Plate Tectonics
Earthquakes
Tsunamis
Volcanoes
Scientific Method
100
Molten rock that is found in the lithospheric portion of the earth's mantle and upon which continents float.
What is magma?
100
A shaking of the ground causd by the sudden movement of large blocks of rocks
What is an earthquake
100
Tsunamis are caused by _________
What is an earthquake
100
Name three types of volcanoes.
What are cone, cinder-cone, island mountain, shield?
100
A description of something you actual saw
What is "Observation"
200
The instrument that constantly records ground movements?
What is Seismometer (Seismograph)
200
The point underground where rocks first begin to move in an earthquake.
What is focus?
200
Tsunamis travel at how many mph?
What is from 311 to 622 miles per hour
200
The name of the magma chamber which supports a volcano.
What is batholith?
200
First you make observations, then you
What is "ask a question?"
300
A huge crack in the earth's crust.
What is a fault?
300
The smoke rising from a volcano is actually a mixture of what?
What is ash and gases
300
How many seismometer stations must report on an earthquake in order to accurately debermine the EQ's magnitude.
What is three
300
Lava that erupts from the sea floor builds volcanic islands called ___________ .
What are island chains.
300
A hypothesis is an
What is educated guess based on known facts and observations
400
The fastest seismic wave (It travels through solids, liquids and gases).
What is Primary "P" wave?
400
About 80% of all active volcanoes are found along what type of plate boundaries?
What are subduction zones?
400
What happens to the shoreline water just before a tsunami hits the shore?
What is the water is sucked from the shore into the wave.
400
A hot spot.
What is a stationary pool of magma.
400
What do you do after you develop your hypothesis?
What is test the hypothesis?
500
The unit of measure used to determine the amount of energy released by an earthquake.
What is magnitude.
500
Triangulation is a process that seismologists use to find the __________________ of an earthquake.
What is epicenter?
500
How strong must and earthquake be to start a tsunami?
What is at least 6.5 on the Richter scale
500
A volcano that does not erupt for some time.
What is dormant.
500
When your test results support your hypothesis, what is the next step of the scientific method?
What is form conclusions?
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