Most of it you got right. Have you ever heard of something called the rock cycle? If you have, good. If you haven't, here is a link to an excellent diagram: http://www.emporia.edu/earthsci/student/henderson1/rock_cycle.gif
Anyway, if you look at the diagram, you can see how igneous rock can transform into sediment, then sedimentary rock, or bypass sedimentary rock altogether and go to metamorphic rock.
Sedimentary rock can turn into metamorphic rock with heat and pressure. However, to turn into igneous rock from sedimentary rock, it will have to melt down into magma/lava before becoming igneous rock once again.
Metamorphic rock is formed by heat and pressure making changes to igneous and sedimentary rock.
Anthracite is a metamorphic rock. Anthracite is formed when an organic sedimentary rock - coal - is compressed and heated in the ground.
Rocks are classified into three groups based on how they are formed. Igneous rock is formed when magma cools and crystallizes. Sedimentary rock is formed when the products of weathering and erosion are compacted and cemented to form new rock. Metamorphic rock is formed when existing rock is changed by heat, pressure or chemical change into a new kind of rock.
metamorphic - formed when igneous or sedimentary rocks are put under extreme heat and/or pressure. igneous - volcanic rock (comes from a volcano) sedimentary - particles of rock/sand/shells/clay etc. 'gathered' to make a rock.
Any rock can become a metamorphic rock. To become a metamorphic rock the rock must undergo heat and/or pressure, but not so much that the rock melts. Should the rock melt it would become an igneous rock.
metamorphic
there are 4 bill bob and jerry and the one in abi's head she likes to call a brain Igneous, Sedimentary, and Metamorphic.
There are three major types of rock: igneous (formed from the cooling and solidification of magma or lava) sedimentary (laid down as sediments) and metamorphic (changed by heat and/or pressure)
It is a metamorphic rock formed from a progenitor sedimentary rock called a "conglomerate".
composition, how it is formed
yes
The three groups are igneous, sedimentary, and metamorphic. igneous forms when magma or lava cools down. sedimentary forms when sediments (clay, sand, silt etc) gets compressed. and metamorphic forms when an igneous or sedimentary goes under very high temperatures and pressure
Igneous- Formed from hot molten magmaSedimentary- formed from sediments piling up creating layersMetamorphic- Formed when intense heat AND pressure are applied to an igneous or sedimentary rock.
Metamorphic rock is formed by heat and pressure making changes to igneous and sedimentary rock.
Anthracite is a metamorphic rock. Anthracite is formed when an organic sedimentary rock - coal - is compressed and heated in the ground.
igneous metamorphic and sedimentary
Obsidian is an extrusive igneous rock, formed from rapidly cooling lava.