Understanding Geologic Time Use the Geologic Time” interactive on the UCMP Through Time” webpage “Understanding “Explorations (http://www.ucmp.berkeley.edu/education/explotime.html) to answer the following questions. How many pages would be in the History of the Earth” book if each page represented 10,000 “A years of Earth history? __________________________________ For the events listed below, fill in how many years ago the event happened, and what page it would be on in the History of the Earth” book. “A Event ago Page # in book Formation of the Earth and Moon Earliest life appears Early land plants Largest mass extinction Dinosaur extinction Early hominid “Lucy” What is the difference between relative date and absolute date? (Use the U.S. history timeline you create to help answer this question.) What is the Law of Superposition? Fill in the following information for the fossils in step 7 of the activity. Fossil Fact about the organism Date the fossil: Trilobite First appeared: Brachiopods Height of diversity: Eurypterids Went extinct: Ammonites Went extinct: Which of the fossils is the earliest (oldest)? _________________________________________ What is radiometric dating, and what does it tell us?
Understanding Geologic Time Use the “Understanding Geologic Time” interactive on the UCMP “Explorations Through Time” webpage (http://www.ucmp.berkeley.edu/education/explotime.html) to answer the following questions. How many pages would be in the “A History of the Earth” book if each page represented 10,000 years of Earth history? __________________________________ 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 ago Page # in book Formation of the Earth and Moon Earliest life appears Early land plants Largest mass extinction Dinosaur extinction Early hominid “Lucy” What is the difference between relative date and absolute date? (Use the U.S. history timeline you create to help answer this question.) What is the Law of Superposition? Fill in the following information for the fossils in step 7 of the activity. Fossil Fact about the organism Date the fossil: Trilobite First appeared: Brachiopods Height of diversity: Eurypterids Went extinct: Ammonites Went extinct: Which of the fossils is the earliest (oldest)? _________________________________________ What is radiometric dating, and what does it tell us?
understanding_geologic_time.docx