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crct science review
review of science textbook 6th grade chapter 3 sections 1,2,and 3
| Question | Answer |
|---|---|
| size and shape and pattern of rock grains | texture |
| a particle of a mineral or of another rock that gives a rock its texture | grain |
| rock that has small grains that are hard to see individually | fine-grained |
| rock with large and easy to see grains | coarse-grained |
| type of rock from magma or lava | igneous |
| type of rock from tiny particles of other rocks pressed together-there are 3 types of this type of this rock | sedimentary |
| type of rock formed from high heat and pressure, underground | metamorphic |
| kind of igneous rock from magma | intrusive |
| kind of igneous rock formed from lava | extrusive |
| most common igneous extrusive rock | basalt |
| most abundant rock in continental crust | granite |
| type of igneous rock texture in which large crystals are scattered on a background of small crystals; this unique texture is from 2 stages of cooling | porphyritic |
| most of Earth's minerals contains this material-it's formed from oxygen and silicon | silica |
| a familiar rock with very high luster and is all black | obsidian |
| small and solid pieces of material that are from rock or organisms are moved by erosion and can form sedimentary rock | sediment |
| the process of gravity, water, ice, or wind moves rocks and soil | erosion |
| the process of sediment being settled down somewhere, a stage in the formation of sedimentary rock | deposition |
| the process of sediments being pushed together to make the sediments more packed up, a stage in a sedimentary rock's formation | compaction |
| the process of sediments being hardened and crystallized, the last stage in the formation of any sedimentary rock | cementation |
| a type of sedimentary rock that is from different rock fragments just squeezed together very hardly | clastic |
| a common clastic rock from water depositing clay in very thin layers- this different rock doesn't even need the stage of cementation to become a sedimentary rock | shale |
| a sedimentary clastic rock from compacted and cemented sand grains-a word in this clue is in the name of this rock | sandstone |
| sedimentary rock with sharp and large rock fragments | breccia |
| puddingstone is a form of what clastic sedimentary rock | conglomerate |
| type of sedimentary rock that is from organisms' remains deposited in thick layers | organic |
| a sedimentary organic rock that is also a fossil fuel | coal |
| type of limestone we commonly use for drawin on sidewalks | chalk |
| limestone is a sedimentary ________ rock | organic |
| type of sedimentary rock formed from minerals crystallized in a solution | chemical |