River Web Water lab Report 2010
River Web Tour Questions
Q1. Are the graphs related? What is your evidence?
Q2. Describe the relationship between Nitrogen Concentration and Precipitation.
Q3. Why are they related?
Q4. Describe the relationship between precipitation, run-off and nitrogen.
Q5. Why do you think this station is so high in nitrogen?
Q6. Which land-use area upstream from station 7 do you think might be most responsible for the high
nitrogen levels?
Q7. Describe how nitrogen levels have been affected by the improvement.
Q8. Describe how D.O. and Water Temperature are related.
Q9. Which season of the year and which days (from graph) would you expect fish to be most stressed? Why?
Q10. Describe how D.O. has been improved
Q11. How does D.O. at Station 0 compare to Station 3? Why do they differ?
Water Cycle Review
1. The _______heats the water in the _______ (or other large body of water).
2. Water _______rise, _______and form _______.
3. Water vapor emitted from plant leaves is called _______.
4. Water vapor cools and _______on tiny dust particles in the air.
5. _______are made up of condensed _______.
6. _______comes from clouds in the form of rain, hail or snow (depending on the temperature).
7. _______is due to excessive rain or melting snow.
8. Runoff can be seen flowing over the _______, eventually entering a _______.
9. Some of the _______ _______or infiltrates the soil.
10. Water that has reached the _______is called_______ .
11. Groundwater _______streams.
12. _______ eventually reaches the _______ (or other large body of water) due to gravity.
River Web Water lab Report 2010
Jigsaw 1
(Answer questions 1 & 2, fill in the chart for YOUR land use area then write your own answer for 3 & 4.)
1. The graph of air temperature demonstrates seasonal variation. Describe the evidence that supports this claim.
2. What is the relationship between water temperature and air temperature? Describe the evidence that supports your
claim.
Table of Averages of Indictors/Data Analysis
Station
Land
use
Urban
Area
0
Pristine
Difference
% Change
Order
6
Run Off
M3
Sediments
Mg/L
Water
Temp ̊C
D.O.
Mg/L
21938.77
35.47
11.29
8.75
4.57
1797.54
20141.23
1120.49
5
2.63
32.84
1248.67
6
9.04
2.26
25
2
10.41
1.66
15.95
1
0.79
3.78
478.48
3
Heavy
Metals
Mg/L
Toxins
Mg/L
0.09
0.05
2.02
0.01
0.08
839.22
4
0.00
0.05
0.00
2.02
Nitrogen Phosphorus
Mg/L
Mg/L
3. Hypothesize why you see these changes. Predict where these changes might be coming from.
Sediment and Run Off may be higher in Urban areas due to an increase in surfaces that drain water quickly
(sidewalks and asphalt) and a lack of plants that secure soil and hold moisture. Phosphorus may be increased due to
fertilizers, pesticides, cleaning compounds, and wastes.
4. In a few sentences describe the quality of water at your station vs. the water quality at the pristine forest.
DO and water temp are slightly off. Nitrogen, phosphorus and sediment are more markedly increased. Water
quality in Urban areas is poor compared to the pristine forest.
Jigsaw 2
Individual Charts: % Change
(Fill in the charts for the two indicators that were assigned to you. You may delete the others. Give your individual
response and write your own paragraph.)
Nitrogen
Station
% Change
Order
(1) Logged Forest
(2) Mixed
Agriculture
(3) Residential
(4) Commercial
Industrial
(6) Urban
478.48%
River Web Water lab Report 2010
Phosphorus
Station
(1) Logged Forest
(2) Mixed
Agriculture
(3) Residential
(4) Commercial
Industrial
% Change
Order
(6) Urban
839.22%
Heavy Metals
Station
(1) Logged Forest
(2) Mixed
Agriculture
(3) Residential
(4) Commercial
Industrial
% Change
Order
(6) Urban
0.05%
Toxins
Station
(1) Logged Forest
(2) Mixed
Agriculture
(3) Residential
(4) Commercial
Industrial
% Change
Order
(6) Urban
2.02%
Water Temperature
Station
(1) Logged Forest
(2) Mixed
Agriculture
(3) Residential
(4) Commercial
Industrial
% Change
Order
(6) Urban
25%
Dissolved Oxygen
Station
(1) Logged Forest
(2) Mixed
Agriculture
(3) Residential
(4) Commercial
Industrial
% Change
Order
(6) Urban
15.95%
Run Off
Station
(1) Logged Forest
(2) Mixed
Agriculture
(3) Residential
(4) Commercial
Industrial
% Change
Order
(6) Urban
1120.49%
Sediments
Station
% Change
Order
(1) Logged Forest
(2) Mixed
Agriculture
(3) Residential
(4) Commercial
Industrial
(6) Urban
1248.67%
Individual Response:
Write a paragraph in which you describe how land use impacts water quality as demonstrated by these two indicators.
River Web Water lab Report 2010
Jigsaw 3
(Please complete all charts with the help of your partners)
Chart 1: Indicator relationships using scatter plots
Sub Group 1: Sediment, Run Off, Heavy Metals and Toxins
Station
6
Water
Temp vs.
Air Temp
Sediments
vs.
Run Off
Nitrogen
vs.
Sediments
(+,-)
(S,W, NC)
+S
+W
+S
Phosphorus Sediments
vs.
vs.
Sediments Precipitation
+W
+W
Sediments
vs.
Air Temp
Heavy
Metals vs.
Sediments
Toxins
vs.
Sediments
NC
+S
+W
Sub Group 2: Water Temperature, Dissolved Oxygen, Nitrogen, Phosphorus
Station
6
DO vs.
Water
Temp
Phosphorus
vs. Water
Temp
Sediments
vs.
Run Off
Nitrogen
vs.
Sediments
Phosphorus
vs.
Sediments
Run Off
vs.
Precipitation
Nitrogen
vs.
DO
Phosphorus
vs.
DO
(+,-)
(S,W, NC)
-W
NC
+W
+S
+W
+S
-W
-W
Chart 2: Indicator relationship Comparison
Strong Relationship/Sign (+,-)
Weak Relationship/Sign (+,-)
No Relationship
Water Temp vs. Air Temp(+)
Nitrogen vs. Sediments(+)
Heavy metals vs. Sediments(+)
Run Off vs. Precipitation(+)
Sediments vs. Run Off(+)
Phosphorus vs. Sediments(+)
Sediments vs. Precipitation(+)
Toxins vs. Sediments(-)
DO vs. Water Temp(-)
Nitrogen vs. DO(-)
Phosphorus vs. DO(+)
Sediments vs. Air Temp
Phosphorus vs. Water Temp
Land Use Concept Map: How Does Your Land Use Impact Water Quality?
Use Smart Draw to create your concept map – Go to http://www.smartdraw.com/downloads/ for a free download
River Web Water lab Report 2010
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