Earth time periods and eras

    • [DOC File]Geologic Time Activity - Cloverleaf Local

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      Making a Time Line Draw a model of a football field. Starting at the left (4.6 billion years ago) and "moving forward in time," label the 10-yard lines in years. Then, using different colored markers, draw a horizontal line to show the beginning and end of each of the following periods and eras. Cenozoic Era (65 million years ago [mya] to present)

      list of eras and periods


    • [DOC File]Geologic Time

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      775 Periods may be divided into epochs. Seven epochs are names for the periods of the Cenozoic era. 776 The epochs of other periods usually are just termed early, middle, and late. 777 The Pleistocene epoch, which ended just 10,000 years ago, coincides with a time span commonly known as the ice age.

      chart of eras and periods


    • [DOC File]Geologic Time Scale:

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      Geologic Time Scale. Organizing Earth’s History. The . Geologic Time Scale . is a timeline that organizes the events in Earth’s history, like a calendar. Single-celled organisms dominated most of Earth’s history. Plants and fish have only evolved within the past 500 million years. Humans evolved about 110,000 years ago.

      eon era period epoch


    • [DOC File]The Precambrian - Ms. Alderson's Earth and Space Science ...

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      It uses Precambrian periods and dates from A Geologic Time Scale 1989 by Harland, W. Brian, Richard Armstrong, Allan Cox, Craig Lorraine, Alan Smith and David Smith . Summary of the three eras of Precambrian time. The Priscoan (Hadean) Era Formation of the Solar System and the Earth. Formation of the rocky Earth out of collisions of planetoids.

      timeline of earth's eras


    • [DOCX File]Weebly

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      In order to better understand the Earth’s history, geologists have divided it into four time periods called eras: Cenozoic. Mesozoic. Paleozoic. Precambrian. Precambrian Era: The Precambrian Era began when the Earth was first formed, 4 600 000 000 years ago. This era lasted for about 4 billion years, approximately 87% of the Earth’s history.

      eon era period


    • [DOC File]Geologic Timeline Activity

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      In this 3-part classroom community activity, students will be constructing a Geologic Timeline to show the Earth’s biologic and geologic history to gain perspective on the succession and age of Earth’s important events. Approximately 30 students, divided into groups covering 11 time periods, will construct a 4.6-billion year timeline.

      periods of earth history


    • [DOC File]Modeling the Geologic Time line and the Development of ...

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      The scale should model the real time of planet earth. Students can choose to construct a linear geological time line or compare the geologic time scale to a year, month or day on earth, etc. Be creative! Using “table 23.1”, plot the different divisions: eras and periods on your time scale.

      eons and eras


    • [DOC File]Geologic Time Webquest

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      Geologic Time Scale 1. In order from oldest to present, what are the three eras of geologic time? 2. Which era do we live in? 3. When you were born, which era was it? (answers may vary) 4. During which era did the first fish develop? 5. During which era did the first humans develop? 6. Which era is known as the "Age of the Dinosaur?" 7.

      geologic eras periods and epochs


    • [DOC File]Use the geologic time scale to find the missing dates and ...

      https://info.5y1.org/earth-time-periods-and-eras_1_3f00e1.html

      This time scale was developed gradually, mostly in Europe, over the eighteenth and nineteenth centuries. Earth's history is subdivided into eons, which are subdivided into eras, which are subdivided into periods, which are subdivided into epochs.

      list of eras and periods


    • [DOC File]GEOLOGIC TIME QUESTIONS

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      GEOLOGIC TIME QUESTIONS NAME _____ DATE _____ HOUR __ Use the geologic time scale (page 312) and pages 303-306 to answer the following: Geologic time is divided into four large units of time called eras. List the 4 eras in order from oldest to most recent. 2. Which era l. asted for the longest period of time?

      chart of eras and periods


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