Random 1
Name one piece of evidence for plate tectonics
Mid oceanic ridge
What are the 3 types of plate boundaries?
convergent, divergent, transform
What is the crust made up of?
Rock
Where are the compositional layers of the earth?
Crust, mantle, outer core, inner core
What does the grinding movement of two plates cause?
Earthquakes
What are the two types of crust?
Oceanic and Continental
What is a transform boundary?
A boundary where two plates slide past each other.
The lithosphere is made up of these interlocking pieces of the Earth's crust
Tectonic Plates
What's Mr Recchia's dog's name?
Malkin
What is the difference between s waves and p waves?
P- faster, pressure waves, refract in liquid
S- slower, secondary, cannot pass through liquid
What type of rock is formed from extreme heat and pressure?
metamorphic
What is subduction?
When one tectonic plate moves under another and sinks into the mantle.
What do S waves tell us about the earth and why?
The center of the earth is a liquid (outer core), the s-waves do not pass straight through the earth
Plate Tectonic Movements are generated by the movement of what?
Convection currents in the mantle
Name one piece of evidence for continental drift
Fossil Evidence
Climate change evidence
puzzle piece continents
Rock formations are the same
At what type of boundary (s) do volcanoes form?
Convergent, divergent
What is the mechanical layer of the earth underneath the lithosphere that allows plates to move?
asthenosphere
T/F plate tectonics move meters every year
False
What is the plate tectonic theory?
a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.
Who first suggested the theory of continental drift?
Alfred Wegener
What is formed when two continental plates converge?
Mountains
Which layers of the earth make up the lithosphere?
Crust and part of the upper mantle
What causes plates to move?
Describe what happens in a convection current to move the plates?
Rock heats up in the mantle, hot rock rises, then as it cools, it moves sideways pushing the plates and drops back down into the mantle to heat up again.