Rock Layers (Geologic Time)

Front

What is the term for the method scientists use to determine the exact age of an object?

Back

Absolute dating.

Front

What is the process called when rocks are broken down into smaller pieces?

Back

Weathering.

Front

How many years does the geologic time scale represent in Earth's history?

Back

4.6 billion years.

Front

What do paleontologists study?

Back

Fossils.

Front

In which era did dinosaurs live?

Back

Mesozoic.

Front

What is the term for the study of Earth's physical structure and substance?

Back

Geology.

Front

What is the name of the process that moves sediment from one place to another?

Back

Erosion.

Front

What are the remains or traces of ancient organisms called?

Back

Fossils.

Front

What is the term for the layers of rock that are formed over time?

Back

Rock layers.

Front

What is the name of the era that follows the Mesozoic era?

Back

Cenozoic.