Geologic Time Scale and the Fossil Record
Engage: Discuss as a group
What is extinction?
How and why do species go extinct?
What are some examples of extinct species?
How and why do we study extinction events?
Impact Video
In your lab book, title the next page: Engage- Extinction!
Prompt: What were the effects of a large asteroid impact on past life?
You will watch film and then discuss.
Asteroid Video First
Asteroid Video Second
First… Geologic time- how do we know how old things are???
Geologic Time Scale
Used by geologists and other scientists to map the timing and relationship between events that have occurred during the history of the Earth.
Fossils- remnants of past life
Make your own Geologic Time scale
Geologic Time scale Video
Geologic Time Scale Video
Finish Making your own Geologic Time scale
Earth’s History
Fossils and Fossilization
http://www.sheppardsoftware.com/scienceforkids/dinosaurs/movies.htm
Pass around Mold Fossil, Body Fossils
Fossils Record
The historical sequence of life on earth based on the number and order of fossils found in the rock layers
Fossils Record
Fossil Sort
Goal- Identify fossils collected from each of the Geologic periods to determine what this can tell us about the history of life and the history of earth.
Remember- Geologic Time Scale!
Fossil Record
Fossil Record
Brachiopod
Gastropod
Sea snail
Hemister Echinoid
Crinoid
Interpret your data!