Large amounts of loose rock and soil moving rapidly is called a _______________.
Landslide
100
A river of mud and rock moving rapidly is a ________________.
Mudslide
100
Movement in Earth's crust caused by a sudden shift of Earth's plates is an ______________.
Earthquake
100
A mountain that builds up around an opening in Earth's crust is a _________________.
Volcano
100
A giant ocean waved caused by an earthquake on the ocean floor is a _______________.
tsunami
200
Where do landslides occur?
In all areas
200
When the sides of a river or stream overflow there is a ______________.
flood
200
Many strong earthquakes are caused by ______________ sliding past each other.
plates
200
Which type of volcano has sides that are wide and flat and formed by layers of lava built up over time?
Shield volcanoes
200
Earth's outermost layer is the ____________.
crust
300
What is gravity?
A pulling force on all objects.
300
Mudslides are mostly due to fast flowing water and ______________.
gravity
300
_______________ in Earth's crustal plates can cause an earthquake.
a. small vibrations
b. slow movements
c. minor shaking
d. sudden movements
d. sudden movements
300
What type of volcano is made of layers of lava and ash and formed of both quied and explosive eruptions?
Composite Volcanoes
300
A place where magma partially melts through Earth's crust is called a _____ _______.
hot spot.
400
What are two factors that can cause landslides?
1. heavy rain and....
2.
loose rock
400
True or False
All of the following examples are types of mass movement:
landslide, mudslide, volcano, earthquake, wind
False. Wind is not a type of mass movement.
400
Mountains, volcanoes, and earthquakes are all formed as a result of what?
Plates moving on the earth's surface.
400
Can ashes and gases losing pressure in the magma cause rapid changes on land?
Why?
No. If pressure is lessened, there will not be gasses exploding or lava flowing.
400
A cup-like shape formed around the vent of a volcano is called a ___________.
vent.
500
If there is sloped land and eroded soil, a ______________ may occur.
landslide
500
True or False
The surface of the earth can be changed by all of the following:
a. Volcanic Eruptions
b. Glaciers pushing rock and soil
c. Rivers depositing sediment
d. All of the above
All of the above
500
Plates moving on Earth's surface form three things. What are they?
mountains, volcanoes, and earthquakes.
500
True or False:
Volcanic eruptions form new islands and change the surface of the earth.
True
500
Soil moving slowly downhill along faults is an example of ______________.