Rocks

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**Minerals are:** Naturally Occurring Crystalline Solids with Definite Chemical Compositions **Rocks are __mixtures__ of minerals or other natural materials!**



1. Sedimentary Rocks are formed from particles of sand, shells, pebbles, and other fragments of material. Usually the only type that contains fossils. 2. Metamorphic Rocks are formed under the earth from an intense change of heat & pressure. These rocks have a ribbon-like appearance or crystals. 3. Igneous Rocks are formed when magma cools and hardens. No crystals form, but the rock looks shiny and glass-like; and has little holes. What is the Law of Conservation of Matter?  Explore the Link below and as you do so, __//write down 3 examples of each Rock Type//__.  **After you think you understand and remember the Rock Cycle try the:** "Complete the Cycle" and then "Test your Skills" **[|The Rock Cycle] **

Review how Igneous Rocks are formed

HOT MAGMA COOLS & HARDENS

<span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 272%; text-align: center;">2 Types:





<span style="color: #000080; display: block; font-family: Georgia,serif; font-size: 170%; text-align: center;">**Dense** <span style="display: block; font-family: Georgia,serif; font-size: 170%; text-align: center;">Dark-Colored <span style="color: #ff0000; display: block; font-family: Georgia,serif; font-size: 170%; text-align: center;">High ~ Fe / Mg <span style="color: #ff00ff; display: block; font-family: Georgia,serif; font-size: 160%; text-align: center;">Low ~ Si <span style="color: #0000ff; display: block; font-family: Arial,Helvetica,sans-serif; font-size: 160%; text-align: center;">Cools Very Fast <span style="color: #808000; display: block; font-family: Georgia,serif; font-size: 176%; text-align: center;">Forms at Surface <span style="color: #000000; display: block; font-family: 'Courier New',Courier,monospace; font-size: 144%; text-align: center;">Location Example:

<span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 170%; text-align: center;"> <span style="color: #000000; display: block; font-family: 'Comic Sans MS',cursive; font-size: 144%; text-align: center;">intrusive:granite <span style="color: #000080; display: block; font-family: Georgia,serif; font-size: 170%; text-align: center;">**Lower Density** <span style="display: block; font-family: Georgia,serif; font-size: 170%; text-align: center;">Light-Colored <span style="color: #ff0000; display: block; font-family: Georgia,serif; font-size: 170%; text-align: center;">High ~ Si <span style="color: #ff00ff; display: block; font-family: Georgia,serif; font-size: 160%; text-align: center;">Low ~ Fe / Mg <span style="color: #0000ff; display: block; font-family: Arial,Helvetica,sans-serif; font-size: 160%; text-align: center;">Cools Very Slow <span style="color: #808000; display: block; font-family: Georgia,serif; font-size: 176%; text-align: center;">Forms Deep Underground <span style="color: #0000ff; display: block; font-family: Georgia,serif; font-size: 176%; text-align: center;"> <span style="color: #000000; display: block; font-family: 'Comic Sans MS',cursive; font-size: 144%; text-align: center;">extrusive:Pumice <span style="color: #000000; display: block; font-family: 'Comic Sans MS',cursive; font-size: 144%; text-align: center;"> extrusive:Obsidian <span style="color: #000000; display: block; font-family: 'Comic Sans MS',cursive; font-size: 144%; text-align: center;"> <span style="color: #808000; display: block; font-family: Georgia,serif; font-size: 176%; text-align: center;">Forms Above Ground <span style="color: #000000; display: block; font-family: 'Courier New',Courier,monospace; font-size: 144%; text-align: center;">Magma is very Stiff-Results in Explosive Volcanic Eruptions <span style="color: #000000; display: block; font-family: 'Courier New',Courier,monospace; font-size: 144%; text-align: center;"> <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 170%; text-align: center;"> <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 170%; text-align: center;"> Mineral Compositions between Granitic and Basaltic <span style="color: #000000; display: block; font-family: Georgia,serif; font-size: 168%; text-align: center;">Review how Metamorphic Rocks are formed

<span style="color: #ffffff; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 140%; text-align: center;">Rocks Changed by Heat and Pressure <span style="display: block; font-family: 'Palatino Linotype','Book Antiqua',Palatino,serif; font-size: 272%; text-align: center;">2 Types: <span style="color: #808000; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 272%; text-align: center;">Foliated: <span style="color: #5e8d5e; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 182%; text-align: center;">parallel layers <span style="color: #808000; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 160%; text-align: center;"> <span style="color: #808000; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 160%; text-align: center;"> <span style="color: #008080; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 272%; text-align: center;">NonFoliated: <span style="color: #5e8d5e; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 182%; text-align: center;">layering does not occur <span style="color: #008080; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 272%; text-align: center;"> <span style="color: #008080; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 272%; text-align: center;"> <span style="color: #008080; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 272%; text-align: center;"> <span style="color: #008080; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 272%; text-align: center;"> what's sedimentation? <span style="color: #008080; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 136%; text-align: center;">[|See how sediments are deposited]

<span style="color: #000000; display: block; font-family: Georgia,serif; font-size: 168%; text-align: center;">Review how Sedimentary Rocks are formed

<span style="color: #ffffff; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 140%; text-align: center;">Loose materials(rocks, sand, bits of shell) are moved by wind, water, ice, gravity <span style="color: #ffffff; display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 140%; text-align: center;"> and then pressed down and cemented together <span style="display: block; font-family: Georgia,serif; font-size: 160%; text-align: center;">1. Weathering & Erosion <span style="display: block; font-family: Georgia,serif; font-size: 160%; text-align: center;"> 2. Compaction <span style="display: block; font-family: Georgia,serif; font-size: 160%; text-align: center;"> 3. Cementation

<span style="display: block; font-family: Georgia,serif; font-size: 160%; text-align: center;"> Conglomerate- cemented stone sediments to form a large rock

Sandstone- cemented grains of sand limestone- chemically formed minerals when a solution's solvent is evaporated and the solute is left rocks with fossils



<span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;">Study! <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;"> Write summary for Sect. 2, 3, & 4 describing <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;"> "Formation of the Rock Type" and "How it's Classified" due Wednesday.

<span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;"> Review with the... <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;"> [|Rock Hounds] <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;">[|Rock Stars] <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;">[|Rock Questions] <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;">[|Name That Rock] <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;">[|Rock Cycle Review] <span style="display: block; font-family: 'Arial Black',Gadget,sans-serif; font-size: 150%; text-align: center;">Don't Forget to Review the Minerals...[|Minerals in your Home]