Carondelet Catholic School 2011
Carondelet Catholic School
3210 W 51st St
Minneapolis, MN 55410
Effect of High vs Low Temperature on Hissing Cockroach's Activity
I placed two hissing cockroaches into each of two habitats: one warm (25 degrees Celsius) and one cool (15 degrees Celsius). I tracked and timed each cockroach for 2 minutes to determine its speed in cm/min. Results based on 8 trials showed that the average speed in the warmer room was 5 cm/min compared with 2 cm/min in the cool room. One bias that affects my certainty about the results is that both cockroaches in the warm habitat are female while both cockroaches in the cool habitat are male. If females travel faster than males, then the difference may not be due to the temperature difference.
Praying Mantis and its Community
Colin K, Sarah H
Colin raised a praying mantis nymph for two months, collecting daily observations. This observational study was the inspiration for Sarah and Colin's dramatic three-dimensional model (37" X 72" X 30") of the praying mantis. The display includes an informational poster about one observational study: praying mantis and it includes Sarah's lady bird beetle experiment.
How does caffeine affect ladybird beetle's reproduction. For five weeks, Sarah fed both groups soaked raisins, but one set of raisins was soaked in coffee, the other in water. During weeks 3 and 4, beetles without the coffee laid more eggs (80) than those with coffee (30). One source of uncertainty is that she was not sure that she had an equal number of females in both groups.
The Effect of Dark and Light on Bess Beetle Burrowing
I studied how much Bess Beetles would burrow when exposed to light after being kept in almost total darkness. I covered one cage with a cloth for 23 hours/day and compared burrowing with that in a cage exposed to 6 hours of direct light. Results support the hypothesis that more light increases burrowing. There were differences between the groups that may affect the results: beetles in the dark cage laid eggs. I learned that Bess beetles are a hardy workhorse in the insect work. They feed off rotting wood, which makes them valuable decomposers.
Which nectar do Painted Lady Butterflies Prefer?
I wanted to find out which nectar Painted lady butterflies preferred in their cage. Five butterflies in a cage had a choice of honey water or sugar water. My results showed that the butterflies preferred the honey nectar over the sugar nectar: 14 visits to 10. Changing cage sizes, variation in sponge size and in measuring the sugar are possible errors. What I learned: Painted Lady butterfly is extremely beautiful and lives all over the world! They will nervously, and vigorously shake their wings when frightened or alarmed.