The University of Arizona
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Roping Geologic Time part of Rates and Time:GSA Activity Posters
After having talked about the geologic time scale, I ask for two volunteers from the class to hold a rope that is 50 feet long. I say that one end is the beginning of the Earth (4.6 billion years ago), and the other is today. I then give out 16 clothes pins and ask various students to put a cloths pin on the 'time line' at various 'geologic events'. Throughout the activity I have a quiz going on where the students calculate percentages of Earth History for major geologic events, and compare it to their own ages. On their time scale, the dinosaurs died only about two 'months' ago! The exercise is very effective at letting them get a sense of how long geologic time is, and how 'recently' some major geologic events happened when you consider a time scale that is the age of the earth.
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Successful Strategies for Recruiting and Retaining Geoscience Majors part of Earth Educators Rendezvous:Rendezvous 2016:Program:Panel Discussions
With an aging geoscience workforce, employment opportunities in the geosciences remain robust, creating a demand for workers prepared as undergraduate majors in the geosciences. At the same time, participation of ...
Workshop Leader (22 workshops)