Show:
Landforms
Earthquakes
Volcanoes and Uplift
Erosion
Other
100
Weathering made it possible for it to collapse.
How can an arch in Arches National Park be dangerous, and why?
100
A crack in Earth's crust that allows the crust to slip.
What is a fault?
100
Parr of Earth's surface that rises above the surrounding land by great forces of heat and pressure deep within Earth.
What is uplift?
100
water
What is the main agent of erosion?
100
MYA because it is such a long amount of time.
How is geological time measured? Why?
200
Over 5,000 years.
How long did it take to form the Grand Canyon?
200
A sudden shift of Earth's crust along a fault.
What causes an earthquake?
200
an opening in Earth's crust that allows hot, melted rock, ash, and gases to erupt outward.
What is a volcano?
200
It takes thousands of years.
How long does it take for erosion to change our landforms.
200
They change because the water erodes the banks.
Why do rivers change?
300
They create mountains and valleys.
How do volcanoes, earthquakes and uplift affect the Earth's surface?
300
Sections of Earth's crust pull apart.
What is a tension fault?
300
magma chamber, lava, and crater
What are three parts of a volcano?
300
Makes it smaller.
What will erosion do to a mountain?
300
It measures earthquakes and volcanoes.
What does a seismograph help predict?
400
Erosion and uplift formed this.
How was the Grand Canyon formed?
400
Two sections carrying continents fun into each other.
What is a compression fault?
400
Heat and pressure
What is causes a volcano to erupt?
400
Water Erosion
What type of erosion is this...Water carries rock out of the valley and digs deeper into the valley floor.
400
It takes thousands of years for it to carve a valley.
How long does it take a glacier to carve a valley.
500
Ice freezes in the rocks at night, cracking them.
Why do rocks in the mountains fall on the road in the spring.
500
Two sections sliding sideways past each other.
What is a shearing fault?
500
Mt. Saint Hellen
What is the most recent erupting volcano in the USA?
500
Blows soil into the rivers, rounds and polishes the remaining rock.
What is wind erosion?
500
A landslide, rockfall, or flood happen quickly. Erosional changes that occur slowly are valley, canyon and arch formation.
Describe an erosional change that happens quickly, and one that happens slowly.