Earth's History Flocab

What is absolute age?

• comparing a rock layer to other rocks

• a measure of the radioactive decay of isotopes

• measuring the dimensions of a rock

• comparing the rocks to the fossils in the area

Identify the Era:
First forms of life appeared in this era.

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Tags

NGSS.MS-LS4-1

How is the geologic time scale divided?

• major extinctions

• major change in species

• major change in geology

• all of the above

Tags

NGSS.MS-ESS1-4

A teacher gave students this diagram of rock layers. The teacher directed the students to determine the relative age of each rock layer based only on the information presented in the diagram.

Which method can BEST be used by the students to determine the relative age of these layers?

• radiometric dating

• rock type evaluation

• the law of superposition

• principle of uniformitarianism

Tags

NGSS.MS-ESS1-4

Which of the following BEST describes the fossil at Point 3 when compared with the fossils at Points 1 and 2?

• The fossil at Point 3 is less common

• The fossil at Point 3 is smaller.

• The fossil at Point 3 is older.

• The fossil at Point 3 is more complex

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Which is the BEST conclusion that can be made from comparing the diagrams?

• Elephant species have changed over time.

• Ancient elephants were better adapted than modern elephants

• Elephant habitats have remained the same over time.

• Elephant fossil evidence is widespread and complete

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which statement best describes the Law of Superposition?

• Each sedimentary layer of rock represents 1,000 years of Earth’s age, much like the rings of a tree.

• In undisturbed layers of sedimentary rock, the upper rock layers are older than the lower rock layers.

• In undisturbed layers of sedimentary rock, the lowest layers contain the older rocks.

• Rocks that form near volcanoes are older than surrounding rock.

Tags

NGSS.MS-ESS1-4

The diagram shows different layers of sedimentary rock. Each layer is labeled with a letter.

• The left part of Layer B is younger than the right part.

• The left part of Layer F is the same age as Layer M.

• Layer R is older than Layer M

• Layer I is older than Layer B

Tags

NGSS.MS-ESS1-4

The geologic map below shows several rock formations exposed when a road is cut through a hillside.

Which formation in this geological map is youngest?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-ESS1-4

A fossil discovered in Colorado dates from the early Mesozoic era. A year later a similar fossil is found in Wyoming that also dates from the early Mesozoic era. These two organisms most likely lived in

• the same environment at about the same time.

• the same environment at different times.

• different environments at about the same time.

• different environments at different times.

Tags

NGSS.MS-LS4-1