1. Personal Time Scale
Step 1: List the 20 most important events of your lifetime. Please include the following events:
Today
Birthday (day you were born)
Started Kindergarten
Learned to Walk.
Step 2: Arrange these events in order by placing a 1 in front of the event that occurred first and a number 2 for the event that occurred second, etc.
Step 3: In the “Major Events” column on the handout, write these events in order from most recent to longest time ago. “Today” should be on the top of the list and “I was born” should be on the bottom.
Step 4: In the “Years Ago” column, write how many years ago each event happened. Write your entries using decimals. For example, 2 years 6 months ago = 2.5 years ago.

2. EON
ERA
PERIOD
YRS AGO
MAJOR EVENTS
 40.25
 Day I was Born

3. Personal and Geologic Time Scale Comparisons
Please create a Venn diagram that compares
your personal time scale to the “official” geologic
time scale.