Rock Layers (Geologic Time)

Front

What type of dating do scientists use to determine the exact age of geological materials?

Back

Absolute dating.

Front

What does the geologic time scale represent in terms of Earth's history?

Back

Earth's 4.6 billion year history.

Front

What do paleontologists primarily study?

Back

Fossils.

Front

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

Back

Weathering.

Front

In which era did dinosaurs primarily live?

Back

Mesozoic era.

Front

What is the difference between relative dating and absolute dating?

Back

Relative dating determines the sequence of events, while absolute dating provides a specific age.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is the significance of fossils in understanding Earth's history?

Back

Fossils provide evidence of past life and help date rock layers.

Front

What is the principle of superposition in geology?

Back

In undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What is the role of tectonic plates in shaping Earth's geology?

Back

Tectonic plates move and interact, causing earthquakes, volcanic activity, and the formation of mountains.