The absence of heat
The core.
The Pacific
sonar
fossil, landfor, climatic
Currents in the outer core cause the inner core to spin a little faster than the rest of the planet.
Alfred Wegener
crust, mantle, core
inner core
convection
Subduction in the deep-ocean trenches
Sea-floor spreading along the mis-ocean ridge
radiation
asthenosphere
Convection currents in the mantle
conduction
transform
Pangaea
divergent, convergent, transform
The Atlantic
One plate slides under another and goes back into the mantle
basalt
What moved the continents
Tracking enemy subs during WWII
A fault.
What is causing the Atlantic Ocean to get wider?
What is the name of the supercontinent?
What is causing the Pacific Ocean to get smaller?
In the mid 1900s what did scientists use to map the ocean floor?
Heat transfer through empty space.
What is the name for the upper part of the mantle?
Where does the mantle's heat come from?
What is cold?
Oceanic crust is made if which type of rock?
What creates Earth's magnetic field?
Who proposed the theory of continental drift?
What causes the plates to move?
Heat transfer through direct contact.
Which ocean is getting wider?
The San Andreas Fault in Californis is which type of boundary?
What is a break in the Eart's crust called?
Name the 3 types of plate boundaries.
Name the 3 MAIN layers.
Which layer is solid nickel?
What is subduction?
What was the original use of sonar?
What piece of evidence was Wegener missing from his continental drift theory?
Heat transfer by the movement of heated fluid.
Which ocean is getting smaller?
What three types of evidence did Wegener use for his theory?
