Dating
Fossils
Vocabulary
Anything Goes
100
What are the two types of finding the age of rocks?
Relative Dating and Absolute Dating
100
A ________ fossil is used to tell guide or "point" you to the correct order of fossils.
What is an index fossil?
100
Definition of Relative Dating
The process of estimating the age of rocks using clues.
100
When is Ms. Alasry's wedding?
June 15
200
Radiometric Dating is an example of _____________ dating.
Absolute Dating
200
True or False: Fossils can tell you about changes in the environment.
True. For example, if there are fossils of fish in a dry area, than there probably was a sea there at some point in time.
200
This law states that the layers of sediment at the bottom are older than the layers on top.
Law or Principle of Superposition
200
What is the characteristic in a person that allows them to overcome obstacles?
Grit
300
If the half-life of Uranium-238 is 4.5 billion years, how long will it take for half of the Uranium-238 to turn into daughter materials?
4.5 billion years
300
True or False: Fossils are not always the left-overs of organisms.
True. Fossils can be a foot print of an animal or the shape of the animal left in sediment.
300
What is absolute dating?
Calculating the age of a rock by finding the exact years it existed.
300
What is the skill of working together respectfully with others to accomplish a goal?
Collaboration
400
This form of dating fossils gives you the exact age of the fossil
Absolute Dating
400
___________ is the material that comes from trees and sometimes fossilizes organisms.
What is amber?
400
A surface that is missing part of the geologic column.
Unconformity
400
During our canoeing trip, we will be studying ________.
Erosion
500
True or False: In radiometric dating, half of the parent material decreases after one half-life.
True
500
If fossils of an species stop appearing in the layers of sediment, then this species probably ___________.
Became extinct or migrated
500
Finding the exact age of a rock/fossil by finding the ratio of parent material to daughter material.
Radiometric Dating
500
Name 5 elements off of the Periodic Table of Elements
Answers may vary
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