Volcanoes
What is the difference between magma and lava?
Lava is above the ground, while magma is under the ground.
What is the name of a scientist who studies earthquakes?
Seismologist
What are the three types of plate boundaries?
Convergent, Divergent, and Transform
What is a convection?
The heart transfer of a fluid in which hot fluid rises and cold fluid sinks, setting up a cycle.
What is a subduction zone?
Places along a convergent boundary where one plate moves under another plate.
What is the name of a scientist who studies volcanoes?
What is the place where two tectonic plates meet called?
A fault
How many main chunks are the lithosphere broken into?
7~8
How do convection currents relate to plates?
They move or shift plates.
What is a fault?
Breaks in Earth’s crust either within a plate or between plates.
What is the difference between a dormant and an extinct volcano?
A dormant volcano is not presently erupting but might erupt in the future, while an extinct volcano is not expected to erupt again.
What is the commonly used magnitude scale for earthquakes?
The Richter Scale
Who proposed that all continents were originally joined together in a big continent called Pangaea?
Alfred Wegener
While the outer core is liquid iron, this semi-solid, plastic-like layer of the upper mantle is where convection currents directly drive plate tectonics. What am I?
The asthenosphere
What are deep areas where the oceanic plates are converging and sinking?
Trenches
They are near the borders between land and water.
Why are earthquakes so hard to predict?
Answers may vary, but it should be along the lines of how we can’t see underground, and even if we could slightly predict a range, we wouldn’t know exactly when it will happen!
What can a constructive plate process form, and what are some possible deconstructive processes?
They can form new mountains, or new crust.
Some examples are gravity and weathering.
If the earth’s heat dissipated, then the tectonic plates would become still.
True
What is the process where the whole crust rises up without breaking or deforming?
Uplift
What is a crack in the Earth's crust where hot rock, ash, and gas escape from the mantle also known as?
A volcano vent
What is the place inside the Earth where the earthquake starts deep below the surface called?
Focus, or Hypercenter
What type of convergent plate boundary has extreme crustal thickening and neither subducts significantly?
Continental-Continental boundary
The oldest parts of the ocean floor are no older than 200 million years, a fact directly explained by the sinking of crust in this process.
Subduction
What is a mountain range that form on the ocean floor along a divergent boundary?
Spreading Ridge