This guide contains the procedures and lists of materials needed for 105 aviation activities, demonstrations, and experiments. These activities, demonstrations, and experiments (suitable for students in all elementary grades) are organized into three sections by major topic area: (1) properties of air; (2) factors related to airplane flight; and (3) the importance of weather to aviation. Among the specific topics in the first section are: air weight, pressure, and motion; expansion of air by heating; moisture in the air; and how things float or fly in the air. Specific topics in the second section include: airplane wings and propellers; the jet airplane; how an airplane is controlled; and wind tunnels. Specific topics in the third section include: general weather conditions; wind; temperature; moisture in air; and atmospheric pressure. Also included is an introductory section with drawings showing how the structure of an airplane is similar to the anatomy of a bird and a fish. (JN)