vocab for unit 8 Flashcards
weathering
the breaking down of rocks on earth surfices into smaller pieces
erosion
the process of moving sediment from one to another
deposition
the dropping or settiling of eroded materials
sediment
sand bits of rock fossils and other matter cairred and deposted by water wind or ice
delta
when over time sediment piles up near the mouth of the river
sand dune
a mound or ridge of sand or other loose sediment formed by the wind
land forms
a natrul feature of the earths surface
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 earths center to the bottom of the mantle
platetectmics
the theory that earths crust is divided into plates that are always moving
earth quake
a shacking of earth surface that can cause land to rise and fall
epicenter
the point on earth surface directly above the becase of an earth quake
fualt
a break in earths crust where rock on one side moves in relate to rock on the other side