Earth History

Which best describes a fossil that helps determine the relative age of a rock layer?

• trace fossil
• index fossil
• radioactive fossil
• unconformity fossil

Tags

NGSS.MS-ESS1-4

Which process would be most effective in determining the age of fossils embedded in rock?

• relative dating
• absolute dating
• use of index fossils
• use of core sampling

Tags

NGSS.MS-ESS1-4

By which method have scientists determined that the Earth is about 4.5 billion years old?

• plate tectonics
• relative dating
• radioactive dating
• law of superposition

Tags

NGSS.MS-ESS1-4

Which is the most accurate method scientists can use to estimate Earth's age?

• relativism
• superposition
• relative dating
• radioactive dating

Tags

NGSS.HS-ESS1-6

The index fossil of a type of trilobite is discovered in layer A of a set of rock layers found at three different sites of a field investigation. Which conclusion can be made about the rocks in layer A at all three sites?

• The rocks are all different ages
• The rocks are all about the same age
• The rocks were formed from melting magma
• The rocks were formed during a catastrophic event

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which statement is true?

• The oldest layers of rock and soil are closest to the surface of the earth
• The youngest layers of rock and soil are farther away from the surface of the earth.
• Carbon-14 dating is an example of relative dating, and the law of superposition is an example of absolute dating.
• Absolute geologic dating and relative geologic dating are two methods used by scientists to determine the age of geologic evidence.

Tags

NGSS.MS-ESS1-4

Which method provides the most accurate age of a rock sample?

• superposition
• relative dating
• radioactive dating
• index fossil identification

Tags

NGSS.HS-PS1-8

Which type of rock replaces bone and other hard organic materials to create rock molds of fossils?

• metamorphic
• sedimentary
• extrusive igneous

Tags

NGSS.MS-LS4-1

What role do faults play in the Law of Superposition?

• Faults create new types of rock.
• Faults are younger than the layers they cut through.
• Faults are the same age as the layers they cut through.

Which statement best describes the Law of Superposition?

• Each sedimentary layer of rock represents 1,000 years of Earth's age, much like the rings of a tree.
• In undisturbed layers of sedimentary rocks, 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