Earthquakes
Volcanoes
Landslides
Vocabulary
Other
100
What is the largest fault line in California?
San Andreas Fault
100
What is an example of a volcano that has violently erupted and changed the land around it?
Mount St. Helen
100
What can trigger a landslide?
Earthquakes and volcanic eruptions
100
What is a sudden movement at the Earth's crust?
An earthquake
100
Which event causes a sudden change on Earth? a. erosion b. rain c. earthquakes d. global warming
c. Earthquakes
200
How can an earthquake affect Earth's surface?
An earthquake can move rock and produce new landforms.
200
How does a volcano change Earth's surface?
Hot ash, gases, and molten rock pour onto the surface, destroying structures and adding new rock.
200
How do landslides affect Earth's surface?
Landslides can change the shape of the land and destroy property.
200
What may happen if an earthquake happens in the ocean floor?
A tsunami
200
Which of the following is NOT a cause of landslides? a. earthquake b. tsunami c. erupting volcano d.heavy rain
b. tsunami
300
Describe the two types of movement along a fault line.
Earthquake - sudden movement Creep - slow movement
300
What are the two ways a volcano can erupt?
Quickly - hot lava, ash, gases Slowly - thick, slow-moving lava
300
Would loose rock be more likely to become a landslide on a steep slope or a gradual slope? Why?
Steep slopes - rocks can gain more speed.
300
What is a landslide?
The sudden movement of loose rock and soil down a steep slope.
300
If you wanted to construct an earthquake safety kit for your family, what would you include?
Food, water, battery-operated radio, flashlight, etc.
400
What is a way to prevent or minimize the amount of damage from an earthquake?
Build with wood and steel, since they are materials that are flexible Use steel frames to reinforce houses and buildings Know earthquake safety rules
400
How might a volcano be dangerous?
Lava is hot and fast-moving. The gases, ash, and rock can hurt people.
400
In which place is a landslide most likely to occur? a. dry, flat desert b. rainy, bare slope c. rainy, mountain forest d. sunny, grassy field
b. rainy, bare slope
400
What is a volcano?
An opening in the Earth's crust through which hot ash, gases, and molten rock escape.
400
Which rapid change can be predicted and how?
Tsunamis - a gauge can be placed on the ocean floor to send signals to a buoy
500
Do you think an earthquakes moves along an entire fault, or just part of it?
Part of it - a fault like may be hundreds of kilometers long, but an earthquake can happen along just one part of it
500
What is the difference between lava and magma?
Lava - molten rock that reaches the Earth's surface Magma - molten rock beneath the Earth's surface
500
What is one way landslides can be prevented?
Limit where people build houses and businesses and build supporting walls to change the direction of landslides.
500
What is the difference between a fault, focus, and epicenter?
Fault - where two tectonic plates meet Focus - point underground where an earthquake starts Epicenter - where an earthquake feels the strongest
500
What is the difference between mudslides and rockslides?
Mudslides - thick, heavyy mass of mud going down a hill caused by heavy rain or snow melt. Rockslide - large pieces of rock broken off during an earthquake or volcanic eruption fall down a slope.
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