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Casteel Earth

Rock Cycle, Weathering, and Erosion

TermDefinition
crust The thin and solid outermost layer of the Earth above the mantle
mantle the layer of the earth between the crust and the core
outer core molten, liquid metal is in this layer
inner core solid Iron and Nickel make up this layer
crust thinnest under oceans and thickest under mountains
mantle thickest layer of the earth
outer core source of the Earth's magnetic field is Iron from this core
inner core Hottest layer of Earth.
crust least dense and thinnest layer
mantle contains some liquid (molten) rock, but mostly solid
mantle makes up about 2/3 of the Earth's mass
weathering the process by which rock is broken down into smaller pieces
gravity this can cause rocks to fall down a hill
chemical weathering acid rain causes this
deposition the dropping of weathered rock by wind or moving water
sediment very small pieces of rock;examples include sand and silt
wind and moving water this carries sediment from place to place
erosion removal of soil and rock from the Earth's surface
Grand Canyon formed by the moving water of the Colorado River
convergent when two plates collide or travel toward each other
divergent when two plates move away from each other
transform when two plates slide past each other
convergent this type of boundary forms volcanoes and mountains
divergent this type of boundary forms ridges and rift valleys
transform this type of boundary causes earthquakes
cooled magma Igneous rock comes from _______________.
layers Sedimentary rock forms in ___________.
streaks Metamorphic rock has ____________ or bands of colors running through it.
change What does morph mean?
fire What does ignite (igneous) mean?
fossil A sedimentary rock might have a __________ in it.
metamorphic What type of rock is marble?
igneous What type of rock is granite and basalt?
pressure Metamorphic rock undergoes heat and _______________.
water What causes most erosion on earth?
wind Besides water, what is the next biggest cause of erosion on earth?
weathering What is the "breaking down" of rock called?
erosion What is the "carrying away" of rock called?
granite Which igneous rock is found under most of the continents?
basalt Which igneous rock is found under most of the oceans?
sedimentary Which rock type is formed in layers at the bottom of ocean?
sediment Any solid that sinks to the bottom of a liquid is called ______________.
limestone What rock has to be present for caves and caverns to form?
carbonic acid What dissolve limestone?
rock The words "LITHOS" come from the Greek word for ______________.
deposition The process after weathering and erosion when sediment comes to rest in a certain place
Created by: lkcasteel