Show:
Vocabulary A
Vocabulary B
Multiple Choice A
Multiple Choice B
Short Answer
100
What causes the Atlantic to widen 1 to 3 inches a year?
Continental drift.
100
What mountain erupted and was equal to 21,000 atomic bombs.
Mt. St. Helens.
100
What is Washington's official fossil? a) Brontosaurus b) fern c) Columbian Mammoth d) salmon
c) Columbian Mammoth.
100
The Grand Coulee has the following geologic features" a) many dry steam beds b) the largest prehistoric dry waterfall c) cataracts d) all of the above
d) all of the above
200
What fossil fuel is sometimes used to power generators that produce electricity?
Coal.
200
What are huge mudflows that filled rivers after a volcanic explosion in 1980?
lahars.
200
The rich soil of the Palouse that is a mixture of volcanos ash and dust carried by the wind is: a) molten dust b) loess c) lahars d) decomposed dust
b) loess
200
Many fossil remains found in the North Cascades resemble those of similar age found in: a) Northern Canada b) Europe c) Southeast Asia d) Antartica
c) Southeast Asia
300
About 15,000 years ago, what swelled the Columbia River to ten times the flow of all the rivers in the word today?
A deluge.
300
What mountain in Washington is the most threatening?
Mt. Rainer.
300
What are the oldest mountains in the West? a) Cascades b) Olympic Mountains c) Okanogan Mountains d) Rocky Mountains
d) Rocky Mountains.
300
Hardened lava forms this type of rock: a) igneous rock b) sedimentary rock c) molten rock d) fossilized rock
a) igneous rock
400
What causes the earth to fold and crack?
Tectonic forces.
400
Mt. Baker, Mt. Rainier, Glacier Peak, Mt. Adams and Mt. St. Helens are all examples of _________ volcanos.
Dormant.
400
What were Washington's mountain ranges created by? a) buildup of rock and soil b) tectonic forces c) tectonic activity d) both b and c
D.) both B and C
400
Huge boulders that were carried long distances by glaciers are called: a) basalt boulders b) erratics c) fissures d) sedimentary boulders
b) erratics
400
Describe at least two ways the eruption of Mt. St. Helens affected the environment.
-The eruption filled rivers with lahars -ash and gas carried by winds covered the continent - clogged up the Columbia river -thousands of Douglas firs were distorted
500
What mountains were once offshore islands?
The Olympic Mountains.
500
The Columbia Plateau was created by repeated laval flows from what in the earth's crust?
Fissures.
500
The Ring of Fire is: a) volcanoes located in Washington b) a ring of fire after a volcanic eruption c) a ring of volcanoes found in Indonesia, the Philippines, Japan, Alaska and the west coast of North and South America d) a circus show that uses rings of fire for daring stunts
C) a ring of volcanoes found in Indonesia, the Philippines, Japan, Alaska and the west coast of North and South America
500
The Great Floods are also known as the a) Bretz Floods b) Glacial Floods c) Truman floods d) Lehar floods
a) Bretz Floods
500
Name two things from the Great Floods that are visible today.
-the shape of the Puget Sound lowlands -Erratics -aquifers -sculptured landscape of the Columbia Plateau -Grand Coulee -Dry Falls -Cataracts