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A Learning Activity Package Approach To Junior High School Science, Jerry Cunningham, Ross Iverson

Iowa Science Teachers Journal

Our goals were to have a low-structured student centered program that made the best use of our physical facility, equipment, and teacher power. As a result, we formulated a design which included a format, procedures, and a set of materials. We feel that our design is adaptable to many situations and may provide some ideas for you. The courses we teach are exploratory. We hope to offer the student a wide variety of new experiences while developing a continuing interest in the study of science and a systematic approach to solving problems.

What Did You Teach Today?, Marguerite Beecher, Willard Beecher

Iowa Science Teachers Journal

An excerpt from Parents on the Run, by Marguerite and Willard Beecher.

A Primary Mammoth Site With Associated Fauna In Pottawattamie County, Iowa, Leo Carson Davis, Ralph E. Eshelman, Jean C. Prior

Proceedings of the Iowa Academy of Science

. In August 1970, an investigation was made of the remains of a mammoth, Mammuthus cf. M. columbi, exposed west of Oakland, in Pottawattamie County, Iowa. A segment of proboscidian tusk, a lower third molar, and additional skeletal fragments were collected from the Wisconsin loess. Associated with the mammoth was a small-mammal fauna consisting of Phenacomys intermedius (heather vole), Microtus pennsylvanicus (meadow vole), and Vulpes vulpes (red fox), extant species with an area of sympatry immediately north of the Minnesota-Canadian border. This fauna, here designated the Oakland local fauna, supports cooler summers in western Iowa during Wisconsin loess deposition.

The Absorption Of Chlorinated Hydrocarbon Insecticides By Frog Skin, Timothy O. Kaiser, Jewett Dunham

Proceedings of the Iowa Academy of Science

The absorption of lindane, heptachlor, aldrin, dieldrin and p, p' DDT by frog skin has been studied. Various experiments indicate that water-soluble fractions of these insecticides are selectively absorbed by the skin. The relative quantities of insecticides absorbed appear to be partially related to their water solubilities. Selected studies using isolated frog skin indicate that the passage of insecticides across the skin does not alter the electrical potential difference across the skin. The observed results are discussed with respect to the accumulation of these chemicals in the tissues of the frogs.

So You Want To Be An Outstanding Teacher!, Barton Philipps

Iowa Science Teachers Journal

Great teachers are great because of the long vacations, short working day, easy work (if you call it work), and good pay. WHAT? Who said that? Truly GREAT teachers rarely take a vacation and work overtime without pay, to guide the students in learning situations. And as for the pay, the garbage collectors in many areas make more than the teachers.

An Analysis And Criticism Of The Life, Writings And Art Of Beatrix Potter, Eileen F. Mardorf

Graduate Research Papers

The purpose of this paper is to study the worth, the kind, and the power of the contributions to children's literature made by Beatrix Potter, creator of the familiar and beloved "The Tale of Peter Rabbit."

The Relationship Between Pond Bottom Type And Growth Rate Of Western Painted Turtles Chrysemys Picta Belli In Iowa, A Preliminary Report, Anthony J. Quinn, James L. Christiansen

Proceedings of the Iowa Academy of Science

Several populations of western painted turtles (Chrysemys picta belli) were sampled during 1970 to determine the possible relationship between turtle growth rate and type of pond substrate. The populations sampled were selected because they existed in lentic habitats that had either highly organic, mud substrates or relatively inorganic, sand substrates. Age determinations based on plastral annuli showed turtles from highly organic substrates to grow more rapidly than those from substrates with less apparent organic matter. Females attained greater size than males in both habitat extremes.

Phyllopods Of Missouri, C. Thomas Wiltshire, Donald H. Hazelwood

Proceedings of the Iowa Academy of Science

Collections of phyllopods from Missouri have been reviewed and a key to those species has been constructed. Species collected in Missouri include Eubranchipus serratus, Thamnocephalus platyurus, Streptocephalus seali, Streptocephalus texanus, Eulimnadia texana, Cyzicus morsei, Caenestheriella belfragei, and Caenestheriella gynecia.

Faunal Analysis Of The Lane Enclosure, Allamakee County, Iowa, John T. Jenkins, Holmes A. Semken

Proceedings of the Iowa Academy of Science

Vertebrates collected from the Lane Enclosure, an Oneota archaeological site, suggest that climatic conditions changed from prairie producing conditions circa 1465 to a more moist, cooler forest situation between 1620 and 1740. A change of this magnitude would place the Canadian biotic province in northeast Iowa late in the occupation period. The site certainly was occupied in fall and winter, possibly in spring and summer. If the small sample from the five radiocarbon dated storage pits is representative, more fur-bearing animals were trapped after French contact.

Bird Believed Extinct Is Sighted In Hawaii

Iowa Science Teachers Journal

The Kauai O'o, a bird believed extinct since 1964, was located deep in Hawaii's Alakai Swamp by a biologist with the Fish and Wildlife Service's endangered species program, who found a nesting pair with two young.

2nd Annual Workshop On Inland Waters Spawns Project On Little Sioux, Milbert Krohn

Iowa Science Teachers Journal

The second annual workshop on Inland Waters held at Lakeside Laboratory at Lake West Okoboji has ended.

Critical Analysis Of Mother Goose, Jeanne Opperman

Graduate Research Papers

Nursery rhymes have been considered trifles until comparatively recent times and consequently were never taken too seriously. It has only been with the increased interest in the science of folk-lore that they have begun to attract attention and their true purpose and meaning discovered.

My curiosity about the origin of Mother Goose rhymes · came through a course taken in children's literature. I wrote a paper at that time on some of my findings and observations. This paper is an enlargement and updating of that project including more information from historical sources, a study of selected foreign editions and some …

Notes On Snail Feeding Behavior Of Anaxjunius (Drury): (Odonata), D. W. Sievers, A. C. Haman

Proceedings of the Iowa Academy of Science

A naiad of Anax junius (Drury), in final instar, preyed upon 47 mature snails, Helisoma trivolvis (Say), during a period of 63 clays. The feeding behavior has potential significance: (1) with respect to biological control of trematode vectoring gastropods; (2) as a mechanism for vectoring trematodes between snails and birds; and (3) in interpreting structural adaptations and perception in immature oclonates.

Analysis Of Red And Yellow Pigments In Two Mutants Of The Siamese Fighting Fish, Betta Splendens, B. Katherine Royal, Gene A. Lucas

Proceedings of the Iowa Academy of Science

Red and yellow pigments of two mutants of the Siamese Fighting Fish, Betta splendens, were analyzed. Chromatographic separations of integumentary material showed that reel mutants have reel pterin and carotenoid pigments. Yellow mutants have both types but not the same specific pigments.

Iowaville: A Possible Historic Ioway Site On The Lower Des Moines River, Dean F. Straffin

Proceedings of the Iowa Academy of Science

In Iowa, the Ioway and Oto Indians bridge the gap between the historically known Indians inhabiting Iowa, and the long cultural continuum delineated by archaeological research on prehistoric sites. Few historic Ioway sites are known today, particularly in southeast Iowa. The recently discovered Iowaville site may contribute substantially to our knowledge of scantily documented Ioway Indians, and may shed light on relationships with the prehistoric Oneota culture.

Faunal Analysis Of The Schmitt Site, Ralph E. Eshelman

Proceedings of the Iowa Academy of Science

A faunal analysis on the animal remains recovered from the Schmitt Site shelter was conducted to supplement the formal archeological report by John L. Reese (Proc. Iowa Acad. Sci., 79 (2): 56-58, 1972. Animal remains suggest that the valley in which the site was situated had permanent water, an oak-hickory forest interspersed with meadows, and prairies above the valley on the flatlands. Little if any climatic change has taken place since the occupation of the site. The shelter probably was never occupied permanently, but was used periodically as a camp.

Winter Movement And Home Range Of White-Tailed Deer At Pilot Knob State Park, Iowa, Michael D. Zagata, Arnold O. Haugen

Proceedings of the Iowa Academy of Science

Home ranges of nine radio-equipped white-tailed deer (Odocoileus virginianus) were determined during the winters of 1969-70 through 1971-72. For does and female fawns, the winter ranges varied from 145 to 307 acres, the major (longest) axes from 1.00 to 1.19 miles, and minimum daily movement from 0.78 to 1.00 mile. Home range sizes of adult does were more consistent than those of female fawns or bucks, varying from 198 to 215 acres. Their major (longest) axes ranged from 1.00 to 1.12 miles and minimum daily movement varied from 0.78 to 0.88 mile. Bucks exhibited the greatest variation in movement, …

Waterfowl Harvest On Keokuk Pool, Mississippi River, 1969 And 1970, Stephen Douglas Wilds

Proceedings of the Iowa Academy of Science

This study was conducted during the autumns of 1969 and 1970 to gain insight into the effects of hunting on the large waterfowl population of the Keokuk Pool. Objectives of the project were to determine: (1) species composition of the harvest, (2) chronology of the kill, (3) significance of the "bonus" scaup season, and (4) species selectivity by hunters. Daily hunting record sheets were maintained by cooperating hunters and provided most of the harvest data. Bag checks and hunting party observations yielded additional information. Over 3, 788 man-days were spent hunting waterfowl on the Keokuk Pool in 1970. Approximately 8,700 …

Summer Range And Habitat Preferences Of Bobwhite Quail On A Southern Iowa State Game Area, Lloyd A. Crim, William K. Seitz

Proceedings of the Iowa Academy of Science

In June through Aug. 1971, 13 bobwhite quail (9 cocks, 4 hens) were tracked by using radio telemetry techniques to determine summer range and habitat preferences. Of the 13 birds tracked on and near the Mt. Ayr Game Management Area, 7 provided movement data for a period of greater than 4 days. Five of the 7 also provided useful information on habitat preferences. Average lineal daily movement was 442 yards. Average daily range dimensions were 248 (length of range) x 78 (width) yards, and average total range dimensions were 805 x 518 yards. Grassy upland areas were the most prominent …

A Preliminary Stratigraphic Study Of The Galena Group Of Winneshiek County, Iowa, C. O. Levorson, A. J. Gerk

Proceedings of the Iowa Academy of Science

The rocks of the Galena Group have proved to be problematic in correlation. This problem is due to a variable lithofacies development. A preliminary investigation, although based upon exposures studied just within Winneshiek County, provides a method for field identification in Iowa of stratigraphic units currently used by the Illinois State Geological Survey within Illinois. Units under consideration at this time are restricted to the Dunleith, Wise Lake, and Dubuque Formations. Methods of identification and correlation employ in part such physical features as sequences of nodular chart bands, discontinuity surfaces, and sparry calcarenite bands. Investigation has disclosed a close relationship …

Effects Of Ddt On The Density And Diversity Of Tardigrades, Gary W. Barrett, Ronald G. Kimmel

Proceedings of the Iowa Academy of Science

Twenty lichen-bearing tree bark samples were collected from DDT sprayed American elm trees (Ulmus Americana L.) in central Iowa. Twenty comparable samples were collected from an adjacent nontreated habitat. A tardigrade density of 4 individuals collected from the treated habitat was found to differ significantly (P < .01) from a density of 97 individuals collected from the non-treated area. Margalef's diversity index (D=S-1/1n N) determinations were found to be 0.00 and 0.44 for the treated and non-treated habitats, respectively. Tardigrade species organization within the nontreated habitat did not differ significantly from that as predicted by MacArthur's broken-stick model, suggesting that tardigrade species occupy contiguous, non-overlapping niches within a …

Bacteriological Quality Of Lake Red Rock And The Des Moines River Between Des Moines, Iowa, And Lake Red Rock, Dean A. Hoganson, Stephen C. Elliott

Proceedings of the Iowa Academy of Science

The bacteriological quality of the Des Moines River from Des Moines, Iowa, to Lake Red Rock and the lake itself were studied on eleven sampling dates from July 1969 to May 1970. The examined river sites consistently had higher EMB plate counts than sites in the lake proper and counts from both river and lake were generally far above quoted standards of water to be used for contact and non-contact water sports. The pH readings were all within quoted normal ranges. The expected effects of seasonal variation and runoff on bacteriological counts were found. Seven isolations of pathogenic, enteric bacteria …

Chronic Centrifugation Of Labyrinthectomized, Growing Turtles, John O. Rice, Charles C. Wunder, Friedrich C. Diecke, Mary M. Clark, Randall K. Kesterson, Jackquelyn G. White, Kathy M. Whiteside

Proceedings of the Iowa Academy of Science

A 1-G space-based centrifuge will be necessary before controlled, bio-medical weightlessness experiments can be performed. Some argue that centrifuges of prohibitive dimensions are necessary. Labyrinthectomized, hatchling, Red-Eared Turtles (Pseudemys scripta elegans) which had grown to a length of 45 mm at 5 G's (200 rpm 10 cm radius) displayed the same greater shell height (21.7 ± 0.4 vs, 20.0 ± 0.3 mm at 1 G) that was observed at 5 G's with nonlabyrinthectomized, centrifuged turtles. If other effects of centrifugation can also be attributed to artificial gravity rather than rotation, a space-based centrifuge radius as short as 10 cm (1 …

Description Of Background For The Children’S Book, Ice Cream Next Summer, Elaine Rose Govern

Graduate Research Papers

Ice Cream Next Summer is not meant to be a trip in nostalgia, although it may well serve that purpose for a reader with first hand experience of ice houses, country stores and their period in American history. It is meant to be, as it was for the author, an investigation into a different time and mood of a slower rural Iowa, a discovery of an out-dated occupational task.

A Study On How The Male And Female Are Portrayed In Children’S Literature, Diane Jean Reed

Graduate Research Papers

To the majority of Americans, women's liberation is a common term among most circles. Just recently another group is capturing the headlines and will be gaining more support with this publicity. This group has coined the name "Feminists on children's Media." Their attacks are becoming greater as more parents, librarians, and concerned citizens become actively involved in the way women and men are stereotyped in both juvenile literature and school textbooks. Previously, critics had concentrated on the intermediate level of reading, while now, more are becoming interested in picture books and beginning readers.

William Faulkner: Innocence, Idiots, And A Moral Order For Yoknapatawpha, Joseph Scott Drips

Dissertations and Theses @ UNI

William Faulkner's Yoknapatawpha County, Mississippi includes characters and situations that are often described as unexpected, abnormal, and even grotesque. Isaac Snopes of The Hamlet, Benjy Compson of The Sound and the Fury, and Jim Bond of Absalom, Absalom! represent three of the most extreme character portrayals found within the works of William Faulkner. They are described as idiots. This paper views these idiots as a continued development of a character type. To complete this study the idiots are described: (1) through the theme of innocence, (2) as a part of the moral order depicted in Yoknapatawpha County, Mississippi, and (3) …

Family Size, Intelligence, And Patterns Of Achievement In Preschool Children, H. Jane Reppas

Dissertations and Theses @ UNI

The purpose of this study was to investigate the relationship of membership in a large or small family to the patterns of achievement as revealed by the results of the subtests of the Iowa Test of Preschool Development (ITPD). Of interest also was the study of the relationship of membership in subgroups based on both race and family size to patterns of achievement.

The subjects of the study were eighty black and white preschool children. There were twenty children in each subgroup small black family, large black family, small white family, and large white family). The subgroups were similar in …

The Effects Of Estrogen On Ionized Calcium In Ovariectomized Calciphylactic Rats, Edward Luverne Hatcher

Dissertations and Theses @ UNI

This research was an attempt to discover the relationship between estrogen treatment and the serum calcium levels in ovariectomized rats. An attempt was also made to study the possible effects of estrogen on calcium deposition during the calcification process by utilizing the calciphylaxis phenomena as a potential biological model. Concentrations of ionized and total calcium in the serum of ovariectomized rats were measured utilizing a calcium selective electrode system and atomic absorption spectroscopy procedures respectively. This was done following 3- and 6-day treatments with estrogen (0.1 µg). The same analysis was used in the calciphylactic treatment procedures both with and …

Only With The Heart -- A Consideration Of Love In The Novels Of John Steinbeck, Dorthy S. Cummings

Dissertations and Theses @ UNI

The consistency with which John Steinbeck evaluated his characters by revealing the nature of their commitments indicates the importance of love as a motivational and thematic force in his work. In every novel that he wrote from 1933 to 1961, the characters were defined by the extent to which they loved and were loved. They were enlarged by belonging to and being responsible for the thing they loved. They were diminished by rejection or failure in love. Love, in the Steinbeck novels, included a wide variety of commitments that shared, in addition to a common function in the lives of …

Biosystematic Evidence For Hybridization Between Lysimachia Quadriflora Sims And Lysimachia Hybrida Michaux (Primulaceae), Michael Owen Dillon

Dissertations and Theses @ UNI

Putative hybrids between Lysimachia guadriflora and L. hybrida were discovered in a marsh in Dickinson County in northwest Iowa. No previous reports of interspecific hybridization between these species were found in the literature. Ecological barriers usually separate the parental species; however, at this population, disturbances by grazing animals and yearly fluctuations in the water level allow them to exist sympatrically. The parental species have concurrent flowering periods, similar floral morphology and pigmentation, and are pollinated by non-specific pollinators. The disturbances also provide a wide range of microhabitats intermediate to those of the parents. Thus, hybridization has resulted because of the …