Science (what I learned)

I learned about minerals and rock types and how they are extracted. I also learned about Mineral classes and how rocks are formed. First I started with the rock cycle. A rock goes through each of these steps weathering, erosion, deposition, burial, metamorphism, melting, and uplift and then it goes around again. During the rock cycle the rock is classified by which step it is on in the rock cycle. It is classified in either Igneous, Sedimentary, or Metamorphic rock.

Igneous rock- formed through cooling and solidification of magma or lava.

Sedimentary rock- formed by deposition of either the weathered remains of other rock, the results of biological activity, or precipitation from solution.

Metamorphic rock- consists of pre existing rock mass in which new minerals or texture are formed at higher temperatures and greater pressures than those present on Earths surface.

You can tell what type of mineral you you are looking at by its color, streak, luster, external crystal form, cleavage, fracture, and density.

You can extract a mineral by mining under ground, above ground mining, or placer mining.



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