My Science Box

Time
10 minutes guess where events occurred and discussion
30 minutes create timescales
5 minutes add Pre-Cambrian eons to the timeline
5 minutes discuss analogies

Grouping
Individual

Materials

• Copies of a geologic time scale (download the attachment on the bottom of the summary page, see the sources, or create your own)
• Adding machine paper, at least 60 cm per student and an additional 5 meters for the class
• Meter sticks or rulers, enough for 1 per student
• Optional: Colored pencils
• Optional: Calendar or map of the United States

Setting
Classroom