Vocab Unit 2

Front

Found in water, can harden and act as glue to form rock.

Back

Dissolved substance

Front

Method measuring actual age in years.

Back

Absolute Dating

Front

Remains of a widespread organism existing for ~1 million years are called...

Back

Index fossil

Front

When a plant or animal dies, it can be preserved, eaten, or...

Back

Decompose

Front

Method to determine if something is older or younger.

Back

Relative Dating

Front

Earth’s known fossils and their information are called the

Back

Fossil Record

Front

Age comparison of objects

Back

Relative Age

Front

Traces or remains of an ancient organism

Back

Fossil

Front

Actual age of an object in time units.

Back

Absolute Age

Front

Rock layers missing, creating gaps in the record

Back

Unconformity