1. DO NOW #7 Looking at Fossils Pg. 166

2. 1.Define fossil. 2.Fossils are most often preserved in which type of rock? Why? 3.Explain how organisms are preserved in amber. 4.Compare and contrast permineralization and replacement. 5.How does ice help preserve organisms?

3. T e s t F r i d a y ! F o l d e r s D U E 6.What era do frozen fossils help to tell us about? 7.What is a trace fossil? Name three major types of trace fossils. 8.How are a cast and a mold different? 9.How can fossils tell a story of environmental changes? 10.What are index fossils? Describe two examples.