ConcepTest: Glacial Equilibrium

and is replicated here as part of the SERC Pedagogic Service.
Initial Publication Date: May 8, 2006
Question:
If a glacier is in equilibrium (accumulation = ablation), what occurs at the terminus?
a. sediment is deposited
b. the glacier erodes the underlying bedrock
c. neither erosion nor deposition occurs
a. sediment is deposited
b. the glacier erodes the underlying bedrock
c. neither erosion nor deposition occurs
Student Responses:
No data yet. The correct response is a.
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).
References and Notes:
The use of ConcepTests and Peer Instruction is discussed in detail on the ConcepTest page.
McConnell, D.A., Steer, D.N. and Owens, K.A., 2003, Assessment and Active Learning Strategies for Introductory Geology Courses, Journal of Geoscience Education, 51(2), 205-216.
McConnell, D.A., Steer et al., 2006, Using Conceptests to Assess and Improve Student Conceptual Understanding in Introductory Courses, Journal of Geoscience Education, (54(1), 61-68.