Which layer of Earth is found between the crust and core?
What is mantle
100
Which theory describes the continents moving apart from each other slowly?
What is continental drift
100
What is the name of the instrument that collects seismic data?
What is seismometer
100
How many types of volcanoes did we study?
What is 3
100
What is oceanic crust made of?
What is basalt
200
The continents once all fit as one supercontinent. What is the name of the supercontinent?
What is Pangaea
200
Which theory provided a mechanism for plate movement, to support Wegener's claims?
What is seafloor spreading
200
Where do most earthquakes occur?
What is plate boundaries
200
Which volcano type has the largest volcanoes?
What is sheild
200
Compared to ocean crust near deep-sea trenches, crust near ocean ridges is...?
What is younger
300
Which two continents seemed to fit together as a puzzle, giving evidence to Wegener's theory?
What is Africa and South America
300
Why did people not believe Wegener's theory at first?
What is no explanation for movement of continents
300
What is the name of where an earthquake originates underground?
What is focus
300
Where are most volcanoes located?
What is plate boundaries/Ring of Fire
300
What is created at an oceanic-oceanic divergent boundary?
What is an ocean ridge
400
In which layer of Earth does magma come from?
What is mantle
400
What causes the movement of the pieces of Earth's crust?
What is convection currents in the mantle
400
What do stress and strain have to do with earthquakes? Be specific.
What is the more stress on an object, the result is strain until the object (rock) fractures, causing an earthquake.
400
Which two properties make magma more explosive?
What is high viscosity and lots of gas bubbles
400
What created the Hawaiian islands?
What is hot spot volcanoes
500
Name the layers of Earth in order according to physical properties.
What is lithosphere, asthenosphere, mesosphere, outer core, inner core
500
Explain seafloor spreading.
What is two oceanic plates moving apart, magma reaches the ridge, fills the gap and creates new ocean floor while pushing the old ocean floor further away
500
What scale is used to determine an earthquake's intensity?
What is Modified Mercalli Intensity Scale
500
Name the three types of lava flow.
What is Pahoehoe, A'a, and Pillow
500
Name two discoveries made possible by the study of seismic waves.
What is mapping Earth's interior and locating epicenters of earthquakes