Rocks
Cementation: when layers get together

Sedimentary Rock : rock formed by differents types of sediments

 

Rock Types

Igneous Intrusive: formed inside volcano, small crystal

Rock Cycle

The rock cycle is a process in which three type of rocks change one to another. By different process. 
The magma melted inside the volcano than lava cools off. Then formed a solid rock called Igneous rock. Weathering moves by water, ice, and sand form a sediment rock. They burial together and compacted in three layers. Than cemented and formed a Sedimentary rock. They get hitted by heat and pressure.That change them into a Metamorphic Rock. Than melted back into the magma.


Rocks

Metamorphic rock: rock formed by heat and pressure.

Magma: middle of earth

 

 

Lava: liquid coming out the volcano

Solidification: when magma turns into a solid piece

 

Igneous Rock: rock formed when lava cools off

 

Weathering: broking pieces of rock

 

Erosion: move to another place by water and wind

 

Sediment: rock formed by erosion



 







Compaction: layers top bottom middle of sediments

Crystals and minerals
Streak: powder left by the minerals

Hardness: how hard and soft is the mineral

Cleavage: when mineral is cut even

 

Fracture: when mineral is cut uneven

 

 

Other properties such as: magnetic, smooth, rough, dark, sparkle, shiny, opaque, clear, light, heavy.

 

 

 

Crystals and minerals
Luster:

Metallic: look like a mineral

Non-metallic: doesn't look like a mineral

 

Color: what the mineral look like

 

Potassium feldspar
Luster: non-metallic
Color: white to pink
Hardness: 6
Cleavage

 Graphite
Luster: metallic
Color: silver to gray
uses for pencil lead and lubricants

Fracture
 Hardness:1-2

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