet it often remains confusing. We find that creating an ellipse in front of a class as we discuss its features helps to clarify this mathematical definition.

Astronomy Bulletin - The 1989-90 Winter Sky, P. Steven Leiker, Thomas A. Hockey

Iowa Science Teachers Journal

No abstract provided.

Astronomy News, P. Steven Leiker, Thomas A. Hockey

Iowa Science Teachers Journal

On September 30, 1989, astronomers from across the state gathered in Ames to attend the Iowa Astronomy Convention. Sponsored by state astronomy organizations, the convention brought together astronomy professionals, teachers and hobbyists for the first of what is intended to be an annual event.

Astronomy Resources, Thomas Hockey

Iowa Science Teachers Journal

The scale of the solar system is often demonstrated by having students stand at appropriate distances away from one another in order to represent the planets' average distances from the Sun. At any practical representative scale, however, the physical diameters of the planets cannot be shown at the same time.

The Annual Meeting Of The Iowa Academy Of Science April 21-23, 1988 [Program, 100th Meeting], Iowa Academy Of Science

Iowa Academy of Science Documents

Program Contents:

Program Summary --- 5
General Session Speakers --- 9
Awards --- 13
Distinguished Fellows --- 13, 14
Distinguished Iowa Scientist --- 15
Distinguished Service --- 16
Symposia Programs --- 17
Video Film Preview --- 19
Special Meetings --- 20
Field Trip --- 20
Poster Papers --- 21
Campus Map --- Centerfold
Section Programs --- 25
Agricultural Sciences --- 26
Anthropology --- 28
Biotechnology --- 30
Botany --- 32
Chemistry, Inorganic --- 37
Chemistry, Organic --- 42
Conservation --- 44
Earth Science Teaching --- 46
Elementary Science Teaching --- 47
Engineering --- 48
Geology --- 53
Linguistics --- 58 …

Program Abstracts, 100th Session, Iowa Academy Of Science, April 21-23, 1988, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Science Notes - High School Teachers Offered Minigrants For Sts Materials Development

Iowa Science Teachers Journal

A new program offering high school teachers up to $1000 in materials development funds has been created by the American Chemical Society. The ACS-STS Minigrants will fund projects focusing on issues related to science, technology and society (STS).

Science Notes - University Of Iowa Research Program For Secondary Students

Iowa Science Teachers Journal

This summer marks the thirtieth consecutive year of the University of Iowa's Secondary Student Training Program. During that time, enrichment experiences in science have been provided to over four thousand secondary students. The Iowa-SSTP Program is open to students who have completed grades 10, 11 and 12.

Science Notes - Space Science Student Involvement Program For Middle School/Junior High School Students, Stephanie A. Althof

Iowa Science Teachers Journal

The National Science Teachers Association, in conjunction with the National Aeronautics and Space Administration, is once again sponsoring Space Science Student Involvement Program (SSIP) competitions. SSIP provides students with an opportunity to design experiments which are relevant to aerospace science.

Science Notes - What's The Outlook For Summer 1989?, Carl W. Bollwinkel

Iowa Science Teachers Journal

One week OUTLOOK Training sessions will be offered in Iowa beginning June 11, June 18 and June 25. OUTLOOK is an environmental education enrichment program developed for grades K-12.

Science Notes - The Tropical Rainforest: An Environmental Issue Workshop, Carl W. Bollwinkel

Iowa Science Teachers Journal

Phase III monies may be available to K-12 teachers who plan now to attend the October 27,-28 workshop on the Tropical Rain Forest. Teachers must obtain information from their local school district.

Science Calendar

Iowa Science Teachers Journal

No abstract provided.

Index To Volume 25

Iowa Science Teachers Journal

No abstract provided.

Science Notes - Action Skills For Science-Related Societal Skills

Iowa Science Teachers Journal

An opportunity for teacher involvement in a curriculum development and training program is part of a proposal now being written.

Index For Volume 95

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

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

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Cover - Table Of Contents

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Back Cover

Journal of the Iowa Academy of Science: JIAS

No abstract provided.

Anthracnose Kernel Rot Of Maize Caused By Colletotrichum Graminicola (Ces.) Wils.: Mode Of Entrance Into And Disease Progression In Ears, Claude Nankam, D. C. Foley

Journal of the Iowa Academy of Science: JIAS

The mode of establishment of Colletotrichum graminicola in maize ears to cause kernel infection was studied for two types of infective propagules and three sites of penetration. Shank inoculations with either oat-grain inoculum or spores induced a greater percentage of infected kernels than inoculations of the husk or kernel area with an infected oat grain or inoculations of the silks with an oat grain or a spore suspension in 1985. But in 1986, a spore suspension in the kernels ranked first among all the treatments based on the basis of disease severity on the kernels. However, a large percentage of …

The Taxonomy And Biology Of Strauzia (Diptera: Tephritidae), W. Bryan Stoltzfus

Journal of the Iowa Academy of Science: JIAS

The North American genus Strauzia is revised. Five new species are included with keys to adults of the 12 known species. Host plant, important larval characteristics, and life cycle information are given for 11 of the species. The evolution of the genus is discussed and 14 host plants are reported. All species bore in the stems of Asteraceae, pupariate in the crown area or in the soil, and are univoltine.

The I.A.S. Bulletin, V22n1, January 1988, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- A Note from the Editor
--- Proceedings and Chem Abstracts
--- AD HOC Publications Committee Discharged
--- AAAS Annual Meeting
--- Centennial Meeting
--- Reflections
--- Natural Resources Workshop for Women
--- Laser Laboratory
--- Ames Laboratory Recognized
--- Soil and Water Conservation Society
--- Section Reorganization
--- Iowa Academy of Science Nomination for Promotion to Fellow
--- The Long Range Planning Committee Asks for Your Ideas
--- IAS Planning Questionnaire
--- Membership Facts

Loess Hills: A National Natural Landmark, Jean C. Prior

Iowa Science Teachers Journal

Loess is one of the most common geologic materials found on the land surface in the Midwest. This can also be said for the lower Mississippi Valley, the Palouse district of eastern Washington, central and eastern Europe, the Ukraine of southwestern Russia and eastern China. The word itself is German in origin, and as late as the 1860s was regarded as a provincial name for deposits along the Rhine Valley. Loess, glacial history, native grasslands and productive agricultural regions are linked together across the mid-latitudes of the northern hemisphere.

Editor's Corner - Support And Growth Revisited, Carl W. Bollwinkel

Iowa Science Teachers Journal

The editorial in the Autumn 1987 issue of ISTJ was entitled "Support and Growth." Growth for ISTJ was deemed essential. Support was lacking in some essential aspects. As editor, I had decided it was time to step aside so that the Academy could find the support and provide the opportunity for growth. Since that editorial was written, support has been found and I am pleased to be able to accept reappointment as ISTJ editor. Revisiting the topic of support and growth now seems important.

Science Notes - 1989 Swackhamer Prizes Student Essay Contest, Stephanie A. Althof

Iowa Science Teachers Journal

All high school seniors are invited to submit essays to the 1989 Swackhamer Prizes Student Essay Contest. The contest annually seeks student suggestions for constructive approaches to the problems of war and peace. The topic title for this year's competition is ''What is the Importance of the Nuremberg Principles to Peace in the Nuclear Age?"