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Grade 8 Science: 9A/9B Practice Quiz

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1.
5 points
The amount and quality of the light reflected from a mineral's surface refers to the mineral's ___________. (one word)
2.
5 points
All minerals are composed of two or more elements.
3.
5 points
Seawater is an example of a mixture.
4.
5 points
The process by which a crystal grows is called ____________.
5.
5 points
_________________ refers to the glow caused by ultraviolet light illumination.
6.
5 points
A diamond will scratch feldspar.
7.
5 points
Obsidian, a mineral of volcanic origin, breaks in smooth, curved surfaces. What type of fracture does it show?
8.
5 points
When you conduct an acid test on a mineral sample, you are watching for
9.
5 points
The mineral cinnabar, also called mercury sulfide, is an important source, or _______ of mercury.
10.
5 points
If a dark mineral ___________ iron filings, you could conclude that the mineral is magnetite.
11.
5 points
A mineral with only one kind of atom is called a compound.
12.
5 points
Mica is a mineral with poor cleavage.
13.
5 points
Sulfur is an example of a ___________ mineral.
14.
5 points
Specific gravity refers to
15.
5 points
Some minerals are too hard to leave a streak on a streak plate.
16.
5 points
Which of the following is NOT a mineral?
17.
5 points
All native minerals are pure elements.
18.
5 points
A mineral's streak is a _______ reliable way to classify a mineral than its apparent color.
19.
5 points
The Mohs scale is used to rate a mineral's resistance to fracturing (breaking).
20.
5 points
The color of a mineral's powder is called its ___________.
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