T6L1/2/3: History of Earth

Use relative dating to determine which rock layer is oldest

ℹ️ Layer D is an igneous intrusion

ℹ️ E is a fault line

• B

• C

• D

• E

Tags

NGSS.MS-ESS1-4

Use relative dating to determine what happen last

ℹ️ Layer D is an igneous intrusion

ℹ️ E is a fault line

• A

• B

• C

• D

• E

Tags

NGSS.MS-ESS1-4

Use relative dating to determine which fossil is oldest.

• Ammonite

• Dinosaur

• Plant

• Bird

Tags

NGSS.MS-ESS1-4

What can a scientist infer about these two sites

• At one time there was water

• They are in the exact same area

• Site 2 is older because of the intrusion

• The oldest rocks are 450 million years old

Tags

NGSS.MS-ESS1-4

What law do scientists use to determine relative dating for rock layers?

• Law of Superposition

• Law of Geological Time

• Law of Rock Layering

• Law of Archeology

Tags

NGSS.MS-ESS1-4

What is absolute dating (radiometric dating) based on?

• Decay of unstable atoms (isotopes)

• Detection of ionic bond charges

• Switch of a proton into a new element

Tags

NGSS.HS-PS1-8

Which type of rock dating is used to measure the age of the Earth?

• ABSOLUTE: Isotopes of

  Uranium decay to Lead or
  Potassium decay to Argon

  ℹ️ accurate to 5 billion years

• ABSOLUTE: Carbon 14 decay
  (into Nitrogen isotope)

  ℹ️ accurate to 60,000 years

• Relative dating

  comparing Precambrian rock to different sedimentary layers

Tags

NGSS.MS-ESS1-4

How do INDEX FOSSILS provide evidence for evolution?

• many fossils found only in one site, existing for many years

• wide distribution in similar rock layers, existing for a short period of time

• only a few fossils found in a very specific area

Tags

NGSS.MS-LS4-1

Match the fossil example with its type.

• Preserved Remains

• 
• Mineral Repla

• 
• Cast Fossil

• 
• Mold Fossil

• 
• Trace Fossils

• 

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Correctly order geological time
(beginning of time to present day)

• Cenozoic Era

• Paleozoic Era

• Mesozoic Era

• Precambrian Time

Tags

NGSS.MS-ESS1-4