Plate tectonics
What is the Wilson cycle?
Suggestion that Earth goes through repeated cycles of super continent formation and separation that lasts on average 500 million years ago or so. VOLCANO ERUPTION MOVE BACK 1 SPACE!
What are the 3 layers of the Earth?
Crust, Mantle, Core
The 3 types of waves:
Transverse
Longitudinal
Surface
Astronomy
The oldest science, but the scales are nearly impossible to understand making running experiments difficult, study of the stars.
Tectonic plates are on the...
Lithosphere/crust
How do we know the continents move?
Fossils and minerals found in different continents, the look of how all the continents fit together, Sea floor stripping
How do we know what is inside of the Earth?
Asteroid composition, Magnetic fields, Density of the planet, density increases as you move towards the core.
Fastest wave:
Primary
Collections of gas and dust in space being pulled together by gravity.
Nebula
Which one of the 5 layers of the Earth are like silly putty?
The Athenosphere!
Why don't continents move alone?
The continents and ocean move together on a "plate"
What are the 5 layers by properties?
Lithosphere, Athenosphere, Mesosphere, Inner core, and outer core.
What wave moves in a circular motion?
Suface waves!
debris builds up from constant collisions, creating together objects, more gravity = more collisions
How Earth was built. AN EARTHQUAKE GO BACK 1 SPACE!
What Earth layer is at the bottom of the mantle?
Mesosphere!
Where different plates touch, considered hazerdous...
Techtonic Boundaries
What is the behavior of the layers based on?
heat and pressure, EARTHQUAKE MOVE BACK 2 SPACES!
Seismic waves move...
Away from their source in all direstions.
Waves change speeds in new substances, more faster in dense objects.
Wave Speed
What layer of the earth can we sample directly?
Crust! VOLCANO MOVE BACK 1 SPACE
Techtonic plates can be...
major or minor A VOLCANO ERUPTION MOVE BACK 3 SPACES!
How does the Earth change phase?
Changes Energy phases
Waves need a ~(BLANK)~ source to travel through
Electromagnetic or mechanical waves
Left over matter from the nebula that spun and flatten around the earth
Protoplanetary Disk
Where can the Mantle be sampled?
Hot spots!