Scientist who came up with the hypothesis of continental drift
Continents drifted to their current locations
Evidence such as the continents' puzzle-like fit and similar ________ were found on different continents
These type of clues are evidence of tropical plants in polar regions and glacial deposits in tropical regions
Mesosaurus fossils were found in South America and ________
The scientist who came up with the theory of sea floor spreading
__________ was used to discovered mountain ranges in the middle of many oceans
Magma rises at mid-ocean ridges because it is _______ dense
The location of the youngest rocks on the seafloor
Magnetic field ___________ are found on each side of mid-ocean ridges
Boundary where plates move together
Boundary where plates move apart
Boundary where plates slide past each other with little up or down movement
Boundary where plates with different densities collide and the denser plate sinks under the less dense plate
The driving force behind plate movements
All the continents were once joined together
Earth's crust and part of the upper mantle are broken into sections
The rigid layer where the plates are located
The plastic-like layer that the lithosphere moves on
Differences in temperature cause these types of currents to flow
Type of valley left when plates diverge
Fault-block ____________ formed at both convergent and divergent plate boundaryies
Earthquakes and ___________ are common along plate boundaries
The San Andreas fault in California is this type of plate boundary
Two continental plates (similar density) colliding will cause these to form because they
Who is Wegener?
What is continental drift?
What are fossils?
What are climate clues?
What is Africa?
Who is Hess?
What are sound waves/sonar?
What is less?
What is mid-ocean ridge?
What are reversals?
What is convergent?
What is divergent?
What is transform?
What is a subduction zone?
What are convection currents?
What is pangaea?
What are plates?
What is the lithosphere?
What is the asthenosphere?
What are convection currents?
What is a rift?
What are mountains?
What are volcanoes?
What is a transform boundary?
What are folded mountains?
