NEW
Font size
WorksheetsFossils and Dating
Total questions: 10
Worksheet time: 5mins
What does the law of superposition state?
older rocks are top rock layers
older rocks are bottom rock layers
each rock layer is eroded before we can learn anything
younger rocks are in the bottom rock layers
Look at the picture. Why is it like traveling backwards in time as you go down the sides of the canyon?
The layering in the diagram does not give enough information to r estimate the relative rock age.
The layering in the diagram shows the relative age of the rock is older if farther down in the rock layers.
The layering in the diagram shows the relative age of the rock is younger if farther down in the rock layers.
The diagram shows the absolute age of the rock is older if farther down in the rock layers changed the landscape.
What could have happened at the C-PC layers?
impact of an asteroid
earthquake
weathering and erosion
all of the above
Which fossil is the oldest?
a
b
c
d
Which fossil is the youngest?
a
b
c
d
A fossil can...
usually tell us a tremendous amount of information about organisms that lived two to three years ago.
give us clues to past climate, surface changes on Earth, and give clues to changes that have occurred with organisms over time.
tell us very little about geologic time.
help us calculate the future
If you determine the age of fossil/rock by measuring it amount of carbon this is called____
radio dating
relative dating
absolute dating
element dating
Which is true of a index fossil?
It is not unique
it existented for a long time
It is found in only one rock layer
It is still alive today
Why is the fossil record incomplete?
The fossil record is complete
We have found all fossils
All organism fossilize
Human activities (such as drilling/digging) destroy rock layers
To use relative dating the ...
the fossil must be pretrified
rock layers must not be disrupted
the carbon in the fossil must be measure
the fossil must be of a dinosaur
