Hum. 300 History And Methods Of Science

How atomic frame 18 the Three Kinds of Rocks FormedThere atomic number 18 collar polar kinds of rocks : aqueous , metamorphous and perfervid rocks . Each of these argon organise in a different waySedimentary rocks are bits and pieces of eroded earth that are swept extraneous into the bottoms of the different bodies of water like the ocean lake and oceans . When these bits of earth cook up under the water , they form layers . The load of the layers on pilfer tend to press down the ones at the bottom and possess it more compact . In clock , these will get down solid sedimentary rocks . Examples of sedimentary rocks are sandstones limestones , shale , conglomerate and gypsum rocksMetamorphic rocks were to begin with either igneous or sedimentary rocks that have been formed into this type because of minacious pressure w hen they are pushed underneath the new(prenominal) rocks . When these rocks are forced to become so compact because of the heavy pressure above them , heat builds up and causes the deformation .

Examples of metamorphic rocks are schist and gneissGranite rocks come from volcanic debris that transform into rocks because of slow up cooling . This snappy change in temperature happens when lava suddenly flows on the ground and traps cooling pockets of magma underneath . The cold temperature cools the lava slowly and forms the granite rocks . Examples of granite rocks are scoria , pumice which are genuinely light and may float on water and obsidian . These three types of granite are with al considered to be glassReference Rock Houn! ds (1999 . The Franklin Institute . Retrieved June 5 , 2007 from httpwww .fi .edu /fellows /fellow1 /oct98 /index2 .htmlKind of Rocks PAGE 1...If you take to get a full essay, fix it on our website: OrderEssay.net

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