Early elementary school children might compare their results to their peers, or challenge peers to a race.

Early elementary aged children can guess which of two copters will fall the fastest, and then test their ideas in a 'copter race'.
Early elementary aged children may make guesses to explain why the copters fly differently, depending on their design.
Early elementary aged children can also try to design a copter that will fly in a way that meets a goal that they set.
Early elementary aged visitors can see connections between the copter design they choose and the affects of that design on how the copter spins.
Early elementary aged visitors can draw conclusions based on their observations.

Early elementary School children can create their own wing designs, and are not limited by the patterns provided on the template.
Early elementary school children are also developing their understanding of the importance of controlling variables in experiments, and can begin to design experiments of their own.
Grownups can learn about ongoing developmental research that addresses children's ability to control variables in the Learning Through Play area of the Living Laboratory.
Early elementary aged visitors are adept at using scissors and have developed the fine motor skills necessary to manipulate the paperclips.
Early elementary aged visitors also begin to understand how time is measured and can practice using a stopwatch to count how many times their copter spins in a given time-frame, or how long it takes their copter to reach the floor.