Earth Science 8th Grade Flashcards
Transition zone is between upper and lower mantle? True or false
True
Scientists have dug unto the center of the earth? True or false
False they never have because it’s too hot
Boron is an all layers of the mantle and contributes to magnetic field. True or false
False Iron is in outer core and contributes to magnetic fileds
Moho is a type of rock I’m inner core. True or false
False it seperate the mantle and crust
Thin hard layer of earth?
Crust
Central portion
Core
Crust on continents
Continental crust
Fastest seismic waves
P
Layer between mantle and crust
Moho
2nd fastest seismic waves
S
Outermost rigid layer
Lithosphere
Layer that’s like putty
Asthenosphere
Crust has variety of features like….
Oceans mountains and valley
Why does the earth have magnetic fields
Outer core has convection currents that flow through molten irons and other metals causing electric currents forming magnetic fields
Crust is solid, mantle is ____ solid, outer core is
I quid, inner core is ______
Molten solid, solid
What part of the earth can be 0°c
Crust
Inner core is as hot as _____
Sun
Thickest layer is _____
Core
Thinnest layer is ____
Crust
Layer with most volume is _____
Mantle
Essay- what would you experience if you were to travel to center of earth
Rocks at first, then increasing pressure and heat, and even one layer of liquid
Essay 2- how does God sustain crust so we can live on it?
He made shelter, land, water, food, etc
S waves travel through Atlantic and p waves travel through pacific ? True or false
False, p waves travel through solids, liquids, gases and S waves only travel through liquids. They are both seismic
