Digital Commons Network^™

Five Home Study Courses

Iowa Science Teachers Journal

Five science-oriented courses will be offered by ISU and/or SUI beginning in September.

Loss Of Farmlands

Iowa Science Teachers Journal

Every day, 12 more square miles of American farmland is converted to non-agricultural purposes, according to Disappearing Farmlands, published by the Agricultural Lands Project.

Chemsmiles

Iowa Science Teachers Journal

A brightly-colored collection of slogans on seven different shirts, and 20 stickers for introductory chemistry are now available.

Science And The Curriculum, James J. Hungerford

Iowa Science Teachers Journal

The National Honor Society of Marshalltown Community High School recently surveyed 200 honor graduates, 20 from each class for the last 10 years. 93 questionnaires were completed and returned. Of those returned, over 50% were engaged in science-oriented careers.

Beyond The Metre (Part Ii), Richard S. Thompkins, Vincent N. Lunetta

Iowa Science Teachers Journal

This article is the second in a series discussing the wide spectrum of metric units. The first article dealt with some general aspects of the International System of Units (SI) and then went on to consider the metre, square metre, cubic metre and second. This article describes the SI unit of mass, and how units for velocity and acceleration are built using physical laws.

Animal House

Iowa Science Teachers Journal

A new manual has been written for those interested in constructing housing for laboratory animals.

The Pied-Billed Grebe, Mark R. Ryan

Iowa Science Teachers Journal

The pied-billed grebe is a common inhabitant of Iowa's remaining prairie ponds and marshes. Pied-bills are small, aquatic birds weighing between 300 and 500 grams. They are strong swimmers, but relatively weak fliers.

Ragweed

Iowa Science Teachers Journal

Aqueous extracts from the leaf of giant ragweed reduce growth in sorghum seedlings and reduce germination in sorghum and radish seeds.

Educational Handicaps In Chemistry Students, Charles Douglass Jr.

Iowa Science Teachers Journal

Research has been carried out to determine which characteristics and abilities are the best predictors of success in a college level chemistry course. Much of the work has centered on achievement measures such as high school chemistry performance, SAT or ACT scores, and the like. Factors other than demonstrated aptitude and ability are also important to success. Some research has looked at the effect of cognitive styles and motivational factors in attempting to predict success. Recent studies in our department indicate that most students who do not perform well may be thought of as suffering from an educational handicap, where …

The Maligned And Misunderstood North American Badger, Richard Lampe

Iowa Science Teachers Journal

The common though highly elusive North American badger is seldom seen and often misunderstood. When badgers are encountered by man, the experience is frequently startling to both parties. Impressions based on such limited and stress-filled information are biased. For example, it is widely believed that this member of the family Mustelidae (which also includes skunks, otters and weasels) is vicious, mean and aggressive. However, personal experience with badgers gained from studies over the past 10 years indicates that, although quite capable of defending themselves, badgers are shy, secretive and good bluffers.

Human Genetic Materials

Iowa Science Teachers Journal

To request information on a catalog of sources on Informational and Educational Materials on Human Genetics and Genetic Diseases, write the National Clearinghouse for Human Genetic Diseases.

Epidemic, James Hungerford

Iowa Science Teachers Journal

Approximately 100,000 teenage girls in the United States become pregnant each year. Teenage childbearing in the United States rates among the world's highest.

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Evaluation Of Affective Behaviors Of High School Science Students, Gary E. Downs

Iowa Science Teachers Journal

American education has been in a constant state of change during the last half-century. Some of the changes in science education are being questioned by the critics. Some of the criticism has come about because of the emphasis on subject matter content and very little emphasis, if any at all, on values. Science education must be part of the movement to a more humanistic education for young people. One method that teachers can use to help determine the direction of science education is to try and teach for and measure the affective behavior of their students. This paper is a …

Two $200 Cash Scholarships

Iowa Science Teachers Journal

This year at the Hawkeye Science Fair April 3-4, 1981, there will be two special awards given by the Iowa Association of County Conservation Boards and an anonymous donor.

Roots, Richard F. Trump

Iowa Science Teachers Journal

When I found a way of giving my students a better view of what goes on underground, they started asking better questions, and they found better ways of answering those questions. That was the most exciting aspect of some work I was doing for the Agricultural Research Service (ARS). My assignment was to find ways of using, in the classroom, some of the techniques developed by Dr. Howard Taylor and his associates at Iowa State University involving investigations into root growth.

A Review Of A Prose Gem, Dave Fagle

Iowa Science Teachers Journal

9. a review

Now and then as we move through this life we are happy that we can read because some small written gem catches our eye. Sharing Nature With Children by Joseph Bharat Cornell is such a gem.

Astronomy News

Iowa Science Teachers Journal

Texas McDonald Observatory, in an effort to increase public understanding of astronomy, publishes McDonald Observatory News.

Energy Booklet

Iowa Science Teachers Journal

The following energy booklet is available free from Edison Electric Institute.

The Meter Redefined

Iowa Science Teachers Journal

The current definition of the meter, based on the measurement of the wavelength of a line in the ⁸⁶Kr spectrum, is 10⁴ times less accurate than the definition of time by the cesium "atomic clock."

Trailing The Trilobite, Joseph H. Brown

Iowa Science Teachers Journal

Rocky ledges jutting forth to form stony outcrops along -Iowa's streams, roadcuts and hillsides provide evidence of ancient environments entirely different from the rolling prairies of today. These rocky ledges were laid down in the bottoms of vast shallow seas which covered most of Iowa in its past history. Over great lengths of time, the waters swept back and forth, rising and subsiding, leaving a record in the layers of the earth's materials deposited in their depths. As the seas rose and fell, the deposits buried one another and became layers of conglomerate, sandstone, shale and gypsum. Minerals of calcite, …

Nasa Slides

Iowa Science Teachers Journal

NASA is offering sets of slides on 20 different topics in return for Kodachrome 25 film.

Officers, Iowa Academy Of Science; Editorial Staff ; Officers & Regional Directors, Iowa Science Teachers Section; Advisory & Technical Review Boards

Iowa Science Teachers Journal

No abstract provided.

1980 Yearbook, Northern University High School

Malcolm Price Laboratory School Yearbooks

The student yearbook of the Northern University High School, part of the Malcolm Price Laboratory School of the University of Northern Iowa.

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

University Of Northern Iowa Fact Book, 1980-1981, University Of Northern Iowa

University of Northern Iowa Fact Book

Contents:

--Type of Institution
--Accreditation
--Location and Size of Campus
--Athletic and Physical Education Facilities
--President
--Fall Enrollment Through the Years
--Number of Buildings
--Appropriations and Budget
--Valuation of Investment in Plant
--Tuition and Fees
--Board and Room
--Administrative Organization
--University Employees
--Number of Graduates
--Who to Call: Administrative Divisions, Services and Information
--Types of Education Offered
--Special Services
--Instructional Buildings
--Administrative & Plant Facilities
--Student Housing and Food Services
--Family (Married Student) Housing
--Miscellaneous & Other Buildings
--Index

Editorial Board

Proceedings of the Iowa Academy of Science

No abstract provided.

An Investigation Into The Effects Of Classroom Guidance Activities On Self-Concept And Arithmetic Achievement In Third Graders, Betty Elaine Barrick

Dissertations and Theses @ UNI

This study was designed to investigate the effect of classroom guidance activities on the self-concept and arithmetic achievement of third graders, and to determine what relationship exists between self-concept and arithmetic achievement. Effects of the treatment were examined between experimental and control groups and between boys and girls. Forty subjects participated in the study, 20 in the experimental and 20 in the control group. Initial equivalence of math instruction and of the two groups of students was established by examining Iowa Tests of Basic Skills class composites for the previous five years for classes of the two instructors, and by …

The Synthesis Of (3s-8as)-3-Benzyl-1-Oxo-Hexahydro-2h-Pyrrolo (1,2-A)Pyrazine, Judy Kay Gantenbein

Dissertations and Theses @ UNI

The synthesis of (3S-8aS)-3-benzyl-1-oxo-hexahydro-2Hpyrrolo(1,2-a) pyrazine was desired for further experimentation on its metabolic effects on day old cockerels. This compound was synthesized using available compounds of L-phenylalanine and L-proline. The intermediate compounds synthesized were L-phenylalanine methyl ester hydrochloride , L-phenylalinol, N-carbobenzoxy1-proline, p-nitrophenyl ester of N-carbobenzoxy-L-proline , N-carbobenzoxy-L-prolyl-L-phenylalainol, N-carbobenzoxy-L-prolylL-phenylalinyl chloride , and L- prolyl-L-phenylalinyl chloride. A discussion of methods of peptide linkage with specific emphasis on the carbobenzoxy N-protecting group and the methods for activating the carboxylic acid of the N-protected amino acid is included. Also discussed are the method and problems encountered in the removal of the carbobenzoxy group from …