Geologic Time Flashcard

Front

What type of rock is most likely to contain fossils?

Back

Sedimentary rock is most likely to contain fossils because it forms from the accumulation of sediment, which can include remains of living organisms.

Front

What is a body fossil?

Back

A body fossil is the preserved remains of an organism, such as bones, teeth, or shells.

Front

What is a trace fossil?

Back

A trace fossil is a record of the activity of an organism, such as footprints, burrows, or feces.

Front

What does a geologist study?

Back

A geologist studies the Earth's history, including its structure, processes, and the materials that make it up.

Front

What do paleontologists study?

Back

Paleontologists study fossils to learn about the history of life on Earth.

Front

What is the Geologic Time Scale?

Back

The Geologic Time Scale is a system used by geologists and paleontologists to describe the timing and relationships of events in Earth's history.

Front

What time period lasted from 500 to 550 million years ago?

Back

The Cambrian period lasted from 500 to 550 million years ago.

Front

What is sedimentary rock?

Back

Sedimentary rock is a type of rock that forms from the accumulation and compaction of mineral and organic particles.

Front

What is the difference between igneous and metamorphic rocks?

Back

Igneous rocks form from cooled magma or lava, while metamorphic rocks form from existing rocks that have been changed by heat, pressure, or chemical processes.

Front

What are fossils?

Back

Fossils are the preserved remains or traces of ancient organisms.