rockirdd

Question 1

what are the 4 things that can happen to a rock

Answer 1

• It can be weathered/eroded and turned into sediment
  -Heat and pressure can cause it to change into a different metamorphic rock
  -It can be melted back into magma and then re-form an igneous rock
  compaction and cementation

Question 2

what is rock cycle

Answer 2

igneous to sediment : weathering and erosion
sediment to sedimentary: cementation and compaction
sedimentary to magma: melt

Question 3

what are the compositional layers of earth?

Answer 3

crust, (oceanic crust) core, mantle.

Question 4

what are the mechanical layers of earth

Answer 4

inner core, outer core, mesosphere, asthenosphere, lithosphere

Question 4

what is the mesosphere

Answer 4

lower mantle, solid, makes up 84% of the Earth’s volume
it is essentially the coldest layer, and is located third and in the middle, as ‘meso’ means middle.

Question 4

what is the asthenosphere

Answer 4

upper mantle, not quite liquid, but can slowly flow

Question 4

what is the difference of lithosphere and crust

Answer 4

The crust is the thin, outermost layer of the Earth that is composed differently than the mantle. The lithosphere is a thick layer that contains both the crust and the upper mantle

Question 5

what is the lithosphere

Answer 5

A lithosphere is the rigid, outermost rocky shell of a terrestrial planet or natural satellite.