Earth's Layers
Thinnest layer made of rocks
What is the crust?
What are divergent plate boundaries?
For an igneous rock to become a sedimentary rock, these two processes must happen
What are weathering and erosion?
A characteristic of metamorphic rocks are
What are bands (or streaks)?
The breaking down of rocks into smaller pieces, called sediments, is called
What is weathering?
Molten layer made of iron and nickel
What is the outer core?
Two plates that slide past each other are called
What are transforming plate boundaries?
Heat and pressure help create this type of rock
What is metamorphic?
A characteristic of sedimentary rocks are
What are layers?
Sediment, sand, and dirt gets washed away or moved from one location to another during this process
What is erosion?
Thickest layer
What is the mantle?
Two plates that collide with each other are called
What are convergent plate boundaries?
What are melting and cooling?
Igneous rocks are often formed near a source of this to help cool them quickly
What is water?
Sediment, sand, and dirt gets dropped off at a new location during this process
What is deposition?
Solid, hot layer of metal
What is the inner core?
Transforming boundaries sometimes get stuck, build up pressure, and suddenly release causing these
What are earthquakes?
A metamorphic rock that is broken down and eroded away becomes this type of rock
What is sedimentary?
Fossils are found in this rock type only
What is sedimentary?
Grass breaks through a sidewalk and causes a crack due to this process
What is weathering?
This layer allows for the movement of plate boundaries
What is the mantle?
Divergent boundaries separate from each other causing a crack in the earth that fills with magma and forms this
What is a new crust?
An igneous rock that undergoes melting and cooling will turn into this rock type
What is an igneous rock?
This is an example of an igneous rock that formed air bubbles after it cooled rapidly
What is pumice?
One way to prevent or slow down erosion of a river bank is
What is plant trees?