Unit 5 Test Review: Geologic Time

Front

In what type of rock do we typically find fossils? Options: Metamorphic, Igneous, Sedimentary, Minerals

Back

Sedimentary

Front

Younger rock lies above older rock describes what law?

Back

Superposition

Front

Determining a rock's age by comparing it to other rock layers; "older" or "younger"

Back

Relative dating

Front

What type of fossils help determine specific age because they only existed during a short amount of time, but can be found in many locations?

Back

Index fossils

Front

Finding a marine fossil on a mountaintop means that

Back

The mountaintop used to be the ocean floor.

Front

Which era do we currently live in? Options: Paleozoic, Cenozoic, Proterozoic, Mesozoic

Back

Cenozoic

Front

The ideal sequence of rock layers that contains all rock layers and fossils is called

Back

the geologic column

Front

The study of past life is called

Back

paleontology

Front

What does absolute/radioactive dating tell us about rocks and fossils?

Back

Exact age

Front

The Law of Superposition helps scientists to determine what?

Back

The relative age of rock layers