Fossil/Half Life Flashcards
1
Q
How do geologists use half-life
A
Tells them how old rocks/minerals are.
2
Q
Relative dating
A
When geologists use other organisms and minerals to determine how old a rock is (roughly)
3
Q
Law of super position
A
A law saying the older rock is on the bottom and the younger rock is in the top
4
Q
Which elements have a half-life
A
Carbon
5
Q
What era are we in now
A
Cenozoic era
6
Q
Half life
A
The time required for half of a sample of radioactive material to decay.
