Rock Cycle
This type of rock is formed by volcanic action.
What is igneous rock?
These form where plates with continental crust converge.
What are mountains or volcanoes?
These involve water rapidly eroding soil and dirt.
What are floods or mudslides?
This layer of the Earth has the greatest volume.
What is the mantle?
During this period, no rocks formed because the Earth's crust was still molten.
What is Hadean Period?
These repeating groups of atoms are found in igneous rock, and form when the rock cools.
What are crystals?
These geologic hazards form where plates "catch" while trying to move past each other.
What are earthquakes?
These involve sections of earth moving downhill quickly.
What are avalanches, landslides or mudslides?
It is the reason why the Earth's layers sort themselves out the way that they do: inner core, outer core, mantle, crust.
How does density effect Earth's layers?
This technology uses radioactive isotopes to determine the age of samples.
What is radioactive dating?
Heat, Pressure & Deformation
What processes form Metamorphic Rock?
This geologic feature forms where two plates diverge away from each other.
What are ocean ridges?
These hazards form most often along transverse plate boundaries.
What are earthquakes?
This layer has convection cells made of hot, softened rock or magma.
What is the mantle?
This is the largest division of geologic time
What is an Eon?
Weathering, Erosion, Deposition, Compaction & Cementation.
What processes form Sedimentary Rock?
This theory was made by Alfred Wegener, and was replaced by the theory of plate tectonics.
What is the theory of continental drift?
This is how Mount St. Helen's, Mount Rainier and other volcanoes in Washington and Oregon erupt.
What is explosively?
This property of matter controls which things sink & which float.
What is density?
This law states that the oldest rock is at the bottom.
What is the Law of Superposition?
This type of rock often has shiny, deformed layers, and is formed by heat & pressure, but not melting.
What is metamorphic rock.
This is why fossils of extinct animals can be found in separate continents, but not on the ocean floor between them.
What is plate tectonics? Or sea floor spreading?
Knowing this about volcanoes might effect where you build a house.
What is the eruption type?
This layer is the hottest, and the deepest.
What is the inner core?
These remains being found in the same rock layer show that organisms lived at the same time.
What are fossils?