8R Stratigraphy (Relative Dating) 2025 Homework

Used to determine whether an object is older or younger than other objects

• Superposition
• Relative Dating
• Fossil
• Unconformity

Tags

NGSS.MS-ESS1-4

States that younger rocks lie above older rocks if the layers have not been disturbed

• Law of crosscutting
• Law of superposition
• Relative Dating
• Unconformity

Traces or remains of organisms that lived long ago

• Fossil
• Unconformity
• Superposition
• Column

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What are the relative ages of the features in order from oldest to youngest?

• Limestone, Basalt, Fault, Siltstone
• Siltstone, Fault, Basalt, Limestone
• Limestone, Fault, Basalt, Siltstone
• Limestone, Siltstone, Fault, Basalt

Tags

NGSS.MS-ESS1-4

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

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

Tags

NGSS.MS-ESS1-4

Using the information from the prevous slides. Which rock layer is the youngest?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-4

Using the information from the previous slides. Which Rock layer is the oldest?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-4

Intrusion 4 is the youngest event in the following rock layers. This is known as......

• Law of Cross-Cutting

• Law of Original Horizontality

• Law of Superposition

Tags

NGSS.MS-ESS1-4

What does the Law of Original Horizontality mean?

• Sedimentary Rocks nautrally form vertical layers and then they fall horizontally

• Sedimentary Rocks form in horizontal layers

• Sedimentary Rocks form vertical and horizontal layers

• Sedimentary Rocks cannot change direction once formed