University of Minnesota

Ecology Fair University of Minnesota Monarch Lab

Abstracts from Washington Technology Magnet MS 2017

Washington Technology Magnet MS
1041 Marion St
St. Paul, MN 55117

Year: 2017
Teacher(s): Stephanie Erickson

Bacteria in Runoff

Durate W, Kao Nou X

We are interested in the amount of bacteria in a runoff pond and stream. We also wanted to look in the  ponds/streams for the affects the dissolved oxygen, transparency, bacteria, and algae.   We found out that the pond tested positive for bacteria.   The runoff probably had carried dead organic material on the way to the pond/stream.  Some of that organic material is dog feces causes the bacteria in the pond. Having nitrate in ponds/streams affects the dissolved oxygen, transparency, bacteria, and algae. When there's lots of nitrate, there's not enough of oxygen which affects dissolved oxygen in the pond/stream, and if there's not enough dissolved oxygen animals in water may not survive and die.

Humidity and Temperature and Ground Cover

David P

The reason we did this experiment is because we wanted to find out how humidity and the temperature effect the ground cover. What we found out is that for every location it is different. for the dead tree the temperature and the humidity the percentage is: 75 0 f and 52% and for the Type of tree that was close to the dead tree was the maple and its ground cover was 15% For the fungi tree the humidity and the temperature was 71.4 o F and 56% humidity, for the type of tree the walnut hickory the percent of ground cover was 2%.

Location of trees and their size.

Madeline L

My group designed an experiment to see if a tree on the hill behind our school was affected by its location, specifically how the circumference of the tree changed and how the temperature of the soil at the base of the trees differed. To see if location did have any impact, we ran a study looking for any changes in circumference or soil temperature from the bottom of the hill compared to the top. 

Macroinvertabrates in a pond

Isaiah L, Win Eh A, November H

We wanted to check what things were affecting the pond and its health so we split into different groups like macroinvertebrates, pH, and other test we could connect in teams. We were shown a pond by our teacher and wanted to know what was in the pond and what was affecting it. Our team first picked what we would study and that was macroinvertebrates in the pond, then we got tools, and then we went out to the pond and scout up macroinvertebrates in different places. The result we got was we found macroinvertebrates but not lots of different kind I think we found 3 different kinds but it is enough to show the pond is healthy.

Macroinvertabrates in runoff pond

El T, Kler Tha B, Katie L

We studied macroinvertebrates whether if there are more or less in different kind of places. we found more macroinvertebrates in the pound because there was more nitrate, phosphate, and transparency in the pond.

Moss on trees

Zoov Y

My table members and I researched about the amount of light affecting the growth of moss on trees. Minnesota is has over 500 species of moss. Moss growing is not harmful to us at all but it shows us that the plant might not be healthy as it’s supposed to be. Which is what we need to focus more on. The main causes of moss to grow is the humidity, health of the plant, damp areas, and still conditions. Since my group and I wanted to test if the amount of sunlight will affect the growth of moss.

Soil Moisture and Ground Cover

Rosemary R

In our experiment, we measured soil moisture and percentage of ground cover in order to see if there is a correlation between the two variables. We designated the moisture of the soil as the independent variable, and the percentage of ground cover was the dependent variable. In addition, we hypothesized that there would be a positive correlation: that if there was more soil moisture, then there would be more ground cover. My group and I measured the two variables at three different altitude points. Over the course of the experiment, we determined that there wasn't’t a detectable correlation between the two variables. However, given that there are numerous different environmental factors, it would not be accurate to say that there is no correlation definitively.

Sunlight and Soil Moisture

Camille D

We researched how the amount of sunlight and amount of soil moisture affect a tree's health, for this study we used two different types of trees (dead and living) and compared the living conditions for each tree. After only one day of testing and finding averages the results were that trees with less sunlight and moisture survive better than trees with more.

Trash is the forest

Jet M

We study about how much trash in a area and how types of different plants and how much trash can affect the number of plant types like in the rotten tree trunk there were more trash but less types of plant while the other had more plant. We used measuring tape and flags to mark each corner of the area we were sampling and the result of us doing that we ten pieces of trash for the first area and 1 piece of trash in the second area. 

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