Our display is focused on the painted lady butterfly life cycle. Each of us did an experiment to learn more about Painted Lady Butterflies in one part of their life cycle.
Katie wanted to know how the amount of light affects their weight. She started with 4 larvae and placed 2 in each group.Butterflies raised in the light gained more 2 mg weight than those raised in the dark. One uncertainty was that while both butterflies in the dark emerged from their chrysalises, only one of the butterflies raised in the light emerged.
Sophia also started with 4 larvae. Her plan was to see whether the butterflies fed more often in the light or in the dark. All of the larvae formed chrysalises, but none emerged, so Sophia was unable to complete her experiment.
Shanti wondered whether butterflies would favor purple colored sugar water to a yellow solution. She used 3 painted lady butterflies. She observed them feeding on ten different days. Each time, she observed for 20 - 30 minutes. On average, they fed from the purple colored water three times more often than from the yellow colored. One source of uncertainty is that butterflies reached the end of their lifespan at different times, so that might have affected the data near the end of the experiment.