Earth Unit

What conclusion might scientists draw if they found drastic changes in the types of sediment in different rock layers?

• the rock layers in that area formed slower than surrounding areas

• the rock layers in that area were not exposed to normal weather

• the area was likely under water for long periods of time

• the area went through major changes in climate over geologic time

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS1-4

What evidence indicates that the Earth is 4.6 billion years old?

• using the radiometric dating of early Earth rocks

• adding up the layers of rock strata

• using carbon 14 dating methods on earliest life forms

• calculating the cooling rate of the Earth's mantle

Tags

NGSS.HS-ESS1-6

Large crystal formations in igneous rocks reveal what about the conditions that formed the crystals?

• that it is made of a mineral that forms into crystals

• that it cooled slowly under water

• that it cooled slowly deep beneath the surface

• that is cooled quickly near the surface

What is a geodynamo?

• The gravity of the Moon and Sun pulling against the Earth create a strong tidal magnetic field.

• The force created by the Earth's north and south magnetic poles.

• The Earth's rotation and convection forces cause the liquid outer iron core to move creating a magnetic field.

• The circulation of the liquid core back through the mantle produces a powerful magnetic field.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the inner core of the Earth made of?

• solid iron, liquid nickel

• liquid iron & nickel

• solid nickel, liquid iron

• solid iron & nickel

Tags

NGSS.MS-PS1-1

What is the outer core of the Earth made of?

• liquid iron & nickel

• solid nickel, liquid iron

• solid iron & nickel

• solid iron, liquid nickel

A dinosaur skeleton would most likely be found in the form of a ____.

• compression

• petrified fossil

• mineral deposit

• sedimentary rock

Tags

NGSS.MS-LS4-1

What is the largest segment of geologic time?

• epoch

• period

• era

• eon

What is the smallest segment of geologic time?

• period

• age

• eon

• era

Tags

NGSS.MS-ESS1-4

What kind of volcano are we generally talking about when we think of the term “volcano”?

• cinder cone

• laccolith

• shield

• composite (strato)