Rock Layers (Geologic Time)

Front

What type of dating do scientists use to determine the exact age of rocks or fossils?

Back

Absolute dating.

Front

In which era did dinosaurs primarily live?

Back

Mesozoic era.

Front

What do scientists use to help determine geologic time?

Back

Rock layers.

Front

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

Back

4.6 billion years.

Front

What is the name of the scientist who studies the composition of the Earth, including rock layers?

Back

Geologist.

Front

What is relative dating?

Back

A method used to determine the age of rocks or fossils in relation to other rocks or fossils.

Front

What are the three main eras of the geologic time scale?

Back

Paleozoic, Mesozoic, and Cenozoic.

Front

What is the significance of rock layers in geology?

Back

They provide information about the Earth's history and the age of the rocks.

Front

What is a fossil?

Back

The preserved remains or traces of ancient organisms.

Front

What does the term 'geologic time' refer to?

Back

The vast time scale over which geological processes occur.