Geologic Time and Relative Dating

___determines the order of events by comparing the positions of rocks.

• Superposition

• Index Fossils

• Absolute Dating

• Relative Dating

Tags

NGSS.MS-ESS1-4

Which layer is the oldest?

• Layer 1 because it is closest to the surface.

• layer 2 because it is the thickest.

• Layer 3 because it has the most fossils.

• Layer 4 because it is on the bottom.

Tags

NGSS.MS-ESS1-4

What are the layers in order from oldest (1) to youngest (5)?

• C

• A

• B

• D

• E

Tags

NGSS.MS-ESS1-4

The Precambrian Eon is known for

• Age of Reptiles

• Age of Invertebrates

• 88% of Earth’s time

• Pangea Split

Tags

NGSS.MS-LS4-1

The diagram shows three sedimentary rock layers and an igneous intrusion.

What is the relative age of igneous intrusion W?

• Igneous intrusion W is younger than sedimentary rock layers Z and X, but its relative age to layer Y cannot be determined.

• Igneous intrusion W is younger than sedimentary rock layers Y and Z but older than layer X.

• Igneous intrusion W is older than sedimentary rock layers Z and X, but its relative age to layer Y cannot be determined.

• Igneous intrusion W is older than sedimentary rock layers Y and X but younger than layer Z.

Tags

NGSS.MS-ESS1-4

The diagram shows a geologic cross section of rock layers in a region.

Which geologic event happened most recently ?

• folding of rock layers W, Y, and X

• intrusion of igneous rock Z

• faulting of rock layers V, W, Y, and X

• intrusion of rock layer Y

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

The diagram shows a geologic cross-section from a region.

What are the relative ages of the rocks from oldest to youngest ?

• W, V, X, Z, and Y

• W, Y, V, X, and Z

• W, V, X, Y, and Z

• W, V, Y, X, and Z

Tags

NGSS.MS-ESS1-4

Click the letter that is the oldest layer or event?

Tags

NGSS.MS-ESS1-4

Which layer is OLDER? Layer M or Intrusion P?

• Layer M

• Intrusion P

Tags

NGSS.MS-ESS1-4

The igneous intrusion and fault are _______ than the sedimentary layers they cut through

​ (a)   ​

• then same age as

• younger

• older

Tags

NGSS.MS-ESS1-4