unit 8 earth science Flashcards
weathering
the process of breaking down rocks
erosion
The process of moving weathered rock from one place to another
deposition
The dropping of weathered rock by wind or moving water
sediment
very small pieces of rock
delta
landform created by the long term deposing of sediment
landfrom
A natural feature of the earth surface
sand dunes
Created when wind deposit sandon top of each other until a small mound starts to form
crust
The thin outer layer of earth, including dry land and the ocean floor
core
The layer of earths extending from earth’s center to the bottom of the mantle its mostly metallic iron and nickel
plate tectonics
The theory that earth’s crust is divided into plates that are always moving
fault
A break in Earth’s crust where rock on one side moves in relation
earthquake
A shaking of Earth’s surface that can cause land to rise and fall
epicenter
The point on Earth’s surface directly above the focus of an earthquake
matle
The thick layer of earth beneath th crust
volcano
A place where hot gases,smoke,and melted rock come out of the ground onto earth’s surface