Understanding Geologic Time
Use the https://ucmp.berkeley.edu/education/explorations/tours/geotime/gtpage1.html webpage to answer the following questions:
1. How many pages would be in the “A History of the Earth” book if each page represented 10,000 years of Earth history?
2. For the events listed below, fill in how many years ago the event happened, and what page it would be on in the “A History of the Earth” book.
Event Years ago Page # in book
Formation of the Earth and Moon
Earliest life appears
Early land plants
Largest mass extinction
Dinosaur extinction
Early hominid “Lucy”
3. What is the difference between relative date and absolute date? (Use the U.S. history timeline you create to help answer this question.)
4. What is the Law of Superposition (what does it tell us)?