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WorksheetsUnknown Water Sample Lab Quiz
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
pH is a measure of the acidity and alkalinity of a solution. In the lab was the unknown sample's pH _______________________.
a)
greater than 7
b)
less than 7
c)
equal to 7
2.
In the United States, most rainwater is moderately acidic due to contamination from acid-forming gases in the air. These gases mainly come from the _______________________.
a)
releasing of acid into rivers by individuals
b)
burning of fossil fuels
c)
process of photosynthesis
3.
Pure water is considered neutral on the pH scale. Neutral on the pH scale is equal to _____.
a)
10
b)
8
c)
7
4.
Conductivity measures how easily electricity flows through water. Based on the conductivity level that your group measured from Bee Creek does ________________________.
a)
electricity flow a great deal
b)
electricity does not flow at all
c)
electricity flow a small amount
5.
Would the conductivity level of the sample of water from Bee Creek compared to saltwater from the Laguna Madre be _____________.
a)
lower
b)
about the same
c)
greater
6.
What would be a possible reason why the water from Bee Creek had a low level of dissolved oxygen?
a)
abundance of aquatic plants and algae using up the oxygen
b)
lack of flow from the water in the creek
c)
the cooler temperatures did not allow the oxygen to dissolve
7.
Bee Creek has a lot of runoff from land by homes, businesses, and other downstream sources which is full of nitrates that can cause algae blooms. What business uses tons of fertilizers a year to keep their grass green to help increase revenue?
a)
golf courses
b)
Lowe's/Home Depot
c)
grocery stores
8.
The color of the water from Bee Creek indicates that the water quality is _________________.
a)
full of fertilizer and/or manure from runoff
b)
good due to its low turbidity
c)
bad due to high levels of acid releasing from decaying matter
9.
Physical indicators of pollution may be noticed by observations of physical characteristics of pollution such as color, foaming, and ___________.
a)
odor
b)
level of CO2
c)
temperature
10.
A stream or creek with __________________________ indicates clean, good water quality.
a)
less variety of insects, with greater abundance of each kind,
b)
finding only one or two kinds of insects in great abundance,
c)
a great variety of insects, with few of each kind,
11.
Of the three types of aquatic plants: floating, submerged, and emergent. Which type would be considered the vast majority of the aquatic plants that we found in Bee Creek?
a)
floating
b)
submerged
c)
emergent
12.
Weather observations and measurements help biologist in the field predict possible conditions to view/observe certain species at a certain time, condition, or location. On Day 1 of our trip to Bee Creek, the outside temperature was closer to __________.
a)
62o F
b)
87o F
c)
92o F
13.
Cloud cover on Day 1 would be considered ___________ from the weather channel app?
a)
mostly cloudy
b)
partly cloudy
c)
clear
14.
How many samples of unknown water did your group suppose to collect from the small 2 gallon bucket?
a)
1
b)
4
c)
7
15.
What observation/measurement that the teacher instructed your group to measure was not on the table/chart included with the lab procedure that you had to write-in below the table/chart?
a)
relative humidity
b)
turbidity
c)
stream flow rate
16.
Some aquatic plants may be beneficial to local or migratory wildlife and aquatic organisms, and therefore, may want to be encouraged to grow. This type of action would be considered?
a)
conservation
b)
plant morphology
c)
pollution
17.
No fish or signs of other vertebrates in the creek, may indicate that the creek is stressed from urban runoff, sewage, and/or chemical toxins entering the stream. While Bee Creek exhibited signs of a variety of fish and vertebrates, what should you do if you believe there is a potential problem?
a)
run a chemical analysis of the water only
b)
run a chemical analysis of the water and contact the TCEQ
c)
call the hotline listed on the lab
18.
Take a good look at the image of this aquatic species that we collected at Bee Creek. What is the common name that you researched online from AquaPlant identification tool created by Texas A&M University?
a)
Smartweed/Water Pepper
b)
Duckweed
c)
Bacopa minneris
19.
What is the common name for this aquatic emergent plant species that we found in Bee Creek from your online research at the AquaPlant website.
a)
Three Square Bulrush
b)
Common Cattail
c)
Water Sedge
20.
Bonus Question!!!!!!
If you know the common name for this species of aquatic plant, then to receive 10 bonus points towards your quiz, go to your Edmodo aquatic science class page and message the teacher the correct common name. Good luck! If you have read this far select the bottom right answer choice to receive credit for this question.
If you know the common name for this species of aquatic plant, then to receive 10 bonus points towards your quiz, go to your Edmodo aquatic science class page and message the teacher the correct common name. Good luck! If you have read this far select the bottom right answer choice to receive credit for this question.
a)
Wrong
b)
Maybe
c)
Close
d)
Trick or Treat?
Reset
