Fossils only form in _____ rocks.

• igneous

• sedimentary

• metamorphic

• classic

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

_{What can scientists learn from the sequence of rock layers?}

• Geologic history of that area
• Future geological events
• the number of organisms that live in the area
• the impact that hikers have had on an area.

Tags

NGSS.MS-ESS1-4

Which scientific principal states that younger rock layers are generally deposited on top of older rock layers?

• Superposition

• Evolution

• Original Horizontality

• Inclusion

__________ were used to develop the geologic time scale.

• Fossils

• Meteorites

• Sedimentary rocks

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Older rocks and fossils tend to be at the.....

• Top
• Bottom

Tags

NGSS.MS-ESS1-4

Eons, the longest unit of geologic time, are subdivided into_________________.

• eras

• epochs

• periods

Tags

NGSS.MS-ESS1-4

A______________ can cause extinctions by causing the blocking of sunlight.

• rise in sea level

• volcanic eruption

• shift in earth's plates

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS4-1

Periods are subdivided into________________.

• eras

• epochs

• eons

Tags

NGSS.MS-ESS1-4

A _______________ is the disappearance of many species within a short time period.

• multicellular organism

• volcanic eruption

• mass extinction

• Precambrian disturbance

Tags

NGSS.MS-LS4-1

Jurassic and Ordovician are examples of geologic ______________.

• eons

• epochs

• eras

• periods

Tags

NGSS.MS-ESS1-4