Test: Geologic Time/Rock Record

If Earth's history is put on a scale of 1 yard (1 in = 100 million yrs), human civilization would have been around for

• less than one inch.
• 1 yard.
• 10 inches.
• 24 inches.

Tags

NGSS.MS-ESS1-4

What is the breakdown of unstable isotopes into stable isotopes of other elements called?

• uncomformities
• relative dating
• Carbon-14
• radioactive decay

Tags

NGSS.HS-PS1-8

How far back in time can geologists study the history of the earth?

• 1.6 billion years
• 46 million years
• 4.6 billion years
• 160 billion years

Tags

NGSS.MS-ESS1-4

What is the largest division of time?

• eon
• epoch
• era
• period

Tags

NGSS.MS-ESS1-4

What type of dating indicates a specific age of a rock by using methods such as carbon dating or Uranium 235?

• Relative Dating
• Absolute Dating

What type of dating indicates an approximate age of a fossil in relationship to other layers of rock in an area?

• relative dating
• absolute Dating
• radiometric dating

Tags

NGSS.MS-ESS1-4

What is the idea that geologic processes are occurring now are the same as those that occurred in the past?

• unconformities
• uniformitarianism
• epicism
• catastrophism

Tags

NGSS.MS-ESS2-1

What is a fossil that is used to establish the age of a rock layer because the fossil is distinct, abundant, and widespread and the species that formed that fossil existed for only a short span of geologic time?

• index fossil
• trace fossil
• fossil
• varve

What is a fossilized mark that formed in sedimentary rock by the movement of an animal on or within soft sediment called?

• index fossil
• fossil
• trace fossil
• permineralization

The time required for half of a sample of a radioactive isotope to break down by radioactive decay to form a daughter isotope is called what?

• uniformitarianism
• relative age
• half-life
• radioactive dating

Tags

NGSS.HS-PS1-8