Show:
Weathering
Erosion
Landslides/Avalanches
Earthquakes
Volcanoes
100
True or False. Weathering is a process that happens over a very short period of time.
False.
100
What is the process that transports weathered rock to a new place?
Erosion.
100
True or False? Landslides and avalanches can change the surface of the Earth quickly.
True.
100
Which layer of the Earth do Earth's plates float on top of?
The mantle.
100
True or false? A volcano that is likely to erupt is called a dormant volcano.
False.
200
When water gets into a crack of a rock, turns into ice, and begins to split the rock, what type of weathering is occurring?
Physical Weathering
200
True or False? Fire can cause erosion.
False.
200
What force is pulling the rock/soil downward during a landslide or avalanche?
Gravity.
200
What is a fault line?
A crack or separation in Earth's crust caused by the movement of plates.
200
What is the difference between magma and lava?
Magma is below the surface of the Earth, lava is on top of the surface.
300
How can water create chemical weathering?
Acid rain.
300
Name three ways erosion can happen.
Wind, water, ice (glaciers), gravity
300
How are landslides and avalanches different?
Landslides usually contain rock and soil, avalanches usually contain mostly snow.
300
How do earthquakes begin?
The plates on Earth's surface begin to shift quickly.
300
Explain how a volcano is formed.
Magma from finds a weak spot on Earth's surface and pushes the land upward.
400
How can plants create both physical and chemical weathering?
Physical- plant roots grow into rock, and cause it to crack. Chemical- plants release chemicals onto the rock as they grow.
400
A stream has been widened over the past 50 years. Explain how this erosion is happening.
The stream is carrying tiny rock/soil bits with it as it moves through. The rock/soil move from their original location, downstream.
400
What are two things that can trigger an avalanche?
Earthquake, loud noises, explosions.
400
What are three dangers an earthquake can create?
Destroying buildings, tsunamis, floods, destroying roadways...
400
Magma is held in which part of the interior of a volcano?
Magma chamber.
500
Was the Grand Canyon physically or chemically weathered?
Physically weathered.
500
How is erosion different than weathering?
Weathering is the breaking down of rocks, erosion is when those broken pieces are carried somewhere else.
500
What are three dangers of a landslide?
Destroying homes, ruining crops, destroying roadways.
500
What is the name of the major fault line in California that caused the San Francisco earthquake?
The San Andreas Fault.
500
Krakotoa is which kind of volcano?
Active, Shield.