NEW
Font size
WorksheetsRelative & Absolute Dating practice
Total questions: 27
Worksheet time: 40mins
Which of the following is the oldest?
Layer L
Intrusion D
Intrusion H
Layer A
What rock in the Oldest?
Conglomerate
Shale
Breccia
Sandstone
Which layer is OLDER?
Layer O
Intrusion P
Layer K
Layer L
Which is OLDER?
Fault E
Intrusion D
Layer A
Layer B
Which is oldest?
Intrusion M
Layer O
Fault J
Layer D
Rock layers that are missing or out of order due to things such as erosion, faulting, or intrusions is called...
Law of Superposition
Law of Crosscutting
Relative Dating
Unconformity
What is the most recent event to happen?
A
B
C
D
If the half-life of a radioactive group of atoms is 100 years, then how old is the rock if there have been four half-lives?
25 years
200 years
400 years
800 years
The % of the parent isotope remaining after 2 Half Lives.
50%
25%
12.5%
6.25%
The element that is the product of radioactive decay is known as the...
daughter element
half-life
parent element
carbon-14
If the half-life of a radioactive group of atoms is 300 years, then how old is the rock if there have been three half-lives?
37.5 years
100 years
600 years
900 years
If the half-life of a radioactive group of atoms is 500 years, then how many half-lives have passed after 2000 years?
1 half-life
2 half-lives
3 half-lives
4 half-lives
If you had 1000 atoms of Element A, then how many parent atoms would you have after 1 half-life?
75 atoms
250 atoms
500 atoms
125 atoms
If you had 1000 atoms of Element B, then how many parent atoms would you have after 2 half-lives?
75 atoms
250 atoms
500 atoms
125 atoms
How many half-lives have passed if there 25% parent isotope left?
1 half-life
2 half-lives
3 half-lives
4 half-lives
How many half-lives have passed if there 6.25% parent material left?
1 half-life
2 half-lives
3 half-lives
4 half-lives
