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?
What is a dense ball of solid metal?
100
Which layer is the coolest?
What is the crust?
100
Why do we differentiate between the outer and inner core?
Because the outer is liquid and the inner is solid.
100
The part of the mantle called the __________ is made of soft rock that bends like plastic.
What is the asthenosphere?
100
This was the name of the supercontinent that existed over 200 million years ago.
What is Pangea?
200
This layer of the Earth is composed of Oxygen, Silicon, and Aluminum.
What is the crust?
200
Which layer is the hottest?
What is the core?
200
Why is the inner core solid?
What is extreme pressure in the outer core?
200
The lithosphere is broken into sections called _________.
What is tectonic plates?
200
This theory explains why the shorelines of continents fit together and why you can find fossils and plant life in opposing environments.
What is Continental Drift?
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
Which layer is warmer, The lithosphere or the asthenosphere?
What is the asthenosphere?
300
The outer core is composed of ______________.
What is liquid nickel and iron?
300
The lithosphere is broken into sections called plates, which float on top of the _____________.
What is the asthenosphere?
300
Mid ocean ridges and sea floor spreading are a result of this plate boundary.
What is a divergent plate boundary?
400
Earth’s solid inner core is surrounded by the hot, molten metal of which layer?
What is outer core?
400
Which layer is warmer, The outer core or the inner core?
What is the inner core?
400
The inner core is composed of _________________.
What is solid iron and nickel?
400
The mantle makes up what percentage of the Earth's mass?
What is 67%?
400
The Rocky Mountains were most likely formed by this plate boundary.
What is a convergent plate boundary?
500
The inner core is composed of solid ____________.
What is iron?
500
What happens to temperatures as you go deeper into the Earth?
What is they increase or get higher?
500
Scientists think that _____________ is made of liquid, which moves to produce Earth’s magnetic field.
What is the outer core?
500
This layer makes up the lower part of the mantle and the top part of the outer core.
What is the mesosphere?
500
Earthquakes occur as result of _______________.
What is plate movement (at any of the 3 plate boundaries)?