In theory....
idea that the continents were once joined together as a single large continent and then slowly moved great distances apart
continental drift
Define subduction
when one plate is being pulled under another
Convection
the transfer of thermal energy by the movement of matter of different temperatures
Rock cycle
how one type of rock becomes another
Define Renewable
can be replaced as quickly as they are used by human populations
theory that the lithospheric plates are in constant motion
plate tectonics
Thermal energy
the internal energy of a substance due to the movement of particles within the substance
What two things are needed for the plates to move?
Gravity and convection
Sedimentary rock
formed from pressure, pressing sediment together
Nonrenewable resources
those that cannot be replaced faster than they are used up by human populations
define geological time
billions, millions, thousands of years
The "coolest" time of the day.
Science
What kind of plate boundary is this? Is there subduction and where? Does a trench form? Are there earthquakes, volcanoes and/or mountains forming? Is new plate created, destroyed or neither? T
Transform. No subduction. No trench. Just earthquakes. Neither.
igneous
formed when lava or magma cools
Best. Teacher. Ever.
Mr. Walsh
Who first came up with continental drift?
Alfred Wagener
Volcanoes typically form along what two boundary types?
Convergent and divergent
What type of plate is this? Is there subduction? Is there a trench? Are there volcanoes, earthquakes and/or mountains forming. Is new plate created or destroyed or neither? D
Divergent. No subduction. No trench. All 3. New plate created.
metamorphic rock
rock that has changed due to extreme heat and/or pressure
mid-ocean ridges
Large underwater volcanic mountain chains that form along divergent plate boundaries
What exactly did Wegener find to come up with continental drift. (2)
The same fossils and rocks on different continents.
What is the difference between how igneous and metamorphic rock is formed?
Metamorphic rock forms under pressure while igneous just cools.
What type of plate boundary is this? Is there subduction and where? Are there earthquakes, volcanoes and/or mountains forming? Does a trench form? Is new plate created, destroyed or neither? C
Convergent. Subduction along boundary. All 3. Yes trench. Plate destroyed.
Describe how a rock could move through the rock cycle. (how it can become any type of rock)
Where would pressure and heat mostly likely be intense enough to create metamorphic rock?
at subduction