Earth’s inner core is a _____________
a. a dense ball of solid metal.
b. a layer of molten metal.
c. a layer of hot rock.
d. a layer of rock that forms Earth’s outer skin.
What is a dense ball of solid metal?
100
Scientists think that the ____________________, made of liquid iron and nickel, moves to produce Earth’s magnetic field.
What is the outer core.
100
The outermost layer of Earth is called the mantle.
What is false, it is called the crust.
100
What is the correct order (starting from the surface) of Earth’s layers?
What is crust, mantle, outer core, inner core.
100
Geologists obtain ___________about Earth’s interior by recording and studying seismic waves
What is indirect evidence?
200
_________is a rock with a fine, dark texture that makes up the oceanic crust.
What is basalt?
200
When you touch a hot plate, the transfer of heat from the plate to your hand is called ____________________.
What is conduction.
200
Earth’s weather is the thin envelope of gases that surrounds Earth.
What is false. It should be earth's atmosphere.
200
The lithosphere is broken into sections called _________
What is plates?
200
Using data from seismic waves, geologists have learned that Earth’s interior is made up of several ____________.
What is layers.
300
Earth’s mantle is composed mainly of
a. molten metal.
b. a layer of molten rock.
c. of solid metal.
d. granite and basalt
What is a layer of molten rock?
300
According to the theory of plate ____________________, Earth’s plates move very slowly in various directions.
What is tectonics.
300
The upper layer of Earth is broken into more than a dozen continents that move very slowly in various directions.
What is false. It should be "dozen layers."
300
The lithosphere is broken into sections called plates, which float on top of the _____________
What is the asthenosphere?
300
Scientists know that the deeper inside the Earth, the ___________ pressure and temperature and pressure.
What is greater or increase.
400
Earth’s solid inner core is surrounded by the hot, molten metal of which layer?
What is outer core?
400
Geologists learn about Earth’s interior by studying _________________________, which move through Earth.
What is seismic waves.
400
Mantle material rises in convection currents because heated materials become more dense.
What is false. "less dense."
400
Which of Earth’s layers is the thickest?
400
Geologists learn about Earth’s interior by studying __________________which move through Earth.
What is seismic waves.
500
The inner core is composed of solid ____________.
What is iron.
500
In the mantle, heat is transferred as soft rock flows slowly in cycles known as _________________________.
What is convection currents.
500
To study Earth’s interior, geologists often rely on indirect methods, such as evidence from fossils.
What is false. It should be "evidence from seismic waves."
500
The part of the mantle called the __________ is made of soft rock that bends like plastic.
What is asthenosphere.
500
Holes drilled several kilometers into Earth’s crust provide direct evidence about Earth’s interior in the form of ____________.