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;
10 Cards in this Set
- Front
- Back
|
Fossil |
The processed remains or trancesnof organisms that have lived in the past |
|
|
Mold fossil |
When sdeiments burry a organism and the sedi!ents turn into rock |
|
|
Cast fossil |
When a mold is filled with sand or mud that hardens into the shape of the organism |
|
|
Petrified fossil |
When minerals soak into the burried remains |
|
|
Preserved fossil |
When entire organisms or parts of organisms are prevented from decaying |
|
|
Carbonized fossil |
When organisms or parts are processed between soft layers of mud or clay |
|
|
Trace fossil |
When the mud or sand hardens to Stone of foot print |
|
|
Law of superposition |
That older fossils or soil is on bottom and younger soil or fossils is on top |
|
|
Relative age |
Comparing the ages of 2 things |
|
|
Absolute age |
The exact age of something |
