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Download Color Luster Streak
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Name _____________________________________ Teacher ______________ Date ______________ Physical Properties of Minerals Using the reading from pages 94-96 in the Connect Ed app, complete the following flow chart: Color Color alone cannot be used to indentify a mineral. shine or brilliant Luster Not shiny can be earthy or dull. Hardness -Resistance of mineral to being scratched. -Scale of 1 - 10. Streak The color of a mineral in powdered form. Special Properties -Texture, How it reacts, Odor, Fluorescence, Magnetic Make flashcards for the following words from the Minerals Section: pages 94-96 Mineral – a naturally occurring, inorganic solid with a definite chemical composition and an orderly arrangement of atoms Luster – the way a mineral reflects or absorbs light Mohs’ Hardness Scale – the scale used to compare the hardness of different minerals Hardness- the resistance of a mineral to being scratched Streak – the color of a mineral in powered form Name _____________________________________ Teacher ______________ Date ______________ Rocks and Minerals Chapter 8, pages 301 – 345 and pages 94-96 Use the pages of Chapter 8 to find the definitions to these vocabulary terms. After finding the definitions, use the “Quizlet” app or the “Flashcards” app to make flash cards. Section 8.1 rock – a natural, solid mixture of minerals or grains grains – the fragments that make up a rock texture – the grain size and the way grains fit together in a rock magma – molten or liquid rock underground Lava – molten rock that erupts on Earth’s surface Sediment – rock material that forms where rocks are broken down into smaller pieces or dissolved in water as rocks erode rock cycle – the series of processes that change one type of rock into another type of rock Section 8.2 igneous rock – rock formed from magma or lava that has been cooled and hardened extrusive rock (igneous rock formed when volcanic material erupts, cools, and crystallizes on Earth’s surface – examples are obsidian, basalt, and pumice) volcanic glass – rock that forms when lava cools too quickly to for crystals. intrusive rock (igneous rock formed as magma cools underground – an example is granite) Section 8.3 sedimentary rock – rock formed from deposition, compaction and cementation of sediments Compaction – the weight from the layers of sediment forces out fluids and decreases the space between grains Cementation – when minerals dissolved in water crystallize between sediment grains clastic rock - Sedimentary rocks that are made up of broken pieces of minerals and rock fragments – an example is conglomerate chemical rock - Sedimentary rock that forms when minerals crystallize directly from water – an example is rock salt biochemical rock – Sedimentary rock that was formed by organisms or contains the remains of organisms – an example is coal or limestone Section 8.4 metamorphic rock – rock formed from extreme temperature and pressure deep inside earth metamorphism – any process that affects the structure or composition of a rock in a solid state as a result of changes in temperature or pressure or the addition of chemical fluids plastic deformation – a permanent change in shape by bending and folding foliated rocks – contain parallel layers of flat and elongated minerals – an example is gneiss nonfoliated rock – metamorphic rocks that have mineral grains with a random, interlocking texture – an example is marble
