Geological Time 1st Semester 2019

Which layer is the oldest?

• A
• B
• C
• D

According to all of the scientific evidence that we can gather; how old is the Earth?

• 6,000 years
• 3 years
• 4.6 billion years
• 3 million years

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

Describe law of superposition-

• An igneous rock layer formed when magma hardens beneath Earth's surface

• The age of rock given as the number of years since the rock formed

• The geologic principle that states that in undisturbed rock layers, the oldest rocks are on the bottom

• An igneous rock layer formed when lava flows onto Earth's surface and hardens

Tags

NGSS.MS-ESS1-4

The trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock

• varve
• index fossil
• trace fossil
• fossil

The age of an object in relation to the ages of other objects is known as what?

• relative age
• absolute age
• half-life
• unconformity

The earliest span of time in Earth history is called...

• Precambrian time

• Phanerozoic time

• Homeroom

• Cenozoic time

Describe Precambrian Time.

• makes up 88% of Earth's history. There are very little fossils from this time because it was so long ago and there was very little life on the planet at the time.
• It is based on Relative time and is compared to other times.
• It is  present day

What was the name of the supercontinent that formed about 260 million years ago?

• Pangea
• Rodinia
• Texas
• Eurasia

Which technique can be used to determine the exact age of a rock?

• Radiometric dating

• Relative dating