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Geologic Time

Lesson Ideas for 8 th G rade Earth Science TESSE 2009 Pat Grant. Geologic Time. The clocks in rocks. What’s the BIG idea?. 2. Earth is 4.6 billion years old 2.1 Earth’s rocks and other materials provide a record of its history Fossil record and radiometric dating

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Geologic Time

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  1. Lesson Ideas for 8thGrade Earth Science TESSE 2009 Pat Grant Geologic Time The clocks in rocks

  2. What’s the BIG idea? 2. Earth is 4.6 billion years old • 2.1 Earth’s rocks and other materials provide a record of its history • Fossil record and radiometric dating • 2.7 Over Earth’s vast history, both gradual and catastrophic processes have produced enormous changes

  3. Earth Formation • The Early Earth and Plate Tectonics video • 5 minute excerpt • http://www.youtube.com/watch?v=QDqskltCixA

  4. Relative Time EEngage Which Rock is Older? Preparing Teachers for Earth Science http://serc.carleton.edu/teacherprep/resources/activities/relative-dating.html

  5. Relative Dating Of Geologic Materials EExplorexplore Picking Common Events in Relative Order Relative Ages of Layered Rocks in the Grand Canyon Visit Geology of National Parks: 3-D Tours Featuring Park Geology at http://3dparks.wr.usgs.gov/index.html. Students will need 3D glasses. Relative Age of Layered Rocks RELATIVE DATING OF GEOLOGIC MATERIALS By Steve Mattox July 2005

  6. Explore More Who’s on First? A RELATIVE DATING ACTIVITY MARSHA BARBER and DIANA SCHEIDLE BARTOS http://www.ucmp.berkeley.edu/fosrec/BarBar.html

  7. Fossil record tells a story Record

  8. Evolution and Mass extinctions

  9. Radioactive Decay Using popcorn to simulate radioactive decay Popping popcorn in your class is an excellent way to illustrate both the spontaneity and irreversible change associated with radioactive decay. It helps students to understand the unpredictability of decay. Jennifer Wenner, University of Wisconsin-Oshkosh, wenner@uwosh.edu http://serc.carleton.edu/quantskills/activities/popcorn.html

  10. Radiometric Dating Lab http://www.fifeschools.com/cjh/staff/laker/documents/radiodating.pdf Also check out http://www.sciencenetlinks.com/lessons.php?DocID=178

  11. Drilling Through the Ages NSTA www.scilink.org ESS -018 NSTA--practical and well-designed lesson plans http://books.google.com/books?id=bOSaEwyZqzAC&lpg=PA120&ots=xZtMwkWSiV&dq=drilling%20through%20the%20ages&pg=PA122#v=onepage&q=&f=false

  12. Stratigraphy online tutorial activity • Lesson 1 - What is stratigraphy? • Lesson 2 - Correlation Activity • Lesson 3 -Geologic Time • Lesson 4 - Earth’s History - Lab • Lesson 5 - Environments through Time http://msnucleus.org/membership/html/jh/earth/stratigraphy/index.html

  13. Sample Online Activity Rock Correlation Correlate the appropriate rock units by drawing a line between the cores. You are given one clue in defining bed "A." Color the appropriate units and name them logically. Make a legend so your teacher can easily see the results. Describe what units are missing in section 3. http://msnucleus.org/membership/html/jh/earth/stratigraphy/index.html

  14. How Do We Measure Time? http://earth-time.org/k12.html http://www.agiweb.org/education/pd/earthcomm-structure.html

  15. Roping Geologic Time After having talked about the geologic time scale, get two volunteers from the class to hold a rope that is 50 feet long. Say that one end is the beginning of the Earth (4.6 billion years ago), and the other is today. Then give out 16 clothes pins and ask various students to put a clothes pin on the 'time line' at various 'geologic events'. Throughout the activity you can have 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. Randall M Richardson University of Arizona, Department of Geosciences http://serc.carleton.edu/NAGTWorkshops/time/activities/11585.html

  16. Clocks in Rocks

  17. Geologic Time Scale

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