What plate boundary occurs when plates slide past each other?
transform boundary
100
What are Earth's moving parts called?
plates
200
Which layer contains molten magma?
Mantle
200
Which layer is the thickest?
Mantle
200
Is the earth's surface solid? Explain
No, the crust is made up of plates.
200
What boundary occurs when two plates push together?
convergent boundary
200
At what type of plate boundary is the San Andreas Fault formed?
Transform
300
molten rock is also known as...
magma
300
What is lava?
magma that has erupted from the earth.
300
what boundary occurs when plates move apart?
divergent
300
what is the ring of fire and where is it located?
An area with many volcanoes in the pacific ocean.
300
What forms at convergent boundaries?
Mountains, volcanoes or trenches
400
What causes the Earth's crust to move?
The heat and movement of the Molten magma in the mantle.
400
What is the inner core made of?
Mostly solid iron and nickel
400
What forms at divergent boundaries?
Ocean floor spreading (or new crust), mid ocean ridges, volcanoes, and valleys
400
When all the continents were one large continent, what was it's name and who was the scientist to discover this occurance?
Pangea and Wegner
400
How are mountains formed?
At a convergent boundary when two continental plates meet.
500
Why is the inner core solid?
Increase of heat and pressure
500
What happens as you travel from the crust to the inner core?
There is an increase in heat and pressure
500
What is subduction and where does it occur?
Subduction occurs at convergent boundaries where an oceanic plate meets a continental plate. One plate is pushed down while the other is pushed upwards.
500
Explain the two ways volcanoes are formed.
Volcanoes are formed at divergent boundaries and can also be formed at convergent boundaries when two oceanic plates meet.