Earthquakes
What is an earthquake?
(use no more than 5 words)
A sudden ground movement
around 225,000 people
At its most basic, what is a volcano?
A vent in earth's crust
What is a tectonic plate?
A large chunk of the lithosphere
What is the name of the geological formation that is a large volcanic crater formed by an explosive volcanic eruption?
Caldera
Where does the energy from an earthquake originate?
The energy stored in rocks
Name some reasons why a tsunami is often far more dangerous than the earthquake it was caused by?
...
At its most basic, what is magma?
Melted mantle rock
How can we best identify plate boundaries
Earthquake epicenters
What is the name of the geological process by which rocks are broken down and altered by physical and chemical processes at the Earth's surface?
Weathering
Describe the difference between the focus and epicenter.
Focus = below ground where rocks break
Epicenter = area directly above the focus above-ground
The highest point in a tsunami wave is called _____ and the lowest point is called ______
crest / trough
What are the 3 stages of a volcano's life cycle?
Active --> Dormant --> Extinct
What are the differences between convergent, divergent, and transform plate boundaries?
What is the name of the geological feature that is a large flat-topped mountain formed by volcanic activity?
Plateau
Name the 3 places earthquakes can happen in relation to plate boundaries, and which is the least common.
Convergent and transform boundaries, intraplate earthquakes (least common)
About 23,000
What determines the volatility of a volcanic eruption?
The amount of gas content in the magma
Pangea is the theorized __________ that is one of several _________s in the __________ cycle.
(It's the same word)
Supercontinent
How many questions/points will the exam be?
Explain elastic rebound theory in your own words.
...
Name at least 5 of the countries directly affected by the 2004 Indian Ocean Tsunami.
Options:
Indonesia, Sri Lanka, Thailand, India, Kenya, Somalia, Maldives, Burma, Malaysia, Bangladesh, Seychelles, Madagascar, Tanzania, etc.
What type of volcano is... Hawaiian Islands, Yellowstone, Mt. Rainier, Mt. St. Helens, Icelandic Volcanoes
Hotspots - Hawaiian Islands, Yellowstone
Convergent - Mt. Rainier, Mt. St. Helens
Divergent - Icelandic Volcanoes
Explain the theory of plate tectonics in your own words.
Plates are made of lithosphere with oceanic and/or continental crust. Plates move around by seafloor spreading, driven by mantle convection. As the seafloor spreads, oceanic crust is created and pushes the plates away from the continental ridge. If a continent sits on top of a plate that is being pushed away, it will drift away as well.
What is Mr. Gray's favorite film series EVER?
The Lord of the Rings
(It's not even close, far and away the greatest film achievement ever:)