Unit 3- Geologic Time Scale

Front

What are preserved remains of plants and animals from the remote past called?

Back

Fossils

Tags

NGSS.MS-LS4-1

Front

In what time period did jellyfish first appear?

Back

Precambrian

Front

Which era represents when humans first appeared on Earth?

Back

Cenozoic

Front

Which of the following fossils is the oldest: Ammonite, Trilobite, or Dinosaur?

Back

Ammonite

Tags

NGSS.MS-LS4-1

Front

What are fossils that are abundant, easily recognizable, short-lived, and widespread called?

Back

Index fossils

Front

What is the geological time scale?

Back

A system of chronological dating that relates geological strata to time.

Tags

NGSS.MS-ESS1-4

Front

What are the four main eons of Earth's history?

Back

Hadean, Archean, Proterozoic, and Phanerozoic.

Tags

NGSS.MS-ESS1-4

Front

What is the significance of index fossils in geology?

Back

They help to identify and date the layers of rock in which they are found.

Tags

NGSS.MS-ESS1-4

Front

What major event marks the beginning of the Paleozoic Era?

Back

The Cambrian Explosion.

Tags

NGSS.MS-ESS1-4

Front

What is the difference between relative dating and absolute dating in geology?

Back

Relative dating places events in order without exact dates, while absolute dating provides a specific age.