Slide 1 Law of Superposition Chapter 8 Lesson 2 Slide 2 Secrets of the Layers of Rock Slide 3 Law of Superposition In layers of horizontal sedimentary rock, each…
William E. Ferguson Geologic Time A major difference between geologists and most other scientists is their attitude about time. A "long" time may not be important…
PowerPoint Presentation PKA: Answer on your own paper and turn in to Ms. Deel 1. Do populations of organisms change over time? How do you know? 2. Why would organisms need…