Layers, Like an onion!
Earthquakes
Pangaea?!
Volcanoes
Rock n' Roll
100
Earth's outermost layer, which varies in thickness from about 5km to 60km and is separated from the mantle by the Moho Discontinuity.
What is the Crust?
100
Point of Earth's surface directly about an earthquake's focus.
What is Epicenter?
100
Hypothesis proposed by Alfred Wegener that states that continents have moved slowly to their current locations on Earth.
What is Continental Drift?
100
A large opening formed when the top of a volcano collapse.
What is a Caldera?
100
The largest intrusive igneous rock bodies that form when magma cools underground before reaching Earth's surface.
What is Batholith?
200
Very dense, solid center of the Earth that is made of mostly iron with smaller amounts of oxygen, silicon, sulfur, or nickel.
What is Inner Core?
200
In an earthquake, the point beneath Earth's surface where energy release occurs.
What is Focus?
200
The cycle of heating, rising, cooling, and sinking that is thought to be the force behind plate tectonics.
What is Convection Current?
200
A steep-sided volcano made of loosely packed tephra.
What is a Cinder Cone Volcano?
200
An intrusive igneous rock body formed when magma is squeezed into a vertical crack that cuts across rock layers and hardens.
What is a Dike?
300
Largest layer inside Earth, lying directly above the outer core and that is made mostly of silicon, oxygen, magnesium, and iron.
What is Mantle?
300
Measure of the energy released by an earthquake.
What is Magnitude?
300
The single large landmass made up of all the continents connected together that broke apart 200 million years ago.
What is Pangaea?
300
A volcano formed by alternating layers of tephra and lava and that is found mostly where Earth's Plates come together.
What is a Composite Volcano?
300
This rock is formed when melted rock material from inside the Earth cools.
What is Igneous Rocks?
400
Liquid core that surrounds the Earth's solid inner core, and that is made mostly of iron.
What is the Outer Core?
400
Break in rock due to tension forces, where rock above the fault surface moves downward in relation to rock below the fault surface.
What is a Normal Fault?
400
The surface along which rocks break and move.
What is a Plate?
400
Steep-walled depression around a Volcano's vent.
What is a Crater?
400
This type occurs when sediment collecting in layers forms rocks.
What is Sedimentary Rocks?
500
Plastic-like layer below the lithosphere.
What is the Athenosphere?
500
Waves that travel outward from an Earthquake's focus and causes particles in rocks to move back and forth in the same direction the wave is moving.
What is Primary Waves?
500
A Theory that Earth's crust and upper mantle are broken into sections that move around on a plastic-like layer of the mantle.
What is Plate Tectonics?
500
A location in the mantle that is hotter than any other areas and the melts rock, which is forced up toward the crust as magma.
What is a Hot Spot?
500
These rocks are made when existing rocks are heated or squeezed but not melted.
What is Metamorphic Rocks?
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