Earth's Layers
Plate Tectonics
Plate Tectonics
This is Earth's Deepest layer. It is made of very hot metal. The metal may be as hot as the sun's surface.
What is the Inner Core
This is the most abundant class of rocks on the Earth.They form when magma cools and solidifies
What are Igneous Rocks
This is the place where one tectonic plate is sliding beneath another tectonic plate
What is subduction zone
This process breaks down rock into smaller pieces
What is weathering
This is a fracture, or crack, in Earth's crust
What a fault
This layer surrounds the Outer core. It is Earth's thickest layer and consists of very hot, very dense rock.
What is the Mantle
Rocks are naturally occuring materials made of solid, nonliving substances called what?
What is minerals
This is a type of volcano th at has erupted in the past 10,000 years and is likely to erupt again
What is an active volcano
What are the two types of weathering that can occur?
What is physical and chemical
Where do most faults occur?
What is along the boundaries of tectonic plates
These types of waves can travel very long distances. They can travel through Earth's crust and deep into its interior.
What is seismic waves
This is a type of rock that is formed when laval is cooled quickly once it is on Earth's surface.
What is Obsidian
Most of the world's volcanoes form along the boundaries of tectonic plates. This chain of volcanoes lie around the edges of the Pacific Plate.
What is the ring of fire
This type of rain is trong enough to dissolve some minerals in rocks
What is acid rain
This is the point on Earth's surface direcly above an earthquake's focus.
What is the epicenter
Scientists formed a new theory about how Earth's surface changes.
The theory of plate tectonics
This type of rock forms when either type of rocks are exposed to extreme heat and pressure
What is metamorphic rock.
This is a very hot region deep within the mantle. A huge magma chamber forms beneath the earth's crust.
What is a hotspot
What is the process or force called that moves sediments to new locations?
What is erosion
Larger earthquakes are often followed by what?
What is an aftershock
What are the 3 different ways that tectonic plates move?
They collide, move apart, and slide past each other.
Rocks are created, destroyed, and recreated in a continuous cycle. What is the name of this cycle?
This is the park where Old Faithful geyser is located
What is Yellowstone National Park
As wind slows down, sediments fall back to earth and they are deposited on land or water. Over time, these layers build up and may be transformed into what type of rock?
What is sedimentary rock
Earthquakes that occur in the crust forming the ocean bottom can cause the seafloor to shift. This shift can cause seawater, from the ocean bottom to surface, tu suddenly move. The result is a gigantic wave called what?
What is a tsunami