ConcepTest: Groundwater Production
and is replicated here as part of the SERC Pedagogic Service.
- A. Sand and gravel on hilltop
- B. Shale bedrock
- C. Sandstone bedrock
- D. Sand and gravel in stream valley
The correct response is D.
Percentage of students choosing this answer. (%Before Discussion/%After Discussion)
in a large (60+ student) 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).