weathering Flashcards
(22 cards)
weathering
the breaking down of rocks on earths surface into smaller pieces
eroisen
the process of moving sediment from one place to another
deposition
the dropping or settling of eroded materials
sediment
sand,bits of rock, fossils and other matter carried and deposited by water,wind, and ice
delta
sediment deposited over a long period of time ( new orelans )
sand dune
when the wind deposits a lot of sand in one area
land form
a natural land shape or feature
cause of weathering
gravity
cause of weathering
flowing water ( rain,floods, waves )
cause of weathering
tree roots
cause of weathering
chemicals in rain ( pollution )
cause of weathering
sand blowing
cause of weathering
animals digging
cause of weathering
ice wedging
crust
the thin outer layer of earth including dry land and the ocean floor
mantle
the thick layer of earth beneath the crust
plate techtonics
the theory that earths crust is divided into plates that are always moving
core
the layer of earth extending from earths center to the bottom of the mantle. it is mostly matallic iron and nickel
earthquakes
a shaking of earths surface that can cause land to rise and fall
epicenter
the point on earths surface directly above the focus of an earthquake
fault
a break in earths crust where rock on side moves in relation to rock on the other side
volcano
a place where hot gases, smoke, and melted rock come out of the ground earths surface.