vocabulary
only active at night
What is nocturnal?
What are the Rockies?
electricity is provided by this major river
What is the Columbia River?
opening in the surface of the earth through which gas, as, and lava are forced out
What is a volcano?
mountain range located in eastern California and western Nevada
What is the Sierra Nevada mountain range?
the ocean on the western border of the U.S.
What is the Pacific Ocean?
tundra
What is level frozen area in far north where the temperature is so cols even trees will not grow
mountain range that runs fromhnorthern California, through Oregon, into Washington
What is the Cascade mountain range?
location of geysers and hot springs including Old Faithful
What is Yellowstone National Park?
geyser
What is a hot underground spring that shoots steam into the air?
Mount McKinley, Alaska
What is the highest mountain peak in North America?
event (eruption) in Washington
What is Mt. Saint Helen volcano?
moist air rising up over mountains, moisture falls from clouds as rain or snow, clouds lose moisture as reach eastern side of mountain, area receives little moisture
What is Rain Shadow Effect?
three major mountain ranges in the West
What are the Rocky Mountains, the Sierra Nevada, and the Cascades?
event in ocean caused by earthquake
What is a tsunami?