Earth's Interior
Moving Continents
Boundaries
heat transfer
winds
100
List the 4 main layers of Earth's interior from outer to inner.
crust, mantle, outer core, inner core
100
What is Wegener's hypothesis called that stats the continents were once joined together in one single land and have since slowly drifted apart?
continental drift
100
In what process does molten material rise form the mantle and erupt along the mid ocean ridge?
sea floor spreading
100
What is the transfer of heat by contact (touching)?
conduction
100
Winds are caused by differences in ___________________.
air pressure
200
What layer is a dense ball of solid metal?
inner core
200
What is one piece of evidence used by Wegener to support that the continents were once connected in a single land mass?
landforms, fossils, or climate
200
In what process does the ocean floor sink beneath a deep ocean trench and back into the mantle?
subduction
200
What is the heat transfer through empty space, like from a campfire?
radiation
200
How are local winds different from global winds?
They are caused by unequal heating in a small area.
300
What layer is made of hot rock?
mantle
300
What type of forces shape earth's surface by building up mountains and landmasses?
constructive
300
What type of boundary occurs when 2 plates slip past each other moving in opposite directions?
transform boundry
300
Heat within a fluid is convection. In convection if the heat source is removed what will happen to the convection currents?
They will stop
300
What types of winds generally blow in specific directions over long distances?
global winds
400
Earth's magnetic field results form the spinning of the _____________________.
inner core
400
What was the was the super continent called that existed millions of years ago?
pangae
400
What type of boundary occurs when 2 plates come together and form mountains?
convergent boundry
400
What type of radiation from the sun heats up Earth's atmosphere?
infrared -heat ultraviolet - sunburn (blocked by ozone) visible light - light see
400
What is the process by which gases hold heat in the atmosphere?
green house effect
500
What is the geological theory that states pieces of Earth's lithosphere are in constant slow motion?
Plate Techtonics
500
What causes the movement of Earth's plates?
convection currents (in the asthenosphere)
500
Where do volcanic belts form?
along boundaries of Earth's plates
500
Convection currents take place because cold air is more _______________________ than warm air.
dense convection currents heat the troposphere
500
What is the coriolis effect?
Earth's rotation makes winds seem to curve.
M
e
n
u