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Types of Rocks

Mr. Smith 6th Grade Science

QuestionAnswer
naturally occuring solid with a definite structure mineral
measure of how easily a mineral can be scratched hardness
how a mineral reflects light luster
color of a mineral when it is ground into a powder streak
size and shape of pieces of materials in the rock texture
rock made up of pieces large enough to see and feel coarse
rock that has no visible pieces and feels smooth glassy
way the pieces of materials in the rock fit together structure
mineral crystals have grown together to make one interlocking mass crystalline
hot liquid rock material that cools and hardens igneous rock
igneous rock formed below earth's surface intrusive
igneous rock formed above earth's surface extrusive
name two examples of an intrusive igneous rock granite and gabbro
name two examples of an extrusive igneous rock obsidian and rhyolite
bits and pieces of rocks clumped together sedimentary rock
name two examples of sedimentary rock halite, limestone, conglomerate
another kind of rock that was changed metamorphic rock
metamorphic rock is created by what great heat or pressure or a chemical change
name two examples of metamorphic rocks Gneiss and slate
rocks are contiually changing from from one to another in a never-ending cycle the rock cycle
how does a rock get it's properties from the way it forms
look at the rock cycle chart in your text on page 77 and in your notes look at the rock cycle chart in your text on page 77 and in your notes
extrusive rocks that forms above the surface and cools quickly creates what small crystals
intrusive rock that forms below the earth's surface and takes more time to develop creates what large crystals
Created by: mtoutant
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