Plate Boundaries
What is the boundary where two plates come together called?
Convergent
Formed by rocks melting and cooling?
Igneous
One reason scientists developed the Continental Drift theory was that South America and what other continent seemed to fit together?
Africa
The thinest layer, where we live?
Crust
What is weathering?
The breaking down of rock into smaller pieces due to factors such as wind, rain, hail.
Two plates that are moving away from each other are called?
Divergent
Scarlett tried to explain this rock process as cookie crumbs that clump together and harden, forming a new type of cookie?
Sedimentary
How do fossils help with this theory?
Same fossils of land animals found on both sides of places separated by oceans.
The thickest layer of the Earth. Just beneath the crust.
Mantle
What is erosion?
Carrying away of material from the source via wind, water, gravity etc...
When plates slide past each other they are called?
Transform
When rock is heated (but not melting fully) and twisted and pulled because of pressure you get this type?
Metamorphic
How does strata layers of rock help to understand continental drift?
Identical layers are found on both sides of the Atlantic.
This layer is liquid, mostly iron and nickel.
Outer Core
What is deposition?
When sediment pieces get deposited or laid in a place to build up over time.
When one plate is denser than another and it goes beneath it is called this "s" word?
Subduction
Why is is called a "rock cycle"?
Each rock can turn into each other type and it is a continual chain.
What do scientists call the super continent from when all the plates were together?
Pangea
Layer of solid iron and nickel due to immense pressure. Earthquakes helped scientists learn this.
Inner Core
What are compaction and cementation?
The processes that crate sedimentary rock. It compacts into many layers like the trash and then hardens over time forming new rock.