Earth's Layers
thinnest layer of Earth, often compared to the shell of an egg
What is the Crust?
________ are the building blocks of all rocks.
What are Minerals?
the breaking down of rock
What is Weathering?
plate boundary where two plates come together, or collide, and one plate slides under another sometimes forming mountains
What is a Convergent Boundary?
Contains minerals, organic matter, water, and air.
What is soil?
only layer that is liquid, made of iron and nickel, generates Earth's magnetic field
What is the Outer Core?
type of rock formed from MAGMA or LAVA cooling
EX: Magma cools slowly and forms Granite
What is Igneous Rock?
weathering caused by wind, water, ice, etc.
What is Mechanical/Physical Weathering?
Plate boundary where two plates move away from one another, or divide
What is a Divergent Boundary?
______ help us learn about past events.
What are Fossils?
put Earth's layers in order starting at the surface
What is Crust, Mantle, Outer Core, Inner Core?
Type of rock formed from exposure to extreme HEAT and PRESSURE
EX: Shale CHANGES to Slate
What is Metamorphic Rock?
weathering cause by acid rain, oxidation, etc.
What is Chemical Weathering?
landform created at a Divergent Boundary
Ex. Mariana _____________
What is a Trench?
the preserved remains of animals, plants, and other organisms from the past
What is a Fossil?
Solid layer, made of iron and nickel
What is the Inner Core?
Type of rock formed from the compaction and cementation of sediments, often contains fossils/organic materials
EX: Limestone
What is Sedimentary Rock?
sediments bring dropped off or placed somewhere
What is Deposition?
Plate boundary where two plates slide past one another
What is a Transform Boundary?
A layer of soil; there are 5 main ones: O, A, B, C, R
What is Horizon O, A, B, C, R?
Thickest layer, has convection currents because it flows, the Lithosphere is located in the upper portion of this layer
What is the Mantle?
Minerals can break in 2 different ways.
What is cleavage and fracture?
sediments being moved from one location to another by wind, water, etc.
What is Erosion?
event that happens at a TRANSFORM boundary
What is an Earthquake?
the only type of rock fossils are found in
What is Sedimentary Rock?