Layers of the Earth
What is the outermost layer of Earth called?
The Crust
The intensity of magnitude of Earthquakes is measured using the ______________ Scale
Richter
Volcanoes can form from both _______________ boundaries and __________________ boundaries
Convergent / Divergent
Divergent / Convergent
How many tectonic plates are there in total?
17
Earthquakes on the Richter Scale humans cannot feel must be between ______ and _________.
What is the innermost layer of the earth?
The Inner Core
The Richter Scale is a scale of
______ to _____ where the higher the number the more powerful the Earthquake is.
0 to 8
Molten rock below Earth's surface is called ___________ / Molten Rock above Earth's surface is called _____________.
Magma / Lava
tectonic plates that are coming together are called?
Convergent / Convergent Plates
Waves that cause all the damage to structures on the crust are called _____________ waves
Surface
What is the thickest layer of Earth called?
(It makes up 85% of the mass of Earth!)
Mantle
Slide, Rub, or Grind.
Slide is the best answer
What are the three phases of volcanoes?
1.
2.
3.
Active -- They can and likely will still explode
Dormant -- They haven't exploded in 10,000 years and most likely won't again.
Extinct -- They haven't exploded in 10,000 years and will not again.
Divergent / Divergent Plates
Tools called ____________ or ____________ measure the intensity of an Earthquake!
(get one, and you get the points!)
Seismograph / Seismometer
Which layer of the earth is made of Liquid Metal?
Outer Core
What kind of "boundaries" cause Earthquakes?
Sliding, Strike-Slip, Transform.
Any are fine
What are the four types of volcanoes?
1.
2.
3.
4.
Plates that slip past one another creating friction, stress, and pressure and ultimately end up releasing tons of seismic waves aka Earthquakes are called?
Transform / Sliding / Strike & Slip Boundaries
The name of the "Super Continent" that existed during early Earth is ______________________.
Pangea
In which layer of Earth is the "asthenosphere" located?
Mantle
What is the measurement of exactly how much energy is released when an earthquake happens called?
Seismic Moment
What is the name of the 20,000 mile stretch of the pacific ocean that contains 425 different volcanoes.
The Ring of Fire
Oceanic Plates are thinner but _____________ than continental plates.
Heavier
The name of the scale for how powerful a volcano's eruption is, is from 0-8. What is the abbreviation of the name of the form used to categorize it?
VEI -- Volcanic Explosivity Index