Bell ringer 3/16: Geological Time Scale Review 2

The geologic time scale is a record of the geologic events and the evolution of life forms as shown in the fossil record.

• True

• Fasle

The first step in developing the geologic time scale was studying rock layers and index fossils worldwide.

• True

• False

Periods are subdivided into units of geologic time called eras.

• True

• False

Select the correct answer to complete the statement.

Because the time span of Earth's past is so great, geologists use the _________time scale to show Earth's history.

• Clock

• Geologic

• Earth

• World

Select the correct answer to complete the statement.

The long span of time that begins geologic time is called

• Mesozoic Time

• Permian Period

• Precambrian Time

Select the correct answer to complete the statement.

Geologists divided the time between Precambrian Time and the present into three long units of time called _________

• eras

• periods

• dates

• years

Select the correct answer to complete the statement.

The Triassic Period, the Jurassic Period, and the Cretaceous Period occurred in the _________ Era.

• Cenozoic

• Mesozoic

• Paleozoic

Select the correct answer to complete the statement.

_________ for many of the geologic periods come from places around the world where geologists first described the rocks and fossils of that period.

• Colors

• Rocks

• Names

What type of rock do fossils form in?

• Igneous
• Sedimentary
• Metamorphic
• Classic

Tags

NGSS.MS-ESS2-3

Relative dating of rock layers tells us that the deeper we dig, _______.

• the younger the rocks get
• the smellier the rocks get
• the harder the rocks get
• the older the rocks get

Tags

NGSS.MS-ESS1-4