Earth's Crust
The block of rock that lies above
Hanging Wall
Seismic waves that compress and expand the ground like an accordion. These are the first waves to arrive and are also called Primary waves.
P Waves
DAILY DOUBLE!!!
Which classmate has a birthday next week?
Erridani
Is lava hot or cold?
Hot
The force that opposes the motion of one surface as it moves across another surface.
Friction
The block of rock that lies below
Footwall
Seismic waves that vibrate from side to side as well as up and down. They are also called Secondary waves.
S Waves
A long tube in the ground that connects the magma chamber to the earth's surface.
Pipe
A sleeping volcano that may awaken in the future is called
Dormant
DAILY DOUBLE!!!!
When is our first test with Ms. B?
Tomorrow, Friday
A fold in rock that bends upward into an arch
Anticline
These waves move more slowly that P waves and S waves, but they can produce severe ground movement.
Surface Waves
Molten rock and gas leave the volcano through this opening
Vent
The area covered by lava as it pours out of a vent
Lava Flow
One major volcanic belt formed by the many volcanoes that rim the Pacific ocean.
Ring of Fire
A fold in rock that bends downward to form a valley.
Syncline
DAILY DOUBLE!!!!!!
Who is our classroom guest today?
Mrs. Turner
A bowl-shaped area that may form at the top of a volcano around the central vent.
Crater
A dead volcano that is unlikely to erupt again is called
Extinct
DAILY DOUBLE!!!!
What is Ms. B's favorite color?
Purple
A large area of flat land elevated high above sea level
Plateau
The zigzag pattern of lines that are the record of an earthquakes seismic waves produced by the seismograph.
Seismogram
Beneath a volcano where magma collects in a pocket.
Magma Chamber
When an explosive eruption hurls out a mixture of hot gases, ash, cinders, and bombs.
Pyroclastic Flow
Who is Mrs. Turner's sister who has subbed for us before?
Mrs. Barnes