12-2 Geologic Time Scale Practice

Fossils that are useful for dating, because they are common, easy to identify, widespread, and existed for a brief time are called _______ fossils.

• trace

• extinct

• index

• key

Earth’s history is organized by _____________.

• the Precambrian time scale

• units representing one million years

• the geologic time scale

• which plants lived on Earth

Tags

NGSS.MS-ESS1-4

Which of the following is the longest time span in Earth’s history?

• Mesozoic Era

• Quaternary Period

• Precambrian Time

• Paleozoic Era

Which of the following periods make up the Mesozoic era?

• Paleozoic, Cenozoic, Precambrian

• Cambrian, Ordovician, Silurian

• Quaternary, Tertiary, Triassic

• Triassic, Jurassic, Cretaceous

Tags

NGSS.MS-ESS1-4

The evolution of primates occurred in which of the following time periods?

• Cenozoic Era

• Mesozoic Era

• Paleozoic Era

• Precambrian Time

Where can the oldest layer be found?

• The top layer
• The middle layer
• They are all the same age
• The bottom layer

Tags

NGSS.MS-ESS1-4

Relative age dating is used to determine the...

• actual age of an event
• length of time between two events
• age of one event in comparison with other events
• rate at which a gologic process occurs

The Approximate Age of the Earth

• 1 million years

• 6,000 years

• 4.55 billion years

• 4.55 million years

Tags

NGSS.HS-ESS1-6

The "Age of Mammals"

• Cenozoic

• Mesozoic

• Paleozoic

• Precambrian

Tags

NGSS.MS-LS4-1

A period of time in history marked by notable events.

• Genetic Drift

• Epoch

• Founder Effect

• Genetic Equilibrium