Plate Tectonics
What is a Seismic Wave
A Seismic Wave travels out from the center of the earthquake.
What is a Hydrothermal Vent?
A deep-sea geyser that forms as seawater sinks down through cracks in the oceanic crust and then releases extremely hot mineral rich water back up through the cracks.
What are the layers of the Earth?
Inner Core, Outer Core, Mantle, and Crust.
How do Scientists Measure Earthquakes? Hint: There are two answers!
There is the Richter Scale and the Modified Mercalli Scale.
What are the 3 types of Rocks?
Igneous, Sedimentary, metamorphic.
What is Continental Drift?
The Continental Drift is when the continents drifted apart.
What is a seamount?
An underwater volcano that forms wherever magma is erupting through the oceanic crust.
What is the Inner Core made of?
The Inner Core is made of solid and hot metal.
What Causes Earthquakes?
Tectonic plates moving against each other with so much pressure it causes an earthquake.
What are Sediments?
Sediments are rock, sand, or dirt that has been carried to a place by water, wind, or another natural process.
The Tectonic Plate Theoryexplains how the Earth's crust is made up of large, moving pieces of rock called tectonic plates
What is seafloor spreading?
It is when the tectonic plates move apart, and magma comes up and erupts to create lava which makes new seafloor. The old seafloor spreads further and further apart.
What is the Mantle made of?
The mantle is made of dense and very hot rock.
What is a tsunami?
An Earthquake happens underneath the ocean which triggers a huge wave.
What is Erosion?
Any process or force that moves sediments to new locations.
What is the difference between magma and lava?
Magma is beneath the crust and lava erupts above the crust.
What is the Mid-Atlantic Ridge?
It is a long underwater mountain range.
What is the Outer Core made of?
The Outer Core is made of Liquid Metal.
What is a volcano?
an opening in the Earth's surface that allows hot magma, ash, and gases to escape
What is Weathering?
To break down to smaller pieces.
What are the three types of tectonic plate movement?
1) Move Apart
2) Collide
3) Slide Sideways
What is the subduction zone?
where two plates collide and become sandwiched on top of each other.
What are the two types of crust
Volcanoes are formed when tectonic plates crash together and create a hole
What is the Rock Cycle?
a big recycling process for rocks on Earth, where rocks change from one type to another over a very long time through processes like melting, cooling, weathering, and being squeezed together, creating three main types of rocks: igneous, sedimentary, and metamorphic