Cuesta College, San Luis Obispo, CA
Students are assigned to read online articles on current astronomy events, and take a short current events quiz during the first 10 minutes of lab. (This motivates students to show up promptly to lab, as the time cut-off for the quiz is strictly enforced!)
Jessica Fagan, "ANU Researchers Confirm Earth's Inner Core is Solid" (October 19, 2018)Analysis of faint "J waves" or shear waves received by paired detectors after major earthquakes provide evidence that Earth's inner core is:
anu.edu.au/news/all-news/anu-researchers-confirm-earth’s-inner-core-is-solid
(A) completely solid.
(B) rapidly shrinking.
(C) dynamically unstable.
(D) electrically conductive.
(E) about to flip its magnetic poles.
Correct answer: (A)
Student responses
Sections 70178, 70186
(A) : 19 students
(B) : 1 student
(C) : 3 students
(D) : 3 students
(E) : 1 student
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