ConcepTest: Locating Wells
Question:
Liquid hazardous waste is disposed of by pumping it down injection wells. Which well location would be the most suitable to use for an injection well?
a.)
b.)
c.)
a.)
b.)
c.)
Student Responses:
The correct response is A.
Percentage of students choosing this answer. (% Before Discussion/% After Discussion):
A. (49%)
B. (43%)
C. (8%)
in a large (> 60 students) earth science class
If you would like to help acquire more Before and After statistics for this example, please contact the authors (see link at top of page).