Unit 8 Flashcards
weathering
the breaking down of rocks on earth surface into smaller pieces
erosion
the process of moving sediments form one place to another
deposition
the dropping or setting of eroded materials
sediment
sand, bits of rock, fosile, and other matter carried and deposited by water, wind, or ice
delta
sediment deposited over a long period of time; New Orlands
sand dune
is when the wind deposits a lot of sand in one area/ found in deserts or on a beach
landform
a matirally made land shape on feature
agents of weathering
gravity
agents of weathering
flowering water (rain,floods,waves)
agents of weathering
tree roots
agents of weathering
chemicals in rain (pollution)
agents of weathering
sand blowing
agents of weathering
animals digging
agents 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
core
the layer of earth extending from earths enter to the bottom of the mantle, it is mostly metallic iron and nickel
plate tectonic
the theory that earths crust is divided into plates that are always moving
fault
a break in earths crust where rock on one side moves in relation to rock on the other side
earthquakes
a shaking of earths surface that can cause land to size and fall
epicenter
the point on earths surface directly alone the focus of an earthquake
volcano
a place where hot gases, smoke, and melted rock come out of the ground onto earths surface
