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Iowa Science Teachers Journal

1975

Articles 1 - 30 of 54

Full-Text Articles in Education

Cover - Front Matter - Table Of Contents Jan 1975

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.


A Computer Assisted Environmental Education Resource Program, Sara K. Smerud, Gary Thomas, Tim Keenan, Dale Nimrod Jan 1975

A Computer Assisted Environmental Education Resource Program, Sara K. Smerud, Gary Thomas, Tim Keenan, Dale Nimrod

Iowa Science Teachers Journal

Northeast Iowa is an exceptionally beautiful and unique region. Environmental education in the schools and communities of this area is a vital factor in enabling citizens to take a reasoned approach to the conservation and management of this region. Two observations precipitated the action which resulted in the project described in this paper. The first was that the local resources were vulnerable to being utilized in a potentially harmful manner and secondly, teachers did not seem to be taking full advantage of their local resources in their classroom instruction.


Wanted: Names Of Outstanding Science Teachers In Iowa Jan 1975

Wanted: Names Of Outstanding Science Teachers In Iowa

Iowa Science Teachers Journal

The Board of Directors of the Iowa Academy of Science has a pp roved the recommendation of the Recognition and Awards Committee to expand the Excellence in Science Teaching Awards Program.


The Bicentennial Jan 1975

The Bicentennial

Iowa Science Teachers Journal

The Bicentennial will be celebrated in Iowa classrooms in many ways. By looking back on past scientific achievements, students may be better able to understand and appreciate the present and predict the future.


Exotic Food From Fermented Milk, Robert C. Goss Jan 1975

Exotic Food From Fermented Milk, Robert C. Goss

Iowa Science Teachers Journal

Whether prepared or bought at the market, yogurt is a dairy product made from milk -- cow, mare, sow, goat, buffalo, etc. Bacteria cultures of Streptococcus thermophilus and Lactobacillus bulgaricus are added to the milk with the result that the milk sugar is split into lactic acid. The casein, lactalbumin and milk proteins are broken down into peptones and amino acids. Finished yogurt has about 200,000,000 bacteria per ml and is rich in the vitamin B complex. Yogurt making is a manifestation of microbial ecology.


Dirty Books Jan 1975

Dirty Books

Iowa Science Teachers Journal

School books are notorious carriers of potentially dangerous bacteria. Books that are handed on to children in one class to their successors in the next year pose a considerable health hazard, according to the Institute for Educational Media, Frankfurt, Germany.


Mit To Study Nonconventional Protein Sources Jan 1975

Mit To Study Nonconventional Protein Sources

Iowa Science Teachers Journal

A major study of the world's nonconventional protein resources has been started by the Massachusetts Institute of Technology under a $185,000 grant from the National Science Foundation.


Algae And Energy, James J. Hungerford Jan 1975

Algae And Energy, James J. Hungerford

Iowa Science Teachers Journal

The extent to which algae contribute to human welfare is often forgotten, ignored or unappreciated. Many types of algae serve as bases in commercially prepared foods and condiments. Algal products are used in cosmetics, textiles, pharmaceuticals and paints. In Asia, algae are often mixed and served with rice and fish to supplement the human diet. In coastal areas of the world, kelps are often chopped as food for livestock. The alga Poryphyra is cultivated in Japan to supply a 65 million pound annual market.


The Christmas Experiment, Glen Loveridge Jan 1975

The Christmas Experiment, Glen Loveridge

Iowa Science Teachers Journal

What will you be doing with your class the last periods before the Christmas break? If you have a strong digestive system, try this production of foamy peanut brittle. It was first suggested in the Journal of Chemical Education, August 1972, by Richard C. Adams of Pleasant Hill High School, Pleasant Hill, Oregon 97401. However, the outline given was for a 90-minute lab, and I have modified it for a 40-minute lab. I have found that with my modifications, all of my students - good or poor - can do this lab.


Metric Punch, Agnes Hunt Jan 1975

Metric Punch, Agnes Hunt

Iowa Science Teachers Journal

A recipe for punch using metric units and chemical symbols.


Food From Newspaper Jan 1975

Food From Newspaper

Iowa Science Teachers Journal

Cellulose is the most abundant organic material which can be used as a source of food, fuel and chemicals. The net world-wide production of cellulose is estimated at one hundred billion tons per year. This is approximately 150 lbs. of cellulose per day for each and every one of the earth's 3.9 billion people. The energy to produce this vast quantity of cellulose comes from the sun and is fixed by photosynthesis.


Pemap Jan 1975

Pemap

Iowa Science Teachers Journal

The President's Environmental Merit Awards Program, similar to the Presidential Fitness Awards Program, was initiated in 1971 by the President of the United States to say "Thank you!" to millions of young Americans who devoted time and energy to improving environmental quality.


The Abo's Of Blood Types, Willard F. Hollander, Wilmer J. Miller Jan 1975

The Abo's Of Blood Types, Willard F. Hollander, Wilmer J. Miller

Iowa Science Teachers Journal

For high school age students the blood types can be a useful introduction to heredity. It has been shown, for example, that if both parents are type O, their children must all be type O: it is recessive to A and to B.


Officers, Iowa Academy Of Science; Officers, Editors, Regional Directors, Iowa Science Teachers Section; Editorial Review Board Jan 1975

Officers, Iowa Academy Of Science; Officers, Editors, Regional Directors, Iowa Science Teachers Section; Editorial Review Board

Iowa Science Teachers Journal

No abstract provided.


Thanks, I Needed That!, Stanley D. Whelchel Jan 1975

Thanks, I Needed That!, Stanley D. Whelchel

Iowa Science Teachers Journal

Each year, when high school students register for their next year's schedule of classes, the guidance counselors and teachers of science and mathematics hear the statement, "I don't need science or mathematics for what I plan to do after I graduate." It seems almost impossible to change their minds. One usually says, "You will need it when you get to college or to technical school." But this statement usually falls upon deaf ears because students have made up their minds that in the fields of work to which they aspire they will not need any additional mathematics or science. Besides, …


Cover - Front Matter - Table Of Contents Jan 1975

Cover - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.


Assessing Laboratory Instruction In Biology, Melton E. Golmon Jan 1975

Assessing Laboratory Instruction In Biology, Melton E. Golmon

Iowa Science Teachers Journal

Biology curriculum developments of the last decade have emphasized the importance of laboratory instruction in the learning environment. Not only do most students enjoy laboratory work but it provides them with an opportunity to make first hand observations, manipulate equipment, collect data, organize data, and draw their own conclusions concerning this information. One teaching strategy for laboratory instruction developed by the Biological Sciences Curriculum Study (BSCS) creates a setting in which a question can be formulated that may be answered as a result of laboratory work. Special instruction is given for specific laboratory techniques and skills when necessary but major …


Dubuque Symposium Jan 1975

Dubuque Symposium

Iowa Science Teachers Journal

On Saturday October 25, 1975, the University of Dubuque is planning its 3rd Annual Science and Mathematics Educators' Symposium.


Nsta Bicentennial Essay Award Jan 1975

Nsta Bicentennial Essay Award

Iowa Science Teachers Journal

As part of its Bicentennial Year activities, the National Science Teachers Association is sponsoring a prize competition for papers on the history of science education in the United States.


Coming Astronomical Events, Darrel Hoff Jan 1975

Coming Astronomical Events, Darrel Hoff

Iowa Science Teachers Journal

This fall skies will be dominated by the planet Jupiter. During October and November Jupiter will be rising near sunset and will be visible nearly all night. An interesting activity for beginning students of astronomy is to identify Jupiter's four brightest moons.


Mobile Career Exploration, Steve Halstead Jan 1975

Mobile Career Exploration, Steve Halstead

Iowa Science Teachers Journal

In 1970, the Des Moines Area Community College (DMACC) began a program on its Ankeny campus known as Career Exploration. The idea was to allow people to explore a career by performing representative work samples. For example, a person exploring Medical Laboratory work would have the opportunity to do blood typing, prepare slides, do urinalysis, and prepare smear cultures. These experiences coupled with information about training requirements, job prospects, and salaries, provided a background on which a career decision could be based.


Seeing Sound, Sondra Waltz Jan 1975

Seeing Sound, Sondra Waltz

Iowa Science Teachers Journal

Making sound visible is a useful activity in teaching students the concepts that sound is caused by vibrating objects and that different sounds are caused by different types of vibration. This particular activity makes it possible to see the sounds produced by observing a vibrating, metal plate. As the plate produces sound it vibrates violently in some areas and not at all in other regions. If a small amount of very fine sand or poppy seed is sprinkled on the plate as it vibrates, the seeds will move to areas where vibration is minimal and form distinct distributional patterns on …


Nsta Pit Stop Jan 1975

Nsta Pit Stop

Iowa Science Teachers Journal

You'll be able to make a pit stop at this year's area convention in Indianapolis on October 23-25. While we hope there's no need for "major repairs" you'll be able to refuel your tank of teaching ideas as you see and hear what others are doing.


Environmental Science Units Jan 1975

Environmental Science Units

Iowa Science Teachers Journal

Additional information concerning the following teaching units may be obtained from the Minnesota Environmental Sciences Foundation, Inc.


Team Orientation In The Chemistry Laboratory, David N. West Jan 1975

Team Orientation In The Chemistry Laboratory, David N. West

Iowa Science Teachers Journal

The importance of laboratory experience for students is widely accepted by chemistry educators and usually includes the following behavioral objectives: 1. Training in the scientific method. 2. Developing skills with laboratory apparatus. 3. Learning and applying chemical theory. 4. Communicating laboratory results. It is the opinion of this writer that through a team orientation approach to instruction other behavioral objectives can be attained in laboratory situations that are also useful to students pursuing professional careers in chemistry.


A Checklist In Science Education For Evaluating Student Teaching, James J. Hungerford Jan 1975

A Checklist In Science Education For Evaluating Student Teaching, James J. Hungerford

Iowa Science Teachers Journal

Have you noticed how little some cooperating teachers let their student teachers do? If "learning is by doing," a lot of student teachers aren't learning very much. I've seen student teachers teach only one or two weeks out of nine. Student teachers and supervisors should have a common checklist of activities that they can include as part of the student teaching experience. This may help the teacher who lectures frequently to do something besides talk. The aim would_ be mutual improvement and increased competence.


Officers, Iowa Academy Of Science; Officers, Editors, Regional Directors, Iowa Science Teachers Section; Editorial Review Board Jan 1975

Officers, Iowa Academy Of Science; Officers, Editors, Regional Directors, Iowa Science Teachers Section; Editorial Review Board

Iowa Science Teachers Journal

No abstract provided.


Cover - Iowa Science Teachers Section Officers & Regional Directors - Front Matter - Table Of Contents Jan 1975

Cover - Iowa Science Teachers Section Officers & Regional Directors - Front Matter - Table Of Contents

Iowa Science Teachers Journal

No abstract provided.


Iowa Academy Of Science Celebrates Centennial Anniversary Of Founding, Robert W. Hanson Jan 1975

Iowa Academy Of Science Celebrates Centennial Anniversary Of Founding, Robert W. Hanson

Iowa Science Teachers Journal

April 17-19, 1975, marks the observance of an important historical event in Iowa, for it was in 1875 that Charles E. Bessey and a handful of scientists and medical men conceived the original Iowa Academy of Science. One hundred years have produced fantastic changes in life in Iowa, and the Academy of today has almost forgotten its heritage. It has grown from a small fellowship of men dedicated to furthering scientific work in Iowa to 1,400 members-a sizable cross section of the entire scientific community representing pure and applied research, conservation activity, engineering, economics and all levels of education and …


On The Feasibility Of Coal-Driven Power Stations, O. R. Frisch Jan 1975

On The Feasibility Of Coal-Driven Power Stations, O. R. Frisch

Iowa Science Teachers Journal

The recent discovery of coal (black, fossilized plant remains) in a number of places offers an interesting alternative to the production of power from fission. Some of the places where coal has been found show indeed signs of previous exploitation by prehistoric men, who, however, probably used it for jewels and to blacken their faces at religious ceremonies. The power potentials depend on the fact that coal can be readily oxidized, with the production of a high temperature and an energy of about 0.0000001 megawatt days per gram. That is, of course, very little, but large amounts of coal (perhaps …