History of earth

The bottom layer is listed as the oldest. The top layer is listed as the youngest. What is this called?

• mineral content
• radioactive decay 
• the law of superposition 
• the principle of unconformity 

Tags

NGSS.MS-ESS1-4

The Law of Superposition helps scientists to determine what?

• The absolute age of rock layers
• The age of fossils
• The relative age of sedimentary rock layers
• the super powers of rocks

Tags

NGSS.MS-ESS1-4

How old do Paleontologists believe the Earth is?

• 2015 years old
• 3.6 billion years old
• 4.6 billion years old
• 4.6 million years old

Tags

NGSS.MS-ESS1-4

What is the oldest layer in the outcrop?

• B
• C
• D
• E

Tags

NGSS.MS-ESS1-4

What is the relative age of a rock?

• The age determined by the things around it.

• The age of an igneous rock.

• The age determined by radioactive dating.

• The time it takes for 1/2 of the radioactive atoms to decay in an element.

Tags

NGSS.MS-ESS1-4

What is the absolute age of a rock?

• The age determined by the things around it.

• The age of an igneous rock.

• The age determined by radioactive dating.

• The time it takes for 1/2 of the radioactive atoms to decay in an element.

Tags

NGSS.HS-PS1-8

Because of ___________, most of the geologic record of sedimentary rock layers has been lost. 

• erosion
• volcanic activity
• tectonic plate movement
• glacial movement

Tags

NGSS.MS-ESS2-2

A(n) ______ is the preserved or mineralized remains (teeth, bones, etc.) or imprint of an organism that lived long ago.

• Fossil

• index

• mineral

• trace

Tags

NGSS.MS-LS4-1

Which type of fossil can provide clues about the activities of ancient organisms?

• index fossils

• remains preserved in amber

• carbon films

• molds and casts

Scientists use radiometric dating (radioactive decay) to measure...

• relative time (dating)

• absolute time (dating)

• half-lives

• time of day

Tags

NGSS.HS-PS1-8