Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
11 Cards in this Set
- Front
- Back
Uniformitarianism |
States that geologic processes that happened in the past can be explained by current geologic processes. |
|
Fossils |
The trace remains of an organism that lived long ago. |
|
How do organisms become preserved as fossils? (5 ways) |
1. Trapped in amber 2. Trapped in asphalt 3. Buried in Rock 4. Become frozen 5. Become petrified |
|
Trace Fossils |
fossilized structure that formed in sedimentary rock by animal activity on or in soft sediment. |
|
Two examples of Trace fossils:
(Pg. 153) |
1. Tracks 2. Burrows |
|
What can fossils tell us? |
1. Environmental Changes over time (ex. finding fish fossils represents what?) 2. How life forms have changed over time |
|
How does Sedimentary rock show Earth's history? |
1. Composition - Shows the source of the sediment that makes up the rock
2. Texture and Features - Shows the environment in which the sediment was carried and deposited. |
|
Pangea |
Single landmass once formed by all the continents |
|
Climate |
Describes the weather conditions in the area over a long period of time. |
|
What mostly determines climate? |
Temperature and Precipitation |
|
Ice Core |
Long cylinder of ice drilled out of icecaps that give the history of Earth's climate over time. |