Q2 Exam Study Guide

Front

What is the Geologic Time Scale used to record?

Back

The major events and the diversity of life forms that have been on Earth.

Front

In which period of the Paleozoic Era did the first insects and arachnids appear?

Back

Silurian.

Front

What cycle changes one type of rock to another?

Back

Rock Cycle.

Front

What life forms began to appear in the Quaternary Period about 315,000 years ago?

Back

Humans.

Front

What can Earth's geologic processes cause rock material to eventually be?

Back

Melted, recycled, changed, or all of the above.

Front

Define the Rock Cycle.

Back

The series of processes that change one type of rock into another.

Front

What are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.

Front

What is the significance of the Cambrian period?

Back

It marks the beginning of the Paleozoic Era and the appearance of most major animal phyla.

Front

What is a fossil?

Back

The preserved remains or traces of ancient organisms.

Front

What is the difference between relative dating and absolute dating?

Back

Relative dating determines the age of rocks or fossils in relation to others, while absolute dating provides a specific age.