Why plate tectonics effect the earth
What are divergent boundaries
When two plates pull apart
The count of tectonic plates
depends on the scale of analysis but there are 15 major plates
Who discovered plate tectonics (Hint the creator of the continental drift theory)
Alfred Wegener
What is a solar nebula?
A giant cloud of cosmic dust and gas.
What was the mega continent called?
Pangea.
What plate boundary occurs when two plates slide horizontally past each other
Transform boundaries
What are tectonic plates
Abnormally shaped rock formations
When was the continental drift theory founded
1912
How was the atmosphere created?
Created from volcanic activity
Name all 3 Plate Tectonic Movements.
convergent, Divergent, and Transformation.
What did the map show
The plate boundaries and earthquakes
Which sphere are plate tectonics located IN
Lithosphere
Who was the FIRST recorded person to take notice that the continents fit together and the worlds surface might be moving
Abraham Ortelius
What is a supernova?
An explosion of a star.
What landforms are created by Divergence? (extra points if you can name another example not listed on the slides)
Volcanoes.
What does transform boundaries cause
Earthquakes
Which sphere do the plate tectonics lay upon
Asthenosphere
Convections currents spreading the sea bed
How were the first oceans formed?
The earth was hot and made out of molten mass but over time it cooled and water began to accumulate, forming our first oceans
How did the Tectonic Plates come to be?
Through the breakup of Earth's former crust.
What landform is created by convergent boundaries
Mountains
What causes the tectonic plates to move at different rates
The transfer of heat between the lithosphere and the asthenosphere also known as convection
What are the three things the continental drift theory proved
The existence of a super continent, plate tectonics existed and moved the surface of the earth, and continental drift was a direct result of plate tectonic movements
What helped shape the Earth into the livable planet it is today?
Asteroids and comets
How did the Tectonic Plates Shift/Move for millions of years?
By the convection currents of the Earth's Mantle.