Final answer:
Temple Grandin did not conduct experiments with toy planes; this confusion may arise from mixing her name with historical experiments on flight by the Wright brothers or fictional accounts of flight. Experiments on flight have involved varying factors like airplane weight, lift equations, wing design, and control mechanisms.
Step-by-step explanation:
Temple Grandin is not associated with varying test flights for a toy plane. Instead, the concept of varying weights for test flights can be tied to the experiments of individuals such as the Wright brothers, who conducted careful experiments with kites and gliders to understand how to create controllable airplane designs, and the fictional account of Sister Sara's toy plane with hydrogen balls for overcoming gravity.
Also, students like Sanjay, who create paper airplanes of different weights, contribute to the understanding of flight dynamics. In the provided text examples, variations in test flights have been conducted by changing the weight of the paper in the construction of model planes, and by alterations in wing design and control mechanisms such as wing warping and the use of a vertical rudder by the Wright brothers.