Chapter 6 Geography Flashcards
Tectonic
To do with the structure of the earths crust
Region
An area with similar characteristics
Fold mountains
The mountains created by breaks in the earths crust
Erode
To wear down the surface of the earth
Glaciation
Land being covered with thick moving ice
Vegetation
Plants grow naturally in an area
Topography
The shape of the land
Climate
The prevailing condition of temperature and precipitation.
What are the 3 layers of the earth
The mantle, crust and core.
What is the earths crust?
A thin layer, about 5km long. It is broken into large pieces called plates.
What is the mantle.
It is made up of molten rock called magma.
What is the core?
The core is a hot, dense mass that is a solid. The intense heat is responsible for melting the rock in the mantle.
What is magma?
It is a thick material that slowly swirls liked boiling water. The magma causes the plates to move.
How does a volcano occur?
It occurs when the earths crust breaks and mooted rock from the mantle pushes up.
What are volcanic mountains?
After an eruption another layer of moulted rock reaches the earths surface. Where it cools and hardens.
What are the Appalachians?
The east coast of North America.
What rovince are the Appalachians in?
Newfound land.
What are the size if the Appalachian mountains?
Low. They have been eroded because they have been around for 300 000 000.
Sedimentary?
The type of rock formed by erosion of other rocks, other rocks after this loose material ax hardened.