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Final Exam Review

LMS Ch 5, 6, 8 Review

QuestionAnswer
To determine if a substance is a mineral or a nonmineral, scientists?? Ask for basic questions.
What is an inorganic substance?? One that is not made up of living things or the remains of living things.
Which of the following is a question scientists ask to determine if a substance is a mineral?? Does the substance occur naturally?
What are the two main groups of minerals?? Silicate and Nonsilicate.
Color alone is generally?? Not a reliable (good) clue for identifying a mineral sample.
How do rocks get broken down into small fragments?? By erosion.
Three factors that affect whether rock melts include temperature, pressure, and?? The presence of fluids in the rock.
The law of superposition helps scientists determine?? That one rock layer is older than another layer.
The law of superposition is an example of what kind of dating?? Relative Age of a layer of Sedimentary Rock.
The method of using radioactive decay to measure the absolute age of rocks is called?? Radiometric Dating.
Igneous Rock?? Rock that forms when molten (melted) rock cools and hardens.
Sedimentary Rock?? Rock that forms when rock fragments are compressed (squeezed) and cemented (glued) together.
Lava?? Molten (melted) rock that is exposed at Earth's surface by exiting the Earth.
Metamorphic Rock?? Rock that forms when existing rock is altered (changed).
Magma?? Molten (melted) rock.
Sediment?? Rocks, mineral crystals, and organic matter that have been broken into fragments (pieces).
Nonsilicate?? Mineral that does not contain silicon and oxygen compounds.
Streak?? Color of a mineral in powdered form.
Luster?? Way that a mineral reflects light.
Cleavage?? Tendency of a mineral to split and form flat, smooth surfaces.
Density?? Ratio of a substance's mass to its volume.
Mineral?? Inorganic solid with characteristic chemical composition and physical properties.
Silicate?? Mineral that contains silicon and oxygen atoms.
Color?? Most visible property, but less reliable way to identify minerals.
Hardness?? Ability of a mineral to resist scratching.
It says write the letter (mark "A" or "B") of the description that best matches the term or phrase. So here I go! Intrusive Igneous Rock?? A.
Extrusive Igneous Rock?? B.
Coarse-Grained Texture?? A.
Fine-Grained Texture?? B.
It says please fill in the rock cycle with the name of the type of rock that forms at each stage. So here I go! Melting and cooling?? Igneous Rock.
Erosion, deposition, and cementation?? Sedimentary Rock.
Changing temperature and pressure?? Metamorphic Rock.
Created by: ericyonggyuhong