Boundaries
What are the three types of boundaries?
Convergent, Divergent, and Transform
What is the theory of how plates move, interact and change?
Plate tectonics
What natural disasters are caused by plate tectonics?
(name 3)
Volcanic Eruptions, Earthquakes, Tsunamis
Who is Albert Wegener?
The man responsible for the theory of continental drift/plate tectonics
What is another name for Pangaea?
A Super-continent
What is divergent boundary?
Where two plates move away from each other
What is the outer layer of the Earth called?
The crust
What are volcanoes?
Openings in the earths crust which release lava, gas and ash
What did they find in the ground that helped with the Pangea theory?
Fossils
Explain the theory of plate tectonics
Plates under the earth which make up the Earth's surface and move because of intense heat from the Earth's core
What is a convergent boundary?
When two plates move towards each other
What layer of the Earth lies just outside the inner core?
The outer core
What is the hottest part of the Earth?
The core
How many continents did Pangea split into?
7
DAILY DOUBLE!! (2Xs the points)
What is it called when multiple animals and plants die in a short period of time?
Mass extinction
What is a transform boundary?
When two plates slide past each other
What causes plates to move?
Convection currents caused by heat from the Earth's core.
What do you call huge jets of heat that move within the Earth to move plates?
Convection currents
What fiery landforms can be found on the boundaries of tectonic plates?
Volcanoes
Alfred Wegener discovered what?
Plate tectonics
This boundary causes mountains, earthquakes, and volcanoes.
A convergent boundary
What are broken parts of crust that carry continents and oceans?
Tectonic Plates
What is an earthquake?
A violent shaking of the Earth's crust
What is a hot spot?
A column of extremely hot magma from the mantle
Explain Alfred Wegener's theory
He believed tectonic plates move and that is what formed continents and oceans.