Name__________Evolution Worksheet1.What is the age of the Earth? 2.What is radioactive dating and how is it used to tell the age of materials? 3.Explain relative dating of fossils. 4.What 2 scientists set up an experiment that simulated the atmosphere of early earth? 5.Were the first cells aerobic or anaerobic? Why? 6.Oxygen didn’t become part of the atmosphere until what process started taking place? 7.What is a fossil? 8.In what type of rock are fossils usually found? 9.From what part of organisms do fossils usually form?