Fossils Test Flashcards
1
Q
Absolute dating
A
Determining the age on a specified time scale.
2
Q
Relative dating
A
Determining the relative order of events with out knowing the exact date.
3
Q
Super position
A
The youngest layer is on top and the oldest is on the bottom.
4
Q
Tree ring
A
each of a number of concentric rings in the cross section of a tree trunk, representing a single year’s growth.
5
Q
Ice core
A
The core of the ice is removed.
6
Q
What are the different types of radiation?
A
Alpha, beta, and gamma.
7
Q
What is half life?
A
the time taken for the radioactivity of a specified isotope to fall to half its original value.
