Earth
Earth's outer is called what?
the crust
What kind of boundary is this?
(slide 11)
Divergent
A sudden shaking of Earth's crust is called what?
an earthquake
What do we call evidence of life from the past?
fossils
Where is there hard, solid rock? Under the continents, the oceans, or both?
BOTH!
Hard, solid rock is EVERYWHERE
What kind of boundary is this?
(slide 12)
Convergent
What is the soft, solid layer that Earth's plates move on top of?
the mantle
When 2 plates converge, what always happens to one of the plates?
subduction
What is the name of the supercontinent?
Pangea
What do we call a place where 2 plates meet?
A plate boundary
Earth's plates move approximately how much each year?
What do we this diagram, that shows what the inside of something looks like?
(slide 13)
a cross-section
What does this picture tell us?
That earthquakes and volcanos happen in the same place- along plate boundaries.
What underwater mountain range is formed when 2 plates move apart?
a mid-ocean ridge
As plates move apart, what does the mantle do?
The mantle rises between the plates, adding new rock to the edge of each plate
Where do earthquakes and volcanos occur?
Along plate boundaries
Name the 4 layers of the Earth from the outside to the innermost layer
Crust
Mantle
Outer Core
Inner Core
Convergent plates form a deep indentation called what?
a trench
What is the relationship between plate motion and earthquakes?
Plate motion CAUSES earthquakes
What kind of plate boundary is this?
(slide 15)
transform fault