Paper and Pencil Test: Did You Pollute the Water?
1. A watershed is _________________.
A. a river which flows into the ocean.
B. an stream which flows into river.
C. an area land which surface water flows to a single collection place.
D. an area of land which holds no water.
2. Which of these is not considered water pollution?
F. Chemical runoff
G. Rocks and leaves
H. Oil Spill
J. Litter
3. What would be the most effective method to remove leaves and sticks from water?
A. Use chemicals in the water.
B. Use a net to scoop it out.
C. Use bacteria to break it down.
D. Use activated carbon.
4. Which of the following is a man-made filter?
F. Bacteria
G. Clams
H. Wire grate
J. Plants
5. The starting weight of a filter is 13.12 grams. After water has been run through the filter it is
weighed again and the final weight is 42.51 grams. What is the difference between the
weights?
A. 29.39 grams
B. 28.39 grams
C. 29.30 grams
D. 28.30 grams
6. What would be the best method for removing chemicals from the water?
F. Using a net
G. Using a grate
H. Using activated carbon
J. Using a piece of cloth
Did You Pollute the Water?
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© MathScience Innovation Center 2010
7. Who causes pollution?
A. Farmers
B. Factories
C. Cars
D. All of the above
8. Describe what would happen to the pollution if it entered the watershed at the star.
Image : www.RecycleWorks.org
Possible Answer: The pollution will travel down to the lake because the watershed is like
a funnel._________________________________________________________________
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9. Name a type of natural filter.
Possible Answers: clams, wetlands, or bacteria.___________________________________
10. You have built a filter to remove pollution from the water. Why do you want to weigh your
filter before and after you use it?
Possible Answer: To determine how much pollution the filter removed from the water.
________________________________________________________________________
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Did You Pollute the Water?
http://mathinscience.info
© MathScience Innovation Center 2010