12 terms

Hopkins Ch 7

Inner Core
The inner most layer of the Earth's interior. This part is dense and composed mostly of solid iron
outer core
lies directly above the inner core and is thought to be composed mostly of molten metal
The layer above the outer core. This is the largest layer of the Earth's interior. It is similar to putty
Earth's outer most layer and is very thin
The rigid upper part of the Earth's mantle and crust. It is broken into 30 plates that move around
Large fractures (cracks) in rocks along which movement occurs.
When one plate sinks another plate and sinks into the mantle.
Fault-block mountain
Mountains that form from pulling forces and are made of huge tilted blocks of rock
Folded mountain
Mountains formed by the folding o f rocks layers caused by compressive forces
upwarped mountain
Mountain that is formed when forces inside the Earth push up the crust
volcanic mountain
A mountain that is formed over time when layer upon layer of lava builds up
A principle that states that the Earth's crust and lithosphere float on top of the mantle.