Show:
Weather
Volcanoes
Earthquake
Plate Tectonics
Misc.
100
a large area of air that shares similar temperatures and moisture content
What is an air mass?
100
any geological activity where magma rises to the earth's surface
What is volcanism?
100
a shaking of the earth as a result of tectonic movement.
What is an earthquake?
100
the term for Wegner's hypothesis, discussing how the continents move
What is continental drift?
100
the instrument that measures wind direction
What is wind vane?
200
a boundary between two types of air masses
What is a front?
200
the hot, liquid rock that lies under Earth's surface
What is magma?
200
the plate boundary where an earthquake occurs.
What is a fault line?
200
the formal theory that the earth is broken into sections called plates that move
What is plate tectonics?
200
a volcanic cone that is formed from a quiet eruption
What is a shield volcano?
300
a balloon with instruments attached, used to measure high-atmosphere weather
What is a radiosonde?
300
the hot, liquid rock that comes from inside the earth and spews onto the earth's surface.
What is lava?
300
the center of an earthquake, found within Earth
What is the focus?
300
the mechanism for continental separation
What is sea-floor spreading?
300
a powerful but short-lived storm that has winds exceeding 400 km/hr
What is a tornado?
400
a severe storm around a low pressure center, that forms in the tropics
What is a hurricane?
400
magma or lava that is rich in magnesium and other minerals
What is mafic lava?
400
a compression, body wave
What is a P wave?
400
the second layer of Earth composed of plastic like rock that flows
What is the asthenosphere?
400
the instrument scientists use to measure earthquakes
What is a seismograph?
500
a front that forms when a cold air mass overtakes a warm one and forces the warm air mass above the ground
What is an occluded front?
500
an area of volcanism within a tectonic plate
What is a hot spot?
500
a curvy, surface wave
What is a Raleigh wave?
500
the first layer of the earth including the crust and upper mantle
What is lithosphere?
500
the process that scientists use to identify an earthquake's epicenter
What is triangulation