Directions: Circle the word that makes each statement (sentence) true.
1. Pesticides and fertilizers are examples of (point source pollution / non-point
source pollution)
2. Smaller rivers or streams that flow into a larger river or stream are called
(river systems / tributaries).
3. A wetland is an area of land that is covered with a (shallow / deep) layer of
water during some or all of the year
4. Wetlands (produce / reduce) flooding and storm damage.
Place a P in the space if the source of pollution is a point source and an N in the
space if the pollution is a nonpoint source.
P
5. _______
Pipe dumping dirty water into a river.
N
6. _______
Fertilizer from people’s yards.
N
7. _______
Rainwater running off a parking lot after a storm.
P
8. _______
An overflow at a sewage treatment plant.
Divide
9. Label the watershed to the
right with the words below:
Divide
River Mouth
Tributary
Wetland
Floodplain
Main River
Tributary
Floodplain
Wetland
River
Mouth
Main River
area
land
10 A watershed is a (n) ________________
of _____________
surrounding a
___________
of ______________
receives
the _________________.
body
receive that ______________
runoff
water
s
11. The majority of water in Loudoun County flows into which river?
Potomac River
________________________________
12. Which body of water does the Potomac River flow into?
Chesapeake Bay
________________________________
13. Biotic Factors of a watershed include living or non-living parts of the ecosystem?
Living parts
________________________________
14. What are the three types of Wetlands?
Marshes, Swamps and Bogs
________________________________
15. A student recorded the measurements shown below. What is the student
calculating?
Measurement
pH
Temperature
Dissolved Oxygen
Turbidity
Sample
6.5
8C
71%
13 NTU
Water Quality
________________________________
16. A place where freshwater and ocean (salt) water mix is known as:
________________________________
Estuary
Word Bank
for #11
Receives,
body, area,
runoff, land,
water
Individual River Watersheds of Virginia
17. Which watershed is Stone
Hill Middle School located in?
1 – Shenandoah - Potomac
________________________
18. Andy bought a new aquarium and wanted to have the perfect pH of the water. His fish need a
neutral pH but when Andy tested the water, it was in the basic range. Which pH reading below did
Arjun have in his aquarium?
a. pH 7
b. pH 2
c. pH 5
d. pH 9
0
7
14
19. If you test a substance for its pH level, and your pH strip reads the number 4, will the substance
be considered neutral, acid, or base?
Acid
_____________________________________
20. Please identify whether the examples below are point source or non-point source pollution.
Point source (P)
Non-point source (NP)
P Construction
____
____
NP Fertilizers and Pesticides
____
P Pipe dumping dirty water into a river
____
P Waste from Wastewater Treatment Plant
____
NP Residential runoff