Theory of Continental Drift
Who came up with the Theory of Continental Drift?
Alfred Wegener
Which of Earth's layers is the hottest?
The inner core
What is magma called when it is on the surface of the Earth?
Lava
The size/severity of an earthquake is called what?
Magnitude
Convergent boundary
Which two continents did Alfred Wegener noticed had an almost perfect fit?
What subsection of Earth's layers do the tectonic plates move/float on?
Asthenosphere
What kind of rock is formed from the compaction and cementation of sediment?
Sedimentary rock
What is the point on Earth's surface directly above where an earthquake occurred called?
Epicenter
This kind of boundary is created when two tectonic plates slide past each other, going in opposite directions.
Transform boundary
What kind of scientist was Alfred Wegener?
Meteorologist
What subsection of Earth's layers makes up the tectonic plates?
Lithosphere
When magma cools, it becomes what kind of rock?
Igneous rock
What kind of boundary typically creates volcanoes?
Convergent boundaries (continental and oceanic). **Divergent will be accepted.
This type of boundary is formed when two tectonic plates move in opposite directions/away from each other.
Divergent boundary.
What was missing from Alfred Wegener's Theory of Continental Drift that we now have in the Theory of Plate Tectonics?
How/Why the plates move. (And that they are plates, not just continents drifting).
How many major tectonic plates are there?
Seven
If igneous or sedimentary rock are subjected to heat and pressure, what kind of rock do they become?
Metamorphic rock
What is the name of the area where most of Earth's active volcanoes reside?
The Pacific Ring of Fire
What type of boundary is the San Andreas fault?
Transform boundary
What four pieces of evidence did Alfred Wegener use to support his theory?
Apparent fit of continents, fossil correlation, mountain and rock correlation, paleoclimate data (past climate data).
What causes the tectonic plates to move?
Convection currents in the Earth's mantle.
What is the main cause of the rock cycle? (What powers it?)
Internal heat from the Earth.
What does seismic mean?
Pertaining/related to earthquakes
The Mid-Atlantic Ridge is an example of what kind of plate boundary?
Divergent boundary