Show:
Earthquakes
Volcanoes
Continental Drift
Plate Boundaries/ Earth's Layers
Mix
100
The area beneath Earth's surface where the earthquake was triggered
What is focus
100
A molten mixture of rock-forming substances, gases, and water from the mantle
What is magma
100
A single landmass that broke apart 200 million years ago and gave rise to today's continents
What is Pangea
100
The three general layers of the Earth
What are the crust, mantle, and core
100
The record of an earthquake's seismic waves produced by a seismograph
What is a seismogram
200
The three types of stress that can occur in the crust
What are tension, compression, and shearing
200
A major volcanic belt that rims the Pacific Ocean
What is the Ring of Fire
200
A young German scientist that hypothesized that the Earth's continents moved
Who is Alfred Wegener
200
A deep valley that forms along a divergent boundary
What is a rift valley
200
The three types of evidence that supported Hess's theory of sea floor spreading
What are molten material, magnetic stripes, and drilling sample
300
The three types of faults that can occur along plate boundaries
What are normal, reverse, and strike-slip faults
300
The two types of lava
What are Pahoehoe and aa
300
Wegener's idea that the continents slowly moved over Earth's surface
What is Continental Drift
300
The three types of plate boundaries
What are divergent, convergent, and transform boundaries
300
The movement that causes Earth's plates to move
What are convection currents
400
Can produce severe ground movements and are slower than the other two waves
What are surface waves
400
Evidence that Wegener gathered from different scientific fields(3)
What are land features, fossils, and climate
400
Earthquakes often occur along this boundary
What is an earthquake
400
The characteristic properties of a mineral that can be used to identify it
What are color, streak, luster, crystal composition, hardness, density, and fracture and cleavage
500
Tools that can measure horizontal movement
What are creep meters, laser-ranging devices, and GPS satellites
500
Two types of geothermal activity
What are geysers and hot springs
500
Wegener did not support a satisfactory explanation
Why was Wegener's hypothesis rejected
500
A formation that forms where sea-floor spreading occurs
What is a mid-ocean ridge
500
The stages of a volcano AND name the volcanoes that can have an explosive eruption and the volcanoes that can have a quiet explosion
1) What are active, dormant, and extinct 2) What are (quiet) shield and composite volcanoes and (explosive) cinder cone and composite volcanoes