Geologic Timeline Assignment

Multiple Choice

What is the current eon called?

• Hadean

• Archean

• Proterozoic

• Phanerozoic

Multiple Choice

Earth is _______ years old

• 3 billion

• 4.6 billion

• 4.6 million

• 567 million

Multiple Choice

Mammals were dominant in which era?

• Paleozoic

• Cenozoic

• Mesozoic

• Precambrian

Multiple Choice

Which is the longest time period in the geologic time scale

• Period

• Epoch

• Era

• Eon

Multiple Choice

What are the four eras in order from oldest to youngest?

• Precambrian, Paleozoic, Mesozoic, Cenozoic

• Precambrian, Mesozoic, Paleozoic, Cenozoic

• Cenozoic, Mesozoic, Paleozoic, Precambrian

• Mesozoic, Precambrian, Cenozoic, Paleozoic

Multiple Choice

What era are we currently in?

• Mesozoic

• Cenozoic

• Paleozoic

• Precambrian

Multiple Choice

What happened during the "Cambrian explosion"

• An asteroid caused a mass extinction

• Mammals began to dominate the Earth

• This is when there was a major increase in the number and diversity of invertebrate species in a short period of time.

Multiple Choice

Which came first?

• Trilobites are one of the dominant species on Earth

• Amphibians leave the water

• The age of reptiles

• Early humans arise on Earth

Multiple Choice

Which came first in Geologic Time?

• Cenozoic Era

• Mesozoic Era

• Paleozoic Era

• Precambrian Time

Multiple Choice

According to the fossil record, when did life first appear on Earth?

• 35,000 years ago

• 3.5-3.8 billion years ago

• 350,000 years ago

• 350 years ago

Multiple Choice

During which time segment of the Geologic Time Scale did life first appear?

• Cenozoic Era

• Mesozoic Era

• Paleozoic Era

• Precambrian Time

Multiple Choice

During which time segment of the Geologic Time Scale did dinosaurs live?

• Cenozoic Era

• Mesozoic Era

• Paleozoic Era

• Precambrian Time

Multiple Choice

According to the fossil record, which evolved first?

• vertebrates

• invertebrates

• the evolved at the same time

Multiple Choice

Mass extinctions occurred at the end of both the ______________ and the _______________ Eras.

• Paleozoic and Cenozoic

• Cenozoic and Mesozoic

• Paleozoic and Mesozoic

• None of the above

Multiple Choice

Which vertebrates have been around longer?

• fish

• amphibians

Multiple Choice

Which vertebrates have been around longer?

• mammals

• reptiles

Multiple Choice

Approximately 3.8 billion years ago what first appeared on Earth?

• Whales

• Water

• Wasps

Multiple Choice

Pangaea formed near the end of the Paleozoic Era. What was Pangaea?

• a species of lemur

• a lake in Brazil

• a giant landmass of continents

Multiple Choice

The first signs of life appeared-

• Hadean

• Archean

• Proterozoic

• Cambrian

Multiple Choice

The first era in the Geologic Timeline is the-

• Archean

• Hadean

• Proterozoic

• Cambrian

Multiple Choice

Most coal deposits come from which period?

• Carboniferous

• Cambrian

• Triassic

• Silurian

Multiple Choice

Life moves on land during the-

• Archean

• Silurian

• Permian

• Jurassic

Multiple Choice

When do reptiles dominate?

• Permian

• Jurassic

• Cambrian

• Cretaceous

Multiple Choice

Angiosperms (flowering plants) appear during which period?

• Carboniferous

• Triassic

• Devonian

• Cretaceous

Multiple Choice

Which geologic period is known as the 'Age of amphibians'?

• Triassic

• Paleozoic

• Carboniferous

• Devonian

Multiple Choice

Which era is characterized by the rise of hard-shelled organisms and shallow seas?

• Hadean

• Archean

• Proterozoic

• Cambrian