WC Ch.3 Physical Geography of the United States and Canada

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Sacagawea
a Native American that belonged to the Shosone tribe that helped Lewis and Clark on their journey. She translated for them
landforms
shapes on Earth’s surface, such as hills or mountains
glacier
thick sheet of ice that moves slowly across land.
erosion
the wearing away of soil and rock particles by waves, wind, running water, or glaciers
river system
a river and all the tributaries that flow into it
weather
the condition of Earth’s atmosphere at a particular time and place
precipitation
moisture that falls to Earth, such as rain or snow.
climate
the kind of weather a place has over a long time
vegetation
all the plant life in a particular region
economy
the system by which business owners in a region use productive resources to provide goods and services that satisfy people’s wants.
Atlantic Coastal Plain
the flat stretch of land that borders the Atlantic Ocean stretching from New Jersey through the southeast United States
Appalachian Mountains
a mountain system in eastern North America
Central Lowlands
land west of Appalachians. good soil for farming
Great Plains
vast grassland between the Mississippi river and the rocky mountains
Rocky Mountains
the major mountain range in western North America
Inter-mountain Region
located between the Rockies and the cascades and Sierra Nevada: area with high plateaus with deep canyons, isolated mountain ranges and desert basins
Canadian Shield
a huge, rocky region that curves around Hudson Bay like a giant horseshoe. The Shield covers half the land area of Canada.
Polar and Tundra
a vast, level, treeless plain in the arctic regions. The ground beneath the surface of the tundras is frozen even in summer
Forest
the trees and other plants in a large densely wooded area
Rain Forest
dense forest that receives high amounts of rain each year
Grassland
land where grass or grass-like vegetation grows and is the dominant form of plant life
Desert
an arid region with little or no vegetation
Categories: Geography