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Final Exam Review
LMS Ch 5, 6, 8 Review
Question | Answer |
---|---|
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. |