Browse Items (37 total)

Explains that bacteriology is an area in the field of biology concerned with microscopic forms of life. Shows by photomicrography examples of protozoa, algae, molds, yeast, and bacteria, and through animation gives understandings of the minute size…

Presents many kinds of bulletin board--how they are constructed and how they can be used. Shows boards made of wallboard, cork, metal, screen, ropes, and peg boards. Demonstrates the use of golf tees hangers, and strings on peg boards. Illustrates…

Develops an understanding of the four basic requirements for a controlled experiment. Presents a series of experiments designed to answer the question "Do seeds need water to sprout into plants?" Encourages viewer participation by inserting…

Shows the importance of corn as an economic commodity. Illustrates the nature of the corn belt of the United States by utilizing sixty-one widely scattered locations. Emphasizes the role of corn as a food crop for early pioneers and as a factor in…

Shows a skilled ceramist applying designs on several ceramic pieces prior to final firing. He uses the clay itself, a comb, a piece of burlap, or clay stamps to create textured designs. Other decoration methods illustrated include colored glazes,…

A skilled potter demonstrates the four methods of glaze application: dipping, pouring, brushing, and spraying. Specific techniques and good craftsmanship are emphasized. Proper preparation of a piece for glazing and precise finishing before firing…

Shows the external anatomy of a living crayfish and using a freshly anesthetized specimen points out its internal anatomy by systems. Presents its hard exoskeleton, body divisions, and the jointed nature of its appendages. The exoskeleton is removed…

Compares two dairy farms--one in Southeastern Wisconsin and the other in Central New York State. Shows the land use and cultural practices which reflect adaptation to such elements of the physical environment as topography, sol, precipitation,…

Presents a view of this student in a number of school situations, including working with his fellow students in his social studies class, participating in an English composition class, practicing conversation if French class, working a problem in…

Uses live and freshly anesthetized earthworms to point out external features, action of the muscular system, the internal organs, and the reproductive process. The five aortic arches are seen in action and the process of digestion is followed as…