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The Ias Bulletin, V4n5, November 1970, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- Officers, Directors, and Section Chairmen, 1970-71
--- Important Board Action Concerning Proceedings
--- Annual Meeting Plans
--- Governor's Conference on Environmental Systems
--- "Public Lands and the People" Conference
--- IAS to Seek NSF Support for State Government-Academy Cooperation
--- IAS Receives NSF Grant to Help Finance Junior Academy Research Symposium
--- New Standing Committees Asked to Meet
--- Iowa Academy-State of Iowa Connections
--- Survey of Interest in the Iowa Science Teachers Journal
--- Back Issues of the Proceedings Available
--- Changes in Farm Management
--- Legislative Advisory Committee to be Appointed
--- Invitations for …

The Ias Bulletin, V4n4, September 1970, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- Officers, Directors, and Section Chairmen, 1970-71
--- Roster of Committees
--- New Blood in the Board
--- Board Meeting October 31
--- Publications Committee to Meet
--- annual Meeting Committee to Meet
--- Chemistry Teachers of Central Iowa May Organize
--- Cooperative Project for Two-Year Colleges Underway
--- Request for Information on Environmental Education Materials
--- Academy Sponsors Environmental Education Conference
--- Indiana Academy Sets up Agency to Work with State Government
--- Northern Regional NSTA Conference
--- Correction to the Annual Report and Membership List
--- Gleanings from the Michigan Academy Newsletter
--- UNI Conservationist …

Critical Thinking As Related To Pssc And Non-Pssc Physics Programs, Robert H. Poel

Dissertations

No abstract provided.

The Level Of Mathematical Understanding Possessed By Prospective Elementary Teachers, William Dean Vodarski

All Master's Theses

It was the purpose of this study to determine the level of mathematical understanding possessed by prospective elementary teachers graduating from Central Washington State College. It was also the purpose to determine if the measured level of mathematical understanding is related to such factors as sex, education classes completed, mathematics classes completed, and grade level of student teaching.

An Evaluation Of Three Techniques For The Quantitative Sampling Of Marsh Invertebrates, John T. Falkenbury

All Master's Theses

The present study was designed to develop, compare, and evaluate three methods for quantitatively sampling the invertebrate standing crop on the water surface of dense cattail (Typha latifolia) marshes at 19 sites around the periphery of Caliche Lake in Grant County, Washington.

Cauchy Extensions Of Integrals, Donald Wayne Carlton

All Master's Theses

This paper presents some ideas on a different approach to the teaching of integral calculus. The method presented here, though simple in nature, requires little alteration when new topics such as probability and series are developed.

A Survey Of Aerospace Education In Grades Nine Through Twelve In The State Of Washington, Judith Ann Isaac

All Master's Theses

The purposes of this study were: (1) to survey the incidence of aerospace education in grades nine through twelve of Washington State schools, (2) to discover what courses and units include such education in the curriculum, (3) to determine who the teachers are, and the nature of their preparation, (4) to gain a description of what kind of education is attempted under this heading, and (5) to discover what the opportunities are for expanded aerospace education within the schools surveyed.

Test 1044: Allis-Chalmers Crop Hustler 185 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1043: Allis-Chalmers Crop Hustler 175 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1042: Oliver 1655, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1040: Oliver 1855 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1041: Oliver 1655 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

The Ias Bulletin, V4n3, May 1970, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- Officers, Directors, and Section Chairmen, 1970-71
--- 82nd Facts and Figures
--- Section Attendance
--- New Constitution Adopted
--- Concerning the Dues Increase
--- Abstracts Available
--- Election Results
--- New Standing Committees
--- New Proceedings Policies in 1971
--- Annual Report
--- New Members Since March

A Readability Survey Of The Science Textbooks Used In University Place Elementary School, District No. 83, Melvin Hans Jangard

All Master's Theses

The purpose of this study was to determine: 1) the readability of an intermediate series of science textbooks, Concepts in Science, published by Harcourt, Brace and World; 2) if the text was readable for the students at University Place Elementary School near Tacoma, Washington; 3) whether the gradation or slope of difficulty rises progressively from the beginning of the book to the ending of the book.

82nd Session Of The Iowa Academy Of Science, April 24-25, 1970, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

The 82nd Session Of The Iowa Academy Of Science And The 38th Convention Of The Iowa Junior Academy Of Science, April 24-25, 1970, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

Test 1038: Case 970 Power Shift Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1039: Case 970 Manual Gasoline, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1037: Case 970 Power Shift Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1034: Case 970 Manual Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1035: Case 1070 Manual Diesel (Also Case 1090 Manual), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

Test 1036: Case 1070 Power Shift Diesel (Also Case 1090 Power Shift), Nebraska Tractor Test Lab

Nebraska Tractor Tests

EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …

The Ias Bulletin, V4n2, March 1970, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- Officers, Directors, and Section Chairmen, 1969-1970
--- Full Program Scheduled for Grinnell April 24-25
--- Pre-Register for the Annual Meeting!
--- Academy Geologist Authors Book on Geodes
--- Constitution Revision
--- Iowa Academy of Science Registration got 82nd Session
--- Membership in the Academy
--- Environmental Week at ISU
--- Cooperative Projects for Two Year Colleges Funded by NSF
--- New Members Since January

Annual Report And Membership List, 1969-70, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Minutes of the Annual Business Meeting ... 3
Report of Tellers - Constitution Revision ... 7
Report of the Secretary - Treasurer ... 7
Report of the Auditing Committee ... 7
General Operating Budget 1970-71 ... 8
Report of the Membership Committee ... 9
Report of the Finance and Endowment Committee ... 16
Report of the Science Teaching Committee 17
Report of the Science Talent Search Committee ... 19
Report of the Conservation Committee ... 20
Report of the Resolutions Committee ... 21
Report of the Editor ... 22
Report of the High School Relations Committee ... 22
Membership …

Open Letter To Science Teachers: Society In The Science Classroom, Darrel Hoff

Iowa Science Teachers Journal

In a speech given to a group of scientists and science educators last spring, Paul deHart Hurd repeated a remark made earlier by Bentley Glass that "a serious mistake has been made in the development of our national curricula in not stressing the social implications of science". Indeed this is true. You will search in vain for a reference to atomic weapons in the index of the Chem Study text. You will find no listing for hydrogen fusion weapons in the index of the PSSC text. DDT goes unlisted in the CBA index. You will find no reference to the …

Cover - Ias & Ists Officers, Directors And Chairpersons - Ist Journal Information - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.

Careers In Science And Technology

Iowa Science Teachers Journal

Readers will find information about more than 30 career fields of interest to students in a 48-page bibliography of career guidance literature just released by the National Science Teachers Association. The NST A has compiled this 1970 edition of Keys to Careers in Science and Technology to inform students, guidance counselors, teachers, and parents about current publications that are useful and reasonably inexpensive.

How We Raise Clean, Healthy Amoeba Proteus, Eugene C. Bovee, Sandra C. Thompson, Mercedes L. Acuña

Iowa Science Teachers Journal

We so frequently use Amoeba proteus for observation and experimentation in our classes in Cell Structure and Function, and Physiological Protozoology at the University of Kansas, that it has been necessary to avoid buying the many needed cultures from any of the major biological suppliers. Consequently, we have had to devise a reasonably reliable method of our own to culture that amoeba.

The Toxic Activity Of Main Trunk Wood From Diseased Dutch Elm Trees, Lyle C. Baugess, J. Lester Dalton

Iowa Science Teachers Journal

The Dutch Elm disease is caused by Ceratostomella ulmi (Schwartz) Buis (1); and, two types of elm bark beetles (9) are its vectors (3,4,9). Growth of the fungus occurs in the xylem tissue, which predominantly is concerned with conduction of water to the foliage. The spores and bud cells of C. ulmi are smaller than the elm wood vessels (1,2). C. ulmi, too, can be transmitted through root grafts.

Warning Issued Against Universal Use Of Lasers

Iowa Science Teachers Journal

Enthusiasm for use of lasers in air pollution studies is being tempered by evidence that they should not be regarded as a universally useful yardstick, a University of Wisconsin physicist says.