Plate Tectonics
Earthquakes
Volcanoes
Tsunamis
Meteor Impacts & Earth Layers
100
Who developed the theory of plate tectonics?
Alfred Wegener
100
Name 2 types of seismic waves that occur with earthquakes.
P Wave, S Wave or surface waves
100
What is the difference between magma and lava?
Magma = inside the Earth Lava = once magma reaches Earth's surface
100
Are tsunamis the same as a tidal wave? Explain.
No - tidal waves are caused by gravitational pulls
100
What is an impact crater?
formed when a meteorite greater than 3 feet in diameter hits the surface
200
What layer of the Earth make up plate tectonics?
lithosphere
200
What machine measures earthquakes?
seismograph
200
Name an island that is a hotspot volcano.
Hawaii or Iceland
200
Where do tsunamis mostly occur?
The Ring of Fire
200
What layer of the Earth do we walk on?
crust
300
What was PANGAEA?
the theory that continents were once all connected as a super continent
300
Name 2 scales used to measure earthquakes.
Richter, Mercalli or Moment Magnitude Scale
300
Name 2 types of volcanoes.
Composite/strato, shield, or cinder cone Or caldera
300
Name 2 causes of tsunamis.
Underwater earthquake, volcano or tsunami OR meteor impact
300
What is the inner most layer of the Earth called?
inner core
400
Name 2 types of plate tectonic boundaries.
convergent, divergent, or transform
400
What is the epicenter?
The point on the surface directly above the focus
400
What is viscosity?
How fast or slow lava moves based on thickness and temperature
400
What are the signs of an approaching tsunami?
water receding from the beach; nearby earthquake underwater
400
What layer of the Earth causes plate tectonics to move?
asthenosphere
500
Give me 1 piece of evidence used to explain the theory of plate tectonics and PANGAEA.
mountain ranges, fossils, natural resources match up on continents
500
What is the focus?
The area beneath the Earth's surface where the plate tectonics move
500
What are the 3 stages of a volcano's life cycle?
active, dormant, extinct
500
What is a tsunami?
a large, fast moving wave caused by a disturbance in or under the water
500
What is the only totally liquid layer of Earth?
outer core
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