Plate Movement
Plate Tectonics
Boundaries
Density
Grab Bag
100
Which layer has tectonic plates?
The crust.
100
The scientist responsible for introducing Continental Drift Theory.
Alfred Wegener
100
The point at which tectonic plates collide into each other
convergent boundary
100
This is how scientists determined that the Earth was made of 4 layers that had different densities.
Scientists measured the movement of seismic waves.
100
Earthquakes cause tectonic plates to move. True or false?
FALSE!!!!
200
Which layer does the crust floats on that is made of a thick layer of magma which allows for plate movement?
Mantle.
200
The super continent that was once one land mass and separated into the continents we have today.
Pangaea
200
The point at which tectonic plates separate from each other
divergent boundary
200
What is the density of water?
1.0 g/mL
200
Where does the energy come from that powers weathering and erosion processes like rain, wind, snow, etc?
The sun
300
Where is the heat source that allows for the magma in the mantel to heat and move the plates?
The core.
300
The crust may also be known as
Lithosphere or tectonic plate
300
Which plate boundary is responsible for most of the earthquakes?
Transform Boundary
300
Which has a greater density, an oceanic plate or a continental plate?
oceanic plate
300
What name do scientists have picked out for the next super continent?
Amasia
400
What is it called when hot magma rises and cool magma sinks in a cyclical manner?
convection
400
Three kinds of evidence used by Scientist to support Pangaea existed.
plant & animal fossils
observe that continents fit like puzzle
earthquakes & volcanoes
mountain building
Hawaiian Islands
400
Name the two place (or 2 types of crusts) tectonic plates meet to make mountains.
oceanic meets continental
continental meets continental
400
What is the density of this rock if it has a mass of 30 grams?
30/10=3g/mL
400
Process that continually adds new sea floor
Sea-floor spreading.
500
What plate movement causes mid-ocean ridges?
Divergent Boundary
500
What was the theory that was the missing piece of the puzzle to support continental drift (separation of continents)?
Plate tectonics - magma convection moving the plates
500
Name and describe the three different types of boundaries
divergent - pull apart
convergent - push together
transform - slide past
500
What is the density of a rectangular prism that measures 1cm x 2 cm x 3 cm and has a mass of 12g?
2 g/cm3
500
The place/feature where molten material rises from the mantle and erupts, spreads out, and pushes to the sides
Mid-ocean ridge