22. Fun on the playground (11:12)

Date:
1947
Summary:
Shows a group of children playing three types of games: those which they invent themselves, those learned under supervision but carried on alone, and those dramatic activities which grow out of school activities.

23. Animals in sub-gravity conditions (14:56)

Date:
1957
Summary:
Surveys the problem of human survival in space. Pictures the firing of an Aerobee containing two monkeys and two mice. Shows the reaction of mice to the reduction of gravity pull as the missile leaves the surface of the Earth. Points out that tests show no reason why man cannot fly 37 miles into the atmosphere. (New Mexico College of A.& M.A.) Film.

24. Digestive systems in animals (14:50)

Date:
1971
Summary:
Shows the variety of ways animals obtain food and their different types of digestive cavities--fully closed, one opening, and two openings. Examines digestive organs in an earthworm, grasshopper, frog, cat, and bird. Looks at peristalsis in a dog's stomach and the action of the villi in a pigeon's small intestine.

31. Danny rebels (07:01)

Date:
1948
Main contributors:
Columbia Pictures Corporation, Robert Cohn, Arthur A. Ross, Nedrick Young, Will Jason, Vincent J. Farrar, James Sweeney, George Brooks, Frank Tuttle, Helen Hunt, Carter De Haven Jr., Russell Malmgren, Irving Klein, Mischa Bakaleinikoff, Wyonna O'Brien, George Coulouris, Ted Donaldson, Sharyn Moffett, John Litel, Ann Doran, Paula Raymond, Peggy Converse, Flame
Summary:
Teaching Film Custodians classroom film of excerpts from the 1948 Columbia Pictures Corporation feature film, "Rusty Leads the Way". When 10-year old Danny decides his parents exercise too strict control, he decides to run away from home. His parents help him pack and bid him farewell. Outside the front door Danny decides he has been too hasty and re-enters the house, unaware of their anxiety. The parents' ruse proves successful.

39. Determining molecular formulas (12:45)

Date:
1961
Main contributors:
Max J. Rosenberg, Ellis Katzman, Elbert C. Weaver, John A. Skarulis, William H. Pasfield, Herman J. Engel, Robert Braverman, Ross Lowell, Geraldine Lerner, Peter Robinson
Summary:
Records an experiment in which the molecular weight of a compound is determined through knowledge of the percentage composition by weight of the compound and application of Avogadro's Law. Animation is employed to show the differences in characteristics of two substances of identical composition through reference to the substances' molecular structure.

40. Hearing deficit and memory (12:48)

Date:
1969
Summary:
One in a series, this film takes a look at memory as it is exhibited by children with hearing deficits. Each child watches the instructor use a pencil to tap blocks in varying sequences, then tries to recreate the unique sequence. Memory has been defined as responses to items from the KNOX CUBES TEST.