Weekly blog (9/13/18) Rock cycle

http://www.cotf.edu/ete/modules/msese/earthsysflr/rock.html

Summary

The cycle is the slow, infinite cycle that all rocks go through. There are three main forms of rocks in this cycle.First, Sedimentary rock; this rock is formed by the pressing and cementing together of sediments. This rock might have fossils in it and you can easily see the grains of sand or pieces in it like limestone and sandstone. It is sometimes brittle depending on its age. You can see the layers in this rock as seen on the grand canyon and similar formations. The second form of rock is Metamorphic rock; this rock is formed by a lot more heat and pressure being put on any of the other forms of rock. This forms a smooth rock like granite or marble that might have ribbon like layers in it if it is made from some types of sedimentary rock. The last main class of rocks is Igneous rock; this rock is formed when metamorphic rock is put under a lot of heat and melted into magma. Then the magma could crystallize into intrusive igneous rock under the ground, or extrusive igneous rock. More commonly known as (lava rock) Igneous rock is usualy glasslike and might have bubbles like pumice.

http://www.gcsescience.com/rk1.htm

S&EP

 I used models to explain and predict behaviors of systems, or test a design as I used starburst to represent the rock cycle. First we represented weathering by cutting up different colored starburst into small pieces. Then we mixed them up and and lightly mashed them together to represent sedimentary rock. You could still see the original forms, but it is stuck together. The we put the sedimentary rock into a ziplock bag and applied heat and pressure from our hands until it was flat. Then we folded it and attached more heat and pressure. This created "metamorphic rock". At this point it looked ty-dye like marble and you could not see the original pieces. To make igneous rock we put the "rock" into the microwave to melt it into magma. Once it hardened it became the same color and was all crystallized (the sugar). 

XCC

There is a cycle for almost everything. This is a pattern because there are a lot of things that if they are used they will end up back where they started. There are cycles for water, carbon, rocks, phosphorus, sulfur, and plenty of other minerals. There are so many things that just go in endless cycles.