It's a Bugs Life
By: Annie R. , Brittany Q. , Katy T. , and Vanessa T.
Pill Bugs/ Rollie Pollies
Problem: Are Rollie Pollies attracted to lighter or darker places. Their natural environment is usually moist and dark. (comfortable and not spacious).
Hypothesis: If we use a darker construction paper compared to a brightly colored one then the rolly pollies will be more attracted to the dark one over a period of time because their natural environment is dark.
The Manipulated variable in this lab is- The construction paper
The range to be used is.... Time with 30 second intervals for 3 Minutes
Describe how the control would be set up. The same colored paper on both side, we used black construction paper for both of the petri dishes.
Description of 3 constant factors used in this lab.
Time: 30 second intervals (Total of three minutes)
2 Petri Dishes- to show the migration of insects
Rolly pollies-10 for data collection (never changed out)Dark construction paper
Manipulated factor in experiment. Vibrant and dull colored paper.
Object used to time 30 second recording intervals.
Containment unit for pill bugs. Stabilized environment for test subjects.
Manipulated/ Controlled Procedure
Manipulated variable procedure:
The manipulated variable is the construction paper.
First you place either light or dark construction paper underneath one petri dish and then do so as well with the second color of construction paper. This is to see whether or not the color or feel of the environment affects were the rolly pollies rome.
Put five bugs in each petri dish with black paper under both.
Two petri dishes were joined together (hole cut in it) and attached with tape.
Let the bugs roam and see which petri dish they go to even though the color is the same and the texture is the same. (This is for us to see if color actually affects them.)
We recorded data every thirty second for three minutes.
E= ((o-e)^2) / e
Manipulated: The Null Hypothesis is .548 and is below the degree of freedom (1) which is 3.48 which means that it failed to be rejected.
Controlled: The Null Hypothesis is .04 and is below the degree of freedom (1) which is 3.48 which means that it failed to be rejected.