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This Number Of Science Bulletin Is The Last Number For The School Year 1929-30.

Science Bulletin

This number of Science Bulletin is the last number for the school year 1929-30. We hope that we have been able to give the high school teachers of Iowa material that they have found interesting and helpful. The responses that we have had from you lead us to believe that we have been able in some measure to do this.

Title - Masthead

Science Bulletin

A Service Bulletin for Teachers of High School Science.

The "Male-Water-Sheep"

Science Bulletin

The "male-water-sheep" which turned out to be a hydraulic ram may after all have its biological affinities.

At The Close Of The School Year You Will Be Making Your Plans For The Summer.

Science Bulletin

At the close of the school year, you will be making your plans for the summer. Teachers have an excellent opportunity during the summer to advance themselves professionally by study and travel. Most of our universities and colleges have summer schools planned especially for teachers and I know of no better way to spend at least a part of your summer than at one of these.

Science Bulletin, Vol.2 No.9, May 1930 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Chemical Lecture Experiments, R. W. Getchell

Science Bulletin

Lecture experiments demand more time, require higher technical skill, and afford greater pupil interest than any other phase of chemistry teaching. As a corollary, we may add that they are most neglected, but if you name the teachers who are noted for their interesting, instructive, and skillful classroom demonstrations, you are calling the roll of chemistry teachers of the first rank.

The Farm Apple Orchard, Winfield Scott

Science Bulletin

Apples can be produced in Iowa on a profitable basis. They are a wholesome and a health producing food. They carry important minerals and vitamins. They are refreshing and palatable. Good apples will sell well. Good apples are those which possess quality, flavor uniformity, and which are free from disease and insects.

Suggestions For Health Classes, Belva L. Swalwell

Science Bulletin

a. If one has been exposed to smallpox should he be vaccinated at once? Smallpox, I; Smallpox, III.

b. What factors should one look for in buying a new pair of shoes? Shoes, I.

c. A child has been bitten by a dog which is suspected of being mad. How can it be determined H the dog really has rabies? What should be done with the dog? What should be done with the child? Rabies, III; Rules and Regulations of the State Board of Health, III.

Science Bulletin, Vol.2 No.8, April 1930 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

The More Scientific Tests, E. O. Finkenbinder

Science Bulletin

Scientific testing has contributed several things that may be recalled here with profit. First of these, it has given us much more reliable measures of pupils' abilities and accomplishments than by the "old-type" tests we were able to get. Reliability of a test refers to its accuracy in measuring. It means that if a written test shows a pupil to have a score of, say, 85, another pupil's written test of equal ability the same score, and it will give the same score whether marked by one teacher or any other.

Magnetism, L. Begeman

Science Bulletin

Interstellar space is characterized by the existence of three all pervading fields of force denoted respectively as gravitational, electric, and magnetic. Einstein in his general theory of relativity demonstrates mathematically that these three force fields are but different aspects of one universal field. To the average man, however, these three natural forces will always appear as separate distinct entities.

Title - Masthead

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Science Bulletin, Vol.2 No.7, March 1930 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Newton's Laws Of Motion, L. Begeman

Science Bulletin

Newton's second law of motion states the relation between force and momentum. From this law we learn how to measure a force in terms of the momentum it creates in a unit of time or a second.

Suggestions For Health Classes, Belva L. Swalwell

Science Bulletin

The classes in high school conducted primarily for the purpose of imparting health knowledge which will lead to action are confronted with the problem of securing suitable material for supplementing the textbook work.

Winter Birds Of Iowa, O. R. Clark

Science Bulletin

The study of birds should certainly form an important unit of every course in high school biology. Furthermore, this study should be continued through the entire school year in order to secure the most desirable results. The fall is an excellent time to begin the study because the number of birds to be found is not so great as to ca use confusion and the students will be able to become familiar with the means of identification and the common recognition marks of many of our common birds.

Title - Masthead

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Misleading Terms, Alison Aitchison, Marguerite Uttley

Science Bulletin

"Tradition is the enemy of progress." Dr. Julius Klein, Assistant Secretary of Commerce, advises young people to adopt this as their slogan if they wish to make for themselves successful pl aces in the business world. To train these embryo business men and women is the business of the public schools. Geography contributes to training for commerce more than any other science. Have geography teachers adopted the same slogan?

Title - Masthead

Science Bulletin

A Service Bulletin for Teachers of High School Science.

A Correction

Science Bulletin

In the December Science Bulletin in the article by Professor O. B. Read on "Exhibits As An Aid in Science Teaching", the J. T. Baker Chemical Co. was listed as having signified its willingness to supply exhibit material.

It Is Now Time To Commence To Keep Your Bird Records

Science Bulletin

It is now time to commence to keep your bird records in order to follow the spring migration of birds.

Science Reading

Science Bulletin

One of the purposes of science teaching in the high school should be to train the pupils to appreciate and to read intelligently and critically the articles of scientific interest that appear in the public press.

Newton's Laws Of Motion, L. Begeman

Science Bulletin

In the study of Newton's Laws of Motion, it is more important to understand the concepts they embody than to be able to repeat them verbatim. Too frequently, in the teaching of high school physics, memory work is allowed to take the place of concrete information. This is particularly true with reference to these basic mechanical concepts of the physical universe known as Newton's Laws of Motion.

A Classified Bibliography Of References For General Agriculture, Winfield Scott

Science Bulletin

IV. BEEF CATTLE

A. Breeds and History

Health And Cleanliness, H. Earl Rath

Science Bulletin

A short time ago there was presented in the columns of this paper an article dealing with the methods of motivating a health program. This article dealt with the methods of gaining an interest in the subject of health. Once having gained this interest a program of education must be brought forward. Such a program may not be elaborate, in fact probably should not be. It is the opinion of the writer that most programs of health attempt to cover too wide a field and do not leave sufficient definite impressions.

The Air We Breathe, S. F. Hersey

Science Bulletin

In addition to the simple experiments already suggested attention is called to others which will show the common constituents of the air.

In A Recent Study Concerning The Status Of Science, The Following Interesting Facts Are Noted

Science Bulletin

In a recent study concerning the status of the sciences in Iowa high schools made here at this college the following interesting facts are noted as to the sciences offered.

Science Bulletin, Vol.2 No.6, February 1930 [Complete Issue]

Science Bulletin

A Service Bulletin for Teachers of High School Science.

Household Insects, Roy L. Abbott

Science Bulletin

It was said above (see November Bulletin) that practically every animal is attacked by one or more kinds of insects. Man constitutes no exception to this statement, and it is my purpose in this article to deal with a few of the insects commonly found in or around our homes. Perhaps the most familiar of all household insects is the housefly.

A Classified Bibliography Of References For General Agriculture, Winfield Scott

Science Bulletin

III. FORAGE CROPS

A. Legumes.