Unit 8 science Flashcards
Weathering
The process of rocks breaking down
Erosion
The process of weathered rock moving from place to place.
Depostion
The dropping of weathered rock by wind or moving water
Sediment
Bits of rocks
delta
landform created by the long term
droppings of sediment
Landform
a natural land shape or feature
Sand Dunes
When wind deposits a lot of sand in one area.
Causes of Weathering
Gravity, Flowing water, Tree roots, Chemicals in rain, Snad blowing, Animals digging, and Ice wedging
crust
The thin outer layer of earth,including dry land and ocean floor.
mantle
The thick of earth beneath the crust
core
The layer of earth extending from the earth’s center to the bottem of the mantle.It is mostly metallic iron and nickle
plate techtonics
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 to rock on the other side
earthquake
A shaking from the earth’s that can cause land to rise and fall
epicenter
The point on earth’s surface directly above the surface of the earthquake