Rock Layers
Which rock layer is the youngest?
The top because it was the last one laid down.
If you found a fossil with sharp long teeth what type of food did that animal eat?
meat/carnivore
What is an herbivore?
An animal that eats plants.
Which rock layer is the oldest?
The bottom because it was the first layer to be laid down.
Which type of rock are most fossils found in?
Sedimentary
What type of scientist studies the Earth's rock layers and past landscapes?
A geologist.
What is a trace fossil?
Imprints left from animals or plants.
True or False: All fossils are extinct animals.
False
What type of scientist studies fossils?
A paleontologist.
What type of fossils have been found in the oldest rock layers?
Trilobite and Baiera
What is a rock layer full of fossils called?
A bone bed.
What is relative dating?
When scientists use the sequencing of rock layers to find out if a fossil is older or younger than another.
If a shell fossil was found below a mountain lion fossil what do you know about the landscape?
It used to be an ocean.
What is the method of radiocarbon dating used to do?
Find the absolute date of a fossil (its actual age).
What is absolute dating?
When scientists find the age of a fossil.