Rock Dating: The Grand Canyon

Scientific law that states in horizontal sedimentary rock, the oldest layers are at the bottom

• intrusion

• fault

• index fossil

• superposition

Tags

NGSS.MS-ESS1-4

An intrusion is always ___________ than the rock layers around it and beneath it

• younger

• older

Tags

NGSS.MS-ESS1-4

The diagram shows a cross section of rocks beside a highway. 
Which rock type is the oldest?

• rock type 1
• rock type 2
• rock type 3
• rock type 4

Tags

NGSS.MS-ESS1-4

A ________________ is a break in Earth's crust

• intrusion

• fault

• extrusion

• igneous rock

Tags

NGSS.MS-ESS3-2

In the diagram which rock layer is probably the oldest?

• layer 1

• layer 2

• layer 5

• layer 6

Tags

NGSS.MS-ESS1-4

Which rock layer most likely contains fossils of the most recently evolved organisms

• 1
• 2
• 3
• 4

Tags

NGSS.MS-ESS1-4

The diagram shows some of the layers of rocks found in the Grand Canyon. Scientists find these layers of rock useful for studying fossils
What type of rock is shown labeled in these layers?

• extrusive
• igneous
• metamorphic
• sedimentary

Tags

NGSS.MS-ESS1-4

Which can most likely be concluded about the top layer of rock seen in an undisturbed cliff wall?

• The top layer is older than layers located farther down the cliff.
• The top  layer is younger than layers located farther down the cliff.
• The top layer contains more fossils than layers located farther down the cliff.
• The top layer contains fewer fossils than layers located farther down the cliff.

Tags

NGSS.MS-ESS1-4

Based on the Law of Superposition, what can be concluded about fossils?

• fossils give clues about past climate patterns
• Fossils form from the hard parts of organisms
• The oldest fossils are found in the lowest rock layers
• The most recent fossils were advanced organisms

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Which statement best describes the Law of Superposition?

• Each sedimentary layer of rock represents 1000 years of Earth's age, much like the rings of a tree.
• In undisturbed layers of sedimentary rock, the upper rock layers are older than the lower rock layers
• In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks
• Rocks that form near volcanoes are older than surrounding rock.

Tags

NGSS.MS-ESS1-4