Vocabulary
Outer Layer
the layer of hard solid rock
Earth’s outer layer is made of what?
Hard, Solid Rock
What do the plates in the outer layer set on? What kind of rock is this?
The mantle. Soft, Solid Rock.
Do the plates in the outer layer move or stay still?
Plates are constantly moving.
What is a claim?
a proposed answer to a question about the natural world
Plate Boundary
the place where two plates meet
What is Earth’s outer layer divided into?
Plates
How do plates move at divergent boundaries?
they move away from each other
Can you feel the plates moving?
No, they are moving way too slow for a person to feel them moving.
What is a cross section?
a diagram that shows what the inside of something looks like
Mantle
the layer of soft, solid rock underneath Earth's plates
What are plates made of?
hard, solid rock
How do plates move at convergent boundaries?
they move towards each other
Approximately 1-2 cm every year.
What is reasoning?
connecting your evidence to your claim. The so what!
Trench
a long, deep indentation in the ocean floor formed when two plates move together
Is there a green line where two plates meet?
no
As plates move towards each other what happens?
one plate buckles, moves downwards, and gets turned back into mantle
What allows scientist to track the movement of plates?
GPS
At what type of plate boundary do you see trenches?
convergent
Mid-Ocean Ridge
an underwater mountain range formed when two plates move apart
What do scientists look for to better understand Earth?
Patterns in landforms and geologic events
What happens when plates move away from each other at the mantle?
the mantle rises up and then hardens becoming new rock on the plate
What is a transformation boundary?
one where the plates move past each other in opposite directions.
At what type of plate boundary do you see mid-ocean ridges?
divergent?