Monday, October 16th

Do Now: List the periods involved in the Paleozoic Era. Describe one event that occured during each period of the Era.

Today in class we:
- worked in jigsaw groups on group time line.

Announcements:
**** Time line will be worked on again in class on Thursday , and will be due Monday.
Presentations due on Monday, review Wednesday, test next Friday

Geologic Timeline - Group Project Assignment

Goal: To make and use a model of the Earth’s geologic timescale

Materials:

A long piece of white paper or string, pencil, colored pencils, tape or glue

Procedure:

Make a timeline at a scale of 1 millimeter (mm) = 1 million years, or 1 meter = 1 billion years.

1. Tape the paper/ string to the wall or floor

2. Make all markings with pencil first, starting with a vertical line near the left-hand end of the ribbon. Label the mark 0, for today.

3. Moving to the right, make vertical lines for 1, 2, 3, 4 bya at the proper intervals. Label your marks.

4. On the scale measure off and mark the boundaries for the Hadean Era, Archean Era, Proterozoic Era, Paleozoic Era, Mesozoic Era, and Cenozoic Era.

5. Label the time periods within the Phanerozoic Eon at the appropriate intervals.

6. As a group, decide the method you will use to incorporate at least two descriptive illustrations from each Era onto your timeline.

7. Make sure your timeline is legible and finished quality, with all periods properly labeled at the appropriate intervals. Use your creative touch.

Conclusion:

Stand back and view the time line. Write a paragraph expressing your conclusions about geologic time. What do you know about Earth’s history? What do you know about human’s time on Earth?