IHSLAbrorMirzaveliev: Earth treasure

Rock types on earth.

They are three type of rocks. Firsts one is Igneous rock. Second is Sedimentary rock. And last one is Metamorphic rock. They all form different way and have its own types. Igneous rock forms when the lava or magma cools down. It has two types extrusive and intrusive. Extrusive rock have small crystals in a rock and it forms outside the mountain ( volcano ). Intrusive rock have big crystals and forms inside the mountain ( volcano ). Sedimentary rock forms compaction and cementation of sediment. It has three types clastic, crystalline, and bioclastic. Clastic rock is just piece of rock. Crystalline rock is rock that forms from liquid. when the animals or the plants die it get berried and turns to bioclastic rock. Metamorphic rock forms with heat and presur. It has two types non foliated and foilated. Foilated one have lines on the rock and non folated have no lines on the rock. Their is more to it. Those rock have its own hardness, luster, color, cleavage or fracture, prices , etc.

When the magma erupts from mountain, it gets cool down and turns to Igneous rock. After Igneous rock their will be winds, rains, thunders etc. The rocks will break down into pieces. Then wind will take them to new places that's called Erosion. Those rocks will get together and buried in the underground it will compact together and became Sedimentary rock. Inside the underground sedimentary rock will get presure and heat and turns to Metamorphic rock. After getting deeper and deeper Metamorphic rock will melt down and comes as lava. That's how rock cycle happens.

Vocabulary words.

Metamorphic rock - rock that formed from heat and presure.
Sedimentary rock - rock that forms from sediment that gets compact and sement.
Magma/lava - rock that melted down and became liquid.
Igneous rock - rock that forms when the lave cools down.
Solidification - the rock became solid.
Weathering - rain, wind, ice that breaks the rock into piece.
Erosion - takes sediment to other places.
Sediment - small rocks broke in to small pieces.
Compaction - when the rocks became compact.
Cementation - the rock becomes cement like hard rock.