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WorksheetsUnit 4, Lesson 1- Exploration 1- Fossils & Sedimentary Rock
Total questions: 18
Worksheet time: 1hrs 19mins
Put the layers in order from oldest to youngest/newest
conglomerate
sandstone
limestone
siltstone
mudstone
Most fossils form from
the muscles and organs of the animals body
the bones, horns and teeth of an animal
the skin of an animal
the fur of an animal
Dinosaur tracks preserved in rock are an example of
trace fossils
true form fossils
mold fossils
cast fossils
A scientist is studying trace fossils of an early mammal. Which type of information can be learned from studying trace fossils?
how many teeth the mammal had
he structure of the mammal’s skeleton
information about the behavior of the mammal
how the mammal is genetically related to modern mammals
Which of the following would make the best index fossil?
An insect that only existed in one small forest for about 100 million years.
An aquatic animal that existed all over the world for about 10 million years.
A single-celled organism that lived in a widespread region for about 10 million years.
A plant species that lived in a specific geographic region for about 5 million years.
body decay due to natural elements
An archaeologist is digging through the rock layers and finds an index fossil in Layer B.
This fossil will help her do which of the following?
determine the minerals found in Layer B
determine the age of the rock in Layer B
determine the type of rock in Layer B
determine the thickness of Layer B
What letter would make the best index fossil? (outcrop is rock layers that are exposed to surface)
X
Z
Y
W
Which of the following would be the LEAST likely/hardest to determine information we can learn from fossils?
how animals communicated with each other
how the environment has changed
how species have changed
extinct species
The Geologic time scale is subdivided into 4 groups. Which of the following lists them from largest/longest to smallest/shortest?
Eons, periods, epochs, eras
Eras, eon, periods, epochs
Eons, eras, periods, epochs
Epochs, periods, eras, eons
Which layer of rock was deposited first?
A
B
C
D
Which fossil is a replica of the original shape of the organism (it forms by mineralized sediment that fills in an impression/spaqce left by organism)?
If you found an index fossil in a layer of rock in Montana and a similar fossil in a layer of rock in Texas, you would know that:
the fossils and rock layers are the same age
the fossils from Montana are older
the fossils from England are older
none of the above
What is the best reason that fossil #4 is NOT a good index fossil?
It is not widespread
it is not short-lived (in numerous layers)
It is in half of the outcrops
