Rock the World
The original rock material, once cooled, that creates new crust.
What is igneous rock
n the rock cycle, _______ rocks are formed from the cooling and solidification of molten magma.
What is igneous rock?
Areas between tectonic plates
What are plate boundaries
This theory, proposed by Harry Hess, suggests that new oceanic crust is formed at mid-ocean ridges and then moves away from the ridge over time.
What is seafloor spreading
The point within the Earth where an earthquake originates
What is the focus (or hypocenter)?
A never ending cycle of recycling.
_______ rocks are formed from the accumulation and compaction of sediment.
What is sedimentary rock?
Rocks are formed from the crystallization of minerals from solutions.
What is sedimentary rock
When two tectonic plates move away from each other, resulting in the formation of new crust.
What are divergent boundaries
The San Andreas Fault in California is an example of this type of plate boundary, where two tectonic plates slide past each other horizontally
What is a transform plate boundary
The Ring of Fire, a region around the edges of the Pacific Ocean, is known for its high concentration of this geological activity.
What are earthquakes and volcanoes?
An aggregate(combo) of minerals
What is a rock?
The process by which rocks are broken down into smaller pieces is called___
What is weathering?
German meteorologist and geophysicist is credited with proposing the theory of continental drift
Who is Alfred Wegener
Earth's lithosphere is divided into these large, rigid pieces.
What are tectonic plates
This layer of the Earth is composed of solid rock and is divided into the crust and the uppermost part of the mantle
What is the lithosphere
This type of seismic wave travels through the Earth's interior and is responsible for most of the damage during an earthquake.
What are surface waves?
A solid occurring in nature with an ordered atomic structure
When sediment is compacted and cemented together, it forms _______ rock.
What is sedimentary rock?
Laying down by wind, water, or ice movement
What is deposition
This process occurs when one tectonic plate is forced beneath another into the Earth's mantle
What is subduction
The movement of tectonic plates is primarily driven by this process occurring in the Earth's mantle.
What are convection currents
Volcanoes that are characterized by explosive eruptions and steep-sided cones are often referred to as this type.
What are stratovolcanoes (or composite volcanoes)?
The arrangement of the parts - electrons, protons, & neutrons
What is atomic structure?
The process of changing one type of rock into another through heat and pressure
What is metamorphism
Material placed after weathering and erosion.
The Himalayan mountain range is an example of mountains formed by this type of plate boundary.
What is a convergent boundary
Rocks are formed from the alteration of existing rocks due to heat and pressure.
What are metamorphic rocks
This volcanic hazard is a fast-moving mixture of hot gases, ash, and rocks that flows down the sides of a volcano.
What is a pyroclastic flow?