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súrum gúrkum
piekel
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turshi
100
What are the three main layers of the earth?
Core, mantle, crust
100
Which part of the crust varies more in size?
Continental
100
How much of Earth’s volume does the core make up?
16%
100
Is the lithosphere liquid?
No
100
What is the fastest type of seismic wave?
P-wave
200
What happens to the chemical makeup of objects deeper in the earth?
It changes as you go deeper
200
What two rocks make up most of the mantle?
Iron and Magnesium
200
How much of Earth’s mass does the core make up?
32%
200
Is the Asthenosphere solid, liquid, or semi-solid?
Semi-solid
200
Is the outer core solid or liquid?
Liquid
300
What happens to density as you go deeper into the earth?
It increases
300
How much of the Earth’s volume does the mantle make up?
82%
300
Is most of the material in the Earth solid or liquid?
Solid
300
What tool is used to detect seismic waves?
A seismograph
300
Which type of seismic wave is more destructive?
S-wave
400
What properties are responsible for creating the layers of the earth?
Temperature and pressure
400
How much of the Earth’s mass does the mantle make up?
68%
400
What is responsible for the semi-liquid state of some layers?
A balance between temperature and pressure
400
What do seismographs compare?
Strength and arrival times of seismic waves
400
How do S-waves travel?
Up-and-down
500
What are the two parts that make up the crust?
Oceanic crust, continental crust
500
What two rocks make up most of the core?
Iron and nickel
500
What is the outer zone of the Earth?
Lithosphere
500
What is a seismogram?
The data output from a seismograph
500
How do P-waves travel?
Back-and-forth