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ConcepTest: Relative Planet Ages

ConcepTest questions by David McConnell , David Steer , Walter Borowski, Jeffrey Dick, Annabelle Foos, Jeffrey Knott, Alvin Konigsberg, Michelle Malone, Heidi McGrew, Kathie Owens, and Stephen Van Horn


How old are other planets in the Universe in comparison to the planets in our Solar System?

a. Other planets are older than the planets in our Solar System.
b. Other planets are younger than the planets in our Solar System.
c. Other planets are the same age as the planets in our Solar System.
d. Other planets may be older, younger, or the same age as the planets in our Solar System.

Student Responses:

No data yet. The correct response is D.

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References and Notes:


Physics:Astronomy:Solar System, Geoscience:Lunar and Planetary Science

Resource Type

Activities:Classroom Activity:Short Activity:ConcepTests

Grade Level

College Lower (13-14):Introductory Level

Ready for Use

Ready to Use


Teach the Earth:Teaching Environments:Intro Geoscience, Teach the Earth:Course Topics:Planetary Science

Earth System Topics

Solar System and Astronomy, Time/Earth History


Time/Earth History, Solar system