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Articles 1021 - 1050 of 2306
Full-Text Articles in Science and Mathematics Education
Geology Is: A Geosciences Program For High School Students, Rion D. Turley
Geology Is: A Geosciences Program For High School Students, Rion D. Turley
Iowa Science Teachers Journal
Project "Geology Is" arose out of a desire to fill an apparent gap in science education at the secondary level. It was noted that, over the years, the traditional secondary science sequence of biology, chemistry, and physics has several very weak aspects.
A Look At Copper, Erwin Richter
A Look At Copper, Erwin Richter
Iowa Science Teachers Journal
The study of copper and its compounds is among the more aesthetically pleasing aspects of chemistry. Copper compounds range in color from white to black, and include virtually all colors of the visible spectrum. The following exercise is designed to explore some of the chemical properties of copper and copper compounds.
Dates To Remember
Iowa Science Teachers Journal
A listing of dates for a variety of science events.
A Word About Wood, H. M. Barnes
A Word About Wood, H. M. Barnes
Iowa Science Teachers Journal
The annual per capita consumption of wood in the United States is 65 cubic feet. This is equivalent to seven trees, ten inches in diameter and fifty feet tall for every American.
Corn To Alcohol, A. C. Haman
Corn To Alcohol, A. C. Haman
Iowa Science Teachers Journal
The combination of critical fuel shortages and zooming oil prices have led to the possibility of converting corn to an alcohol fuel, a process that has been known for some time. The benefits offered by an alcohol-fuel industry are substantial, among a few are: the fuel source is renewable each year; domestic alcohol fuel reduces dependence on oil imports; and fuel alcohol burns clean reducing pollution. The economic impact to the state economy is obvious.
The Earth's Gravity Field, Robert S. Carmichael
The Earth's Gravity Field, Robert S. Carmichael
Iowa Science Teachers Journal
Curiously, books in Iowa have more "gravity" effect in them than even TIME suspected. In fact, due to gravity effects in the State, a) the same book would weigh less in Des Moines than it would in the town of Anita, 50 miles (80 km) to the west. b) a quick way to lose weight is to travel from the north-central Iowa town of Blairsburg to the nearby town of Wellsburg.
Preserving Snowflakes
Iowa Science Teachers Journal
One of the best responses to articles we have published has been Snowflakes You Can Keep, Vol. 14(3):24, 1977.
Iowa Diatoms: Part Ii (Preparation), James Hungerford
Iowa Diatoms: Part Ii (Preparation), James Hungerford
Iowa Science Teachers Journal
This is the second in a series of articles on Iowa diatoms. The first article appeared in the Dec. 1978 issue of the Iowa Science Teachers Journal and dealt with the collection of diatoms in the field. After collecting diatoms in the field and labeling the collection jars properly, you must now prepare the diatoms for study in the laboratory. This article outlines the basic techniques for preparing diatoms for laboratory study.
Warning - Strong Oxidant!, Howard Lyon
Warning - Strong Oxidant!, Howard Lyon
Iowa Science Teachers Journal
Even the most casual survey of the uses of hydrogen peroxide would demonstrate that it is considered to be one of the safest oxidizing reagents available. Hundreds of useful commercial applications employ dilute H202 - water mixtures for bleaches, bubbling agents, mild cleansers and other gentle oxidation processes. The use of hydrogen peroxide in the teaching laboratory is recommended as far safer than the use of the pennanganates, nitrates, dichromates, chlorates and perchlorates which might otherwise be employed. The 3% solution is used to clean open cuts or employed as mouthwash. Analytical laboratories, employing higher concentrations, would …
Decapods Of Iowa (Part Ii), Gary Phillips
Decapods Of Iowa (Part Ii), Gary Phillips
Iowa Science Teachers Journal
Since the classic work of T.H. Huxley in 1880 on The Crayfish, decapods have been widely used in teaching elementary zoology, as well as for research along more advanced lines. Traditionally decapods have been used to demonstrate various characteristics typical of arthropods in general. Among these are the open circulatory system, ventral nervous system and segmentation.
Solar Energy Packets
Iowa Science Teachers Journal
DOE Solar energy Curriculum for Grades 7-12. This program consists of 43 solar energy activities arranged in five packets.
Energy Quiz
Iowa Science Teachers Journal
America, with about 6% of the world's population, consumes about 30% of the world's available energy. The average American citizen consumes about seven times the energy of other world citizens. But what does the average citizen know about this energy that is used in a too casual manner?
Geologic Field Trips
Iowa Science Teachers Journal
Fossil keys, stratigraphic maps and discussion questions have been developed for specific exploration sites in Black Hawk County.
New Iowa Bird Book
Iowa Science Teachers Journal
Gladys Black has just published a book on Iowa Birds.
Perpetual Motion
Iowa Science Teachers Journal
Fig. 1 shows a device that performs almost like a perpetual motion machine.
Iowa Autumns
Iowa Science Teachers Journal
Driest Month (State Average): 0.02" - Oct. 1952
Free Films
Iowa Science Teachers Journal
A catalog of free films and filmstrips on solar energy is available from the National Solar Heating and Cooling Information Center.
Tetrahymena: Cell For All Seasons, Eugene C. Bovee
Tetrahymena: Cell For All Seasons, Eugene C. Bovee
Iowa Science Teachers Journal
Certain protozoa have often been the cellular animals of choice for research and teaching in the past 100 years. In 1926, Asa Schaeffer (20) placed "the amoeba" at the pinnacle for animals that serve as primary research tools, along with the dog and the frog. Paramecium (one or more of its species) and Euglena (one or more of its species) are other protozoa (the latter, also an alga) well-known and oft-employed in both teaching and research. In the past 40 years, however, another protozoan has gained prominence in research, equalling - even superseding - the three mentioned above. Its generic …
Safety In Iowa Science Programs: A Status Report, Jack Gerlovich, Frank Starr
Safety In Iowa Science Programs: A Status Report, Jack Gerlovich, Frank Starr
Iowa Science Teachers Journal
School science laboratories are active sites of learning. They may also be areas of potential danger from fire, explosives, caustic chemicals, poisons, noxious fumes, and projectiles. Science teachers are charged with the responsibility of establishing an environment in which students shall have relevant, practical science experiences. In addition, certain segments of the subject matter will require that students develop particular attitudes, knowledge, and skills. Inevitably students will periodically be exposed to potentially dangerous situations.
Energy Films
Iowa Science Teachers Journal
A digest of over 160 energy-related films has been compiled by the New York State Alliance to Save Energy.
Energy Education Packet
Iowa Science Teachers Journal
An energy education packet which includes more than 25 simple projects for students about different forms of renewable resources such as wind, water and biomass, plus reading lessons and background supplies is available from the Center of Renewable Resources.
Energy-Environment Source Book
Energy-Environment Source Book
Iowa Science Teachers Journal
Available from NST A, this population reference book has been reprinted.
Polychrome Solutions, Joe Moore
Polychrome Solutions, Joe Moore
Iowa Science Teachers Journal
Chemical changes are often accompanied by color changes. This can be illustrated by the following demonstration.
Stimulating Interest In Iowa Secondary School Science, Jack Gerlovich, Joe Moore
Stimulating Interest In Iowa Secondary School Science, Jack Gerlovich, Joe Moore
Iowa Science Teachers Journal
America, today, is a highly technological society, based heavily upon knowledge of scientific concepts and principles. Without knowledge in basic science, and its processes, living with and understanding technology cannot be accomplished. More specifically, alienation of the lay public from the scientific community and scientific endeavors may result.
Rubber Bands, Genella Shea Gerardi
Rubber Bands, Genella Shea Gerardi
Iowa Science Teachers Journal
Have you ever had students shooting rubber bands while they were supposed to be doing something else? Why not channel this behavior into a learning activity?
A Review, James J. Hungerford
A Review, James J. Hungerford
Iowa Science Teachers Journal
The Learning Corporation of America has released a film of interest to science educators whose assignment includes sex education. The title of the film is How to Say No to a Rapist and Survive.
Dates To Remember
Iowa Science Teachers Journal
A listing of dates for a variety of science events.
Prairie Publication
Iowa Science Teachers Journal
The Fifth Midwest Prairie Conference, which was held in Ames in August 1976 has now published its proceedings. The Proceedings of the Fifth Midwest Prairie Conference contains over 200 pages of information on ecological studies, restoration and management of Midwest prairie species and prairies centered on Iowa.
Free Films
Iowa Science Teachers Journal
The following films are available from the E. I. DuPont De Nemours & Co., Inc.
Earthquakes
Iowa Science Teachers Journal
Earthquakes is a publication produced by the Kansas Geological Survey.