E3 Unit 4 Geological Time Scale

How old is the Earth?

• 5 billion years

• 3.5 billion years

• 100 million years
• 4.6 billion years

Tags

NGSS.MS-ESS1-4

Which of the following is most prevalent in the Cenozoic Era?

• Birds

• Marine Animals

• Reptiles

• Mammals

In what eon are fossils most prevalent?

• Proterozoic

• Hadean

• Archean

• Phanerozoic

Tags

NGSS.MS-LS4-1

Carbon- 14 can be used to date objects that are

• extremely old

• recent

• inorganic

• still alive

In which time period are we currently living?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic Era

Which fossil is the youngest?

• fossil A

• fossil B

• fossil C

• fossils A and B are the same age

Tags

NGSS.MS-ESS1-4

Determines the sequence of past events but not the age in years.

• Absolute age

• Relative age

• Real age

• New age

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Geologists assume the newest rock layers are on top of the older ones, unless some type of disturbance occurs, in known as …

• Law of Inclusions

• Law of Crosscutting

• Law of Conservation

• Law of Superposition

Tags

NGSS.MS-ESS1-4

Uses the decay of radioactive elements to find the ___________________________ of a rock or fossil.

• Relative age

• Absolute age

• New age

• Real Age

Tags

NGSS.HS-PS1-8

These specialized fossils indicate to geologists the boundaries in geological time and determine the age of rocks.

• Index fossils

• Limestone fossils

• Amber fossils

• Cast fossils

Tags

NGSS.MS-ESS1-4