Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
What are the Four major layers of the earth?
|
crust, mantle, outer core, inner core
|
|
|
What is the thinnest layer?
|
the crust
|
|
|
What is the thickest layer?
|
the mantle
|
|
|
What is the hottest layer?
|
the inner core
|
|
|
What rock makes up the oceanic crust?
|
basalt
|
|
|
What rock makes up the continental crust?
|
granite
|
|
|
Which crust is thicker the oceanic or continental?
|
continental
|
|
|
Describe the lithosphere?
|
It is the upper part of the mantle. It is 100km thick and is attached to the crust and floats on top of the asthenosphere.
|
|
|
Describe the asthenoshere?
|
This is the softest layer of the mantle under the lithosphere. 1,000 degrees C. It bends like palstic and flows slowly.
|
|
|
What happens when you go deeper into the mantle?
|
The pressure increases and it gets much hotter
|
|
|
What is the core made of?
|
nickle and iron(metal)
|
|
|
What is the size of the core?
|
about 3,486km thick and slightly smaller than the moon
|
|
|
Describe the outer core?
|
It is a layer of thick liquid that is under great pressure.
|
|
|
Describe the inner core?
|
It is a layer of solid metal under so much pressure that it became a solid.
|
|
|
What types of rock make up the crust?
|
igneous, sedimentary, metamorphic
|
