Review Game Zone
Games
Test
Preview
Back
Match it!
Match it! Select the correct answer from the pull down...Good luck!
Which characteristic of carbon-14 dating helps scientists determine the approximate time a species became extinct?
index fossil
carbon-14
2 million years old
There was a desert habitat before a marine habitat that formed the rock layers in the column.
The rocks are approximately the same age.
Carbon-14 decreases at a constant rate over time.
The fossil found in the lower layer is older than the one found above it.
radioactive dating
On a geological dig, two fossil samples were found in different rock layers in the same area. One fossil was found in a rock layer that was located below the other.Which can be concluded about the relative ages of the fossils?
index fossil
carbon-14
2 million years old
There was a desert habitat before a marine habitat that formed the rock layers in the column.
The rocks are approximately the same age.
Carbon-14 decreases at a constant rate over time.
The fossil found in the lower layer is older than the one found above it.
radioactive dating
A rock sample has 25% of its original radioactive element and the half-life of the element is 1 million years. How old is the sample?
index fossil
carbon-14
2 million years old
There was a desert habitat before a marine habitat that formed the rock layers in the column.
The rocks are approximately the same age.
Carbon-14 decreases at a constant rate over time.
The fossil found in the lower layer is older than the one found above it.
radioactive dating
A scientist finds an index fossil in layers of rock in both Africa and South America. What does this indicate about the ages of the rocks?
index fossil
carbon-14
2 million years old
There was a desert habitat before a marine habitat that formed the rock layers in the column.
The rocks are approximately the same age.
Carbon-14 decreases at a constant rate over time.
The fossil found in the lower layer is older than the one found above it.
radioactive dating
Which is the most accurate method used in determining the age of a fossil?
index fossil
carbon-14
2 million years old
There was a desert habitat before a marine habitat that formed the rock layers in the column.
The rocks are approximately the same age.
Carbon-14 decreases at a constant rate over time.
The fossil found in the lower layer is older than the one found above it.
radioactive dating
Which best describes a fossil that helps determine the relative age of a rock layer?
index fossil
carbon-14
2 million years old
There was a desert habitat before a marine habitat that formed the rock layers in the column.
The rocks are approximately the same age.
Carbon-14 decreases at a constant rate over time.
The fossil found in the lower layer is older than the one found above it.
radioactive dating
Which isotope has been most often used to determine the age of fossils in the past 50,000 years?
index fossil
carbon-14
2 million years old
There was a desert habitat before a marine habitat that formed the rock layers in the column.
The rocks are approximately the same age.
Carbon-14 decreases at a constant rate over time.
The fossil found in the lower layer is older than the one found above it.
radioactive dating
An undisturbed rock column contains a fossil of a reptile species in the lowest rock layer, an index fossil that was present 1 million years ago in the middle rock layer, and a fossil of a clam species in the top rock layer. Which statement is most l
index fossil
carbon-14
2 million years old
There was a desert habitat before a marine habitat that formed the rock layers in the column.
The rocks are approximately the same age.
Carbon-14 decreases at a constant rate over time.
The fossil found in the lower layer is older than the one found above it.
radioactive dating
Check it!
Match it!
Match it!