2 column rock notes

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Minerals & Rock Unit Notes th Grade Science Rocks •Are divided into groups based on how they were formed •Sedimentary •Metamorphic •Igneous •Are made of one or more minerals • Do not stay the same • Continually changed by processes such as Weathering, Erosion Compaction, Cementation, Melting, and Cooling • Rocks can change to and from the types The Rock Cycle EARTH MATERIALS CHANGE BACK AND FORTH AMONG THE DIFFERENT TYPES OF ROCKS We Co athe mp rin act g, ion Ero , C sio em n, D en tat epos ion itio n Igneous (Granite #11) Melting, Solidification Recrystallization Melting, Solidification Recrystallizat ion Metamor Weathering, Erosion, (Sandstone #6) Deposition, Compaction,phic Sedimentary Cementation (Gneiss #14) Processes that form Sedimenta ry Rock • Weathering: the breaking down of the Earth’s material by natural processes (Water, Wind, Ice, Chemicals, etc.) into smaller pieces or sediments • Erosion: weathered rock and soil particles are moved from place to place • Deposition: weathered sediments are laid down in a new location creating new landforms or rocks • Compaction: heavy sediments press down on Processes that form • Melting: caused by heat and pressure around the Igneous & rock to form magma Metamorphi • Solidification: magma c Rock cools and hardens • Recrystallization: while cooling, rock can develop crystals, depending on conditions Complete the following: •Turn in your Rock Cycle Directed Reading & Earthquake/Volcano Test Corrections •Get the Directed Readings from the table •Have something to write with Complete the following: •Turn in your Rock Cycle Directed Reading, Comic Strip & Earthquake/Volcano Test Corrections •Get the Igneous Rock Directed Reading from the table • DEPOSIT & COMPRESS THE SEDIMENTS One way Sedimentary Rock can be formed That ROCK changed again! • Formed from edimentary Rock sediments (rock fragments, mineral grains, animal and plant remains) that are pressed or cemented together or when sediments precipitates out of a solution • Water or wind breaks down (Weathering), moves (Erosion), and deposits sediment (Deposition) • The heavy sediments press down on the layers beneath (Compaction) Sedimentar y Rocks & Fossils • • Deposited sedimentary rocks form horizontal layers called STRATA • Process of arranging sedimentary rocks into layers is STRATIFICATION • Scientist know that Types of Sediment ary Rocks • Clastic: made of broken pieces of other rocks • Organic: remains of once living plants and animals are deposited in thick layers called fossils • Chemical: minerals dissolved in lakes, seas, or underground water • Limestone made when calcite precipitates from The Rock Cycle Igneous Metamorphic ? Sedimentary The Rock Cycle Igneous Metamorphic kinda melteds q u Sedimentary ish e d Bands (CAN) Form Metamorphic means “changed” Metamorphic Rocks • Rocks changed due to intense heat and high pressure • “Meta-” means “changed” and “morphosis” means “shape” in Greek • Igneous, Sedimentary and other Metamorphic rocks can change How m Metamorphic Rocks Change • Pressure from overlying rock layers • High heat, but not enough to melt the rock • Rocks may be flattened or bent or atoms may be exchanged to form new materials • Think of Types of Metamorphic Rock • Has visible parallel Foliated layers or bands you can see Non-Foliated • Example: Gneiss formed from rearrangement of minerals in Granite into bands • Not layered & no bands are formed • Example: Marble formed from The Rock Cycle Igneous metamorphic Sedimentary The Rock Cycle always changing… Youngest Rocks Here ! Oldest Rocks Here ! [...]... the Bedrock intrusive (crystals) On top (Exit) extrusive (no crystals) Bedrock Magma! Complete the following: •Get out your Minerals & Rocks Notes •Get the Paper from the table •Have a Textbook •Have something to write with But then the EARTH’S elements Will not leave the ROCK alone! •Ice •Wind •Water ice wind water HEY BREAK UP THE STONE DEPOSIT & COMPRESS THE SEDIMENTS One way Sedimentary Rock can... precipitates from The Rock Cycle Igneous Metamorphic ? Sedimentary The Rock Cycle Igneous Metamorphic kinda melteds q u Sedimentary ish e d Bands (CAN) Form Metamorphic means “changed” Metamorphic Rocks • Rocks changed due to intense heat and high pressure • “Meta-” means “changed” and “morphosis” means “shape” in Greek • Igneous, Sedimentary and other Metamorphic rocks can change How m Metamorphic Rocks Change... overlying rock layers • High heat, but not enough to melt the rock • Rocks may be flattened or bent or atoms may be exchanged to form new materials • Think of Types of Metamorphic Rock • Has visible parallel Foliated layers or bands you can see Non-Foliated • Example: Gneiss formed from rearrangement of minerals in Granite into bands • Not layered & no bands are formed • Example: Marble formed from The Rock. .. formed That ROCK changed again! • Formed from edimentary Rock sediments (rock fragments, mineral grains, animal and plant remains) that are pressed or cemented together or when sediments precipitates out of a solution • Water or wind breaks down (Weathering), moves (Erosion), and deposits sediment (Deposition) • The heavy sediments press down on the layers beneath (Compaction) Sedimentar y Rocks & Fossils... press down on the layers beneath (Compaction) Sedimentar y Rocks & Fossils • • Deposited sedimentary rocks form horizontal layers called STRATA • Process of arranging sedimentary rocks into layers is STRATIFICATION • Scientist know that Types of Sediment ary Rocks • Clastic: made of broken pieces of other rocks • Organic: remains of once living plants and animals are deposited in thick layers called fossils... formed from rearrangement of minerals in Granite into bands • Not layered & no bands are formed • Example: Marble formed from The Rock Cycle Igneous metamorphic Sedimentary The Rock Cycle always changing… Youngest Rocks Here ! Oldest Rocks Here !
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