Convection
Name the 3 types of heat transfer
Convection
Conduction
Radiation
False: gas and water
Name of the supercontinent.
What process is happening in the image.
(wait Mr. Davidson has to pull it up)
Sea floor spreading
Plate Tectonics
Where in the Earth's core does convection currents happen?
Mantle
What is the name of the major belt where MOST of Earth's volcanoes found?
Ring of Fire
Who came up with the theory of continental drift?
Alfred Wegener
Long chain of mountains that rise up from the ocean floor
Mid Ocean Ridge
Name the 3 boundary types
1) Convergent
2)Divergent
3) Transform
Where does warm and cold air want to go?
Warm = rises
Cold = sinks
What is magma when it reaches the surface?
Lava
What are the 3 evidences that Wegener used to prove that the continents were once all joined together?
1) Landforms/ features
2) Fossils
3) Climate change
*Also said they looked like they fit like a puzzle*
What happens to the age of the rock has it gets further away from the mid ocean ridge?
It gets older :(
Name of the land form that happens ON LAND when 2 plates diverge or pull apart.
Rift Valley
Density
The Hawaiian Islands were caused by what?
(An area where material from deep with Earth mantle rises through crust and melts to form mountains)
Hot Spot
What 2 reptile fossils did Wegener use to prove that South American and Africa were once joince?
1) Mesosaurus
2) Lystrosaurus
________ form because the ocean floor plunges into deep underwater canyons. Due to subduction zones
Deep Ocean Trenches
What is the name of the 2 major tectonic plates that meet on the California coastline. These plates cause a Transform boundary, which cause many tremors and earthquakes
North American Plate and Pacific Plate
Explain how convection currents in the mantle cause our plates to move?
Convection causes the cool parts to sink and warm parts to rise. This causes a slow moving circular motion in the mantle making the plates move slowly.
Name 1 major island arc on Earth
1 of the following is correct:
Japan
New Zealand
Caribbean islands
Why was Wegener theory rejected by most scientist?
He couldn't explain how the continents pushed or pulled apart
What 3 evidence do we use to explain sea floor spreading?
1) Ocean Material (look like pillows)
2) Magnetic Stripes
3) Drilling Samples
*also sonar*
Which ocean is getting wider and which ocean is shrinking?
Wider = Atlantic
Smaller = Pacific