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Creation, Evolution And Public Education, Jack Gerlovich

Iowa Science Teachers Journal

In Iowa and other states, "creationism" has recently been advanced as an alternative to the theory of evolution. Attempts have been made to mandate legislatively "equal time" for creationist concepts in science classrooms, materials and textbooks.

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Individualized Chemistry For The Gifted Student, Floyd Sturtevant, Kenneth Hartman, James Jones

Iowa Science Teachers Journal

Through a Teacher Incentive Award from the Iowa Department of Public Instruction, the honors chemistry course of Ames Senior High School has been converted into a packet form. The packets are flexible enough so the gifted chemistry student may be integrated into the chemistry B sections or the packets may be used for a separate honors chemistry class. The flexible sequencing allows the same topics to be studied concurrently with the chemistry B students.

Module On Energy

Iowa Science Teachers Journal

Energy and Society: Investigations in Decision Making is a nine-week instructional unit designed for high school, college, or adult students, which was developed by the Biological Sciences Curriculum Study.

Consumption Of Foods With Additives And Other Chemicals: Polychemical Use Or Abuse?, Charles A. Frederick

Iowa Science Teachers Journal

The problem of providing an adequate food supply to feed the world's hungry is and has been a major concern among many scientists, politicians and other leaders representing many sectors of American society. As a result of such concern, every conceivable avenue is now being explored to find new ways whereby new crops and foodstuffs can be raised or developed to meet the world's demand. In Geneva, Switzerland in 1975, some members of the World Health Organization (WHO) indicated that "the continuing.increases in the world population without a comparable increase in the available amount of conventional foodstuffs must stimulate further …

Starting A Science Center?

Iowa Science Teachers Journal

Starting a Science Center? is a 34-page booklet prepared for the Association of Science-Technology Centers by Victor J. Danilov, director of the Museum of Science and Industry in Chicago.

Why Clean Up Water

Iowa Science Teachers Journal

Forty percent of the United States Water supply is, in part, drawn from water that has been used for industrial or domestic purposes.

The 1978 Outstanding Teacher Award, James Hungerford

Iowa Science Teachers Journal

The Iowa Science Teachers Section has selected Dr. Delma Harding of Iowa State University as its recipient of the 1978 Outstanding Service Award.

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.

The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Snakes, James L. Christiansen, Russell R. Burken

Iowa Science Teachers Journal

Iowa has 23 amphibian and reptilian species whose known populations or ranges within the state are so small as to justify their inclusion in the state's endangered or threatened list (Roosa, 1977). This paper is intended to inform the Iowa scientific teaching community of the plight of these species and to recruit help in gathering information relative to their distribution. Most of the information presented here has been accumulated by Christiansen and Bailey (manuscripts in preparation or in press) in their work on the amphibians and reptiles of Iowa.

Free Publications

Iowa Science Teachers Journal

These publications, ideal for students in grades 4-10, are free to teachers.

Test 1282: Steiger Tiger Iii St-450 And St-470 6-Speed (Diesel), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

A Philosophical Approach To The History Of Microbiology, James Slock

Iowa Science Teachers Journal

In a previous article, science and how science operates was discussed from a philosophical point of view. In this article, the history of the Germ Theory of Disease (and hence a large part of the history of microbiology) is discussed from the philosophical perspective presented in the first article. The history presented in this article is not intended to be definitive but rather to view the history of the Germ Theory of Disease from a different perspective.

Resource Survey For Handicapped Students

Iowa Science Teachers Journal

A comprehensive survey of resources in the teaching of science to physically handicapped elementary and secondary level students is being undertaken by the American Association for the Advancement of Science (AAAS) Project on the Handicapped in Science.

Teaching Both Brains, Roy Unruh

Iowa Science Teachers Journal

In the advanced vertebrates, including man, the two large hemispheres of the cerebrum of the brain serve as centers of perception, of voluntary motion, and of the higher mental faculties such as thought and memory. The two hemispheres are connected by several bands of nerve tissue the major tissue being the corpus callosum. The two hemispheres control the motor and sensory responses of the opposite sides of the body. Some hemispheric differences in function were reported as early as 1861 when Dr. Paul Broca observed that patients with lesions on their left cerebral hemispheres were more likely to suffer loss …

Metric Conversions, Linda B. Holm

Iowa Science Teachers Journal

After considering several approaches to the problem of teaching metric conversions, I developed an approach of my own which seems easy for students to work with and understand.

A Burning Question

Iowa Science Teachers Journal

If you burn logs in your fireplace to keep warm in the winter, can you burn antilogs to keep cool in the summer?

New Environmental Education Resource

Iowa Science Teachers Journal

Environmental Education Process for Iowa Schools by Bernard Clausen and David McCalley of the University of Northern Iowa has been published recently by the Curriculum Division of the Iowa Department of Public Instruction.

Entry Into Elementary Science Through Live Animals, Stanley L. Weinberg

Iowa Science Teachers Journal

Some years ago I did a series of animal behavior film loops for the Ealing Company. The film loops sold well. Their distribution has been taken over by a subsidiary of CBS and they still sell. The series has been a commercial success. But I judge it a pedagogical failure.

Learning To Write Chemical Equations Is Something Else, Robert W. Hanson

Iowa Science Teachers Journal

Chemical equations are the stock-in-trade for much of what is expected of students in the first semester of college chemistry. Knowing how to read them, balance them, and interpret them in terms of molar ratios or stoichiometry is one thing; being able to write them from chemical knowledge or from experimental observations is another.

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Introduction, James L. Christiansen, Russell R. Burken

Iowa Science Teachers Journal

Iowa has 23 amphibian and reptilian species whose known populations or ranges within the state are so small as to justify their inclusion in the state's endangered or threatened list (Roosa, 1977). This paper is intended to inform the Iowa scientific teaching community of the plight of these species and to recruit help in gathering information relative to their distribution. Most of the information presented here has been accumulated by Christiansen and Bailey (manuscripts in preparation or in press) in their work on the amphibians and reptiles of Iowa.

The Endangered And Uncommon Amphibians And Reptiles Of Iowa - Complete Issue, James L. Christiansen, Russell R. Burken

Iowa Science Teachers Journal

Iowa has 23 amphibian and reptilian species whose known populations or ranges within the state are so small as to justify their inclusion in the state's endangered or threatened list (Roosa, 1977). This paper is intended to inform the Iowa scientific teaching community of the plight of these species and to recruit help in gathering information relative to their distribution. Most of the information presented here has been accumulated by Christiansen and Bailey (manuscripts in preparation or in press) in their work on the amphibians and reptiles of Iowa.

Geology Teaching Aids

Iowa Science Teachers Journal

The U.S. Geological Survey has compiled two packets of geology teaching aids.

Float, Sink, Think!, Timothy Cooney

Iowa Science Teachers Journal

The following is a typical question asked at the end of physics units dealing with buoyancy: "A barge loaded with scrap iron is in a canal lock. The captain orders his crew to dump all of the scrap iron overboard. What happens to the water level in the lock?" I have asked this type of question to both high school and college physics students. Of course, answers are given which predict an increased, a decreased , or an unchanged water level.

A Quick Camera Obscura

Iowa Science Teachers Journal

Take a Pringles potato chip can and a Planters potato chip can. Poke a hole in the bottom of each.

Free Units

Iowa Science Teachers Journal

The following units can be obtained free from the U.S. Department of Energy.

David Brown Tractors: Inside Story, Nebraska Tractor Test Lab

Nebraska Tractor Tests

DAVID BROWN TRACTORS: INSIDE STORY

A summary of the design and manufacturing achievements of David Brown Tractors Ltd.

David Brown 'Firsts'

Few if any, tractor manufacturers can equal the David Brown record of pioneering achievement in tractor maufacture and development. Major examples are:

1937 - World's first farm tractor equipped with hydraulic lift and converging 3-point linkage

1948 - Two-speed power take-off, six-speed gearbox

1949 - High-speed direct injection diesel engine for farm tractors

1953 - Traction control (implement weight transfer)

1959 - All purpose tractor hydraulic system with single lever control.

1964 - Dial-controlled tractor hydraulic system

1968 - …

Test 1274: Steiger Panther Iii Pt-350 With Or Without Pto, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE

General

Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.

The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …

Test 1278: Massey-Ferguson 2775 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF THE TEST PROCEDURE

General

Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.

The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …