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Purpose:
This lab is designed to introduce each student to the geological time scale and the history of life on Earth. The student will learn how to calculate periods of geologic time as percentages of the whole history of life.
Summary:
Students will make a geological time line showing the four geological eras the various life forms that evolved or became extinct during each time period. After the time line is completed, they will use it to answer conclusion questions.
Objectives Links:
The Who, What, and Why of Evolution
Process Skills Checklist
Materials:
- 4 different colored marking pens or colored pencils
- reference books (encyclopedia)
- textbook
- calculator
- strips of white paper (1 m lengths); students may wish to tape several lengths of typing paper together to obtain 1 m length or they may use computer paper
Safety Concerns:
No special safety considerations are needed for this activity.
Revision Date:
Summer 2001
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