LAB: The Impacts of Road Deicers on the Environment: Protozoans, part II: Data/Analysis
LAB: The Impacts of Road Deicers on the Environment: Protozoans, part II: Data/Analysis
ONLINE VERSION: DATA ANALYSIS
Introduction: Two weeks ago, you set up your experiments to determine if different commercial deicers have any effect on the protozoan community. For this week, it was intended for us to you look at samples through a microscope and identify any protozoans present; unfortunately, the weather did not cooperate, and only a few of us were able to check our experiments.
Recall the different treatments that were set up last week (in addition to the control):
De-Icer to add to your flask |
Claims of product/environment |
Melts ice at what temperature |
None (control) |
n/a |
n/a |
NaCl-based de-icer solution |
No claims |
10-15 F |
MgCl-based de-icer solution |
Plant-friendly |
-20 F |
CaCl-based de-icer solution |
environmentally-friendly |
0 F |
HCOONa/urea-based de-icer solution (sodium formate/urea) |
Pet-friendly (doesn’t burn paws/non-toxic if paws licked) |
-2 F |
sand |
Environmentally-friendly |
Does not melt ice, rather serves as an abrasive |
Beet juice mixture |
Environmentally friendly |
20 F |
Directions for this activity: Review the Results section, the data collected by the students who were present, recorded in Tables 1-7 pages 2-3, and answer the questions in the Conclusions section on page 3.
DETAILED ASSIGNMENT
