Geography Autumn Flashcards
Seismometer
An instrument that is used to measure the size of earthquakes
Richter scale
A scale that rates an earthquake’s magnitude based on the size of its seismic waves.
Destructive Plate Boundary
Plates that go under one another
Conservative Plate Boundary
Where two tectonic plates slide past each other
Constructive Plate Boundary
Plates that move away from each other
Continental Drift
The hypothesis that all contents were joined together once
An example to support the theory of continental drift
The Mesosaurus or the shape of Africa and South America
Mantle
The layer of hot, solid material between Earth’s crust and core.
Convection cells
When the mantle heats up the Convection cells rotate to move the earths crust
Crust
Earth’s outermost layer
Outer core
A layer of molten iron and nickel in the earth
inner core
A sphere of solid iron and nickel at the center of Earth
Where do volcanoes and earthquakes occur?
Near plate boundaries
Shield Volcano
a wide, gently sloping volcano
composite volcano
tall, cone-shaped volcano that is violent
