Level 1
Huge mudflows?
Lahars
When a volcano is inactive it is called what?
Dormant
Bonus: What mountains in WA are dormant right now?
What forms molten rock?
lava
The Great Floods are also known as what?
Bretz Floods
What is Coal?
A fossil fuel used to generate energy/power
What is Washington's most threatening volcano?
Mt. Rainier
What is Washington's official fossil?
Columbian Mammoth
The volcanoes in Indonesia, Japan, Alaska, the Philippines, and the west coast of North and South America are part of what?
The Ring of Fire
Tectonic forces cause the earth to do what?
Fold and Crack
What is another name for the swelling of rivers?
Deluge
What features does the Grand Coulee have?
dry streambeds, prehistoric waterfall, and cataracts
What is the name for huge boulders that were carried long distances by glaciers?
Erratics
A dry streambed is called?
A Coulee
This mountain range was once offshore islands
Olympic Mountains
What are the oldest mountains in the west?
The Rocky Mountains
What is loess?
A mixture of volcanic ash and dust
What region was created by lava flows from fissures?
Columbia Plateau
What causes the Atlantic Ocean to widen 1-3 inches a year?
Continental Drift
Fossils found in the North Cascades are similar to those found where?
Asia (Southeastern Asia)
Washington's mountain ranges were primarily created by what?
Tectonic Forces and Volcanic Activity