Magma
Molten material from inside the earth that has not reached the suface of the Earth
Lava
Magma that has reached the surface
Rock's texture
The size shape and pattern of the rock's grains
Igneous Rock
They type of rock that forms from the cooling of molten rock at or below the surface of the earth
Intrusive Rock
Igneous Rock that forms when the magma hardens beneath Earth's surface
Extrusive Rock
Igneous rock that forms when lava cools very dast on the surface of the earth
Sedimentary Rock
A type of rock that fomrs when particles from other rocks or the remains of plants and animals are pressed and cemented together
Weathering
The chemical and physical processes that break down rock on the Earth's surface
erosion
This happens when running waters and wind loosens and carries away little pieces of rock
Deposition
This happens when sediment, and broken down substances are deposited or laid down somewhere
Cementation
The process in which dissolved minerals crystalize and "glue" or "cements" particles of sediment together
Compaction
The process that presses sediments together
Clastic Rock
A sedmentary rock that forms when rock fragments are squeezed together
Organic Rock
A sedimentary rock that forms where the remains of plants and animals are deposited in thick layers
Chemical Rock
A sedimentary rock that forms when minerals that are dissolved in a solution crystalize out.
Metamorphic Rock
A type of rock that forms from an existing rock that has changed by heat, pressure or chemical reactions i.e.
Foliated Rock
Classification of metamorphic rock
Metamorphic Rock that have thin layers on top of each other
Non Foliated Rock (classification of metamorphic rock)
metamorphic rock where the grains are arranged randomly (eg marble)
Rock Cycle
A series of processes on the surface and inside Earth that slowly changes rocks from one type to another