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32 Cards in this Set
- Front
- Back
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how many time zones? |
24 |
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how wide are each time zone in degrees? |
15 degrees wide |
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where is the international date line located? |
180 degrees meridian |
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when you travel E north your calendar move? |
back |
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arrangement of electromagnetic spectrum is to ? |
wavelength |
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what is frequency? |
# of waves that passes a point |
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speed of light in a vacuum? |
300,000 km/s |
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minerals are identified by what? |
their physical & chemical properties |
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appearance of milky quartz is caused by |
trapped bubbles |
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minerals hardness can be determined by |
the mohs scale of hardness |
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where are atomic bonds weak? |
planes where minerals break |
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minerals with jagged edges are said to have? |
fractures |
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what is specific gravity? |
ratio of weight of a substance |
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in double refraction light bends in |
two directions |
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place one drop of hydrochloric acid on calcite |
calcite releases bubbles |
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bubbles are made up of |
CO2 |
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(lodestone) what does the mineral have? |
magnetism |
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why are igneous rocks strong? |
interlocking grain texture |
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which is igneous rock? |
granite |
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igneous are resistant to? |
weather |
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an ore is? |
a mineral that can be mined at a profit |
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what is metal? |
formed at the end of magma crystallization |
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what are pegamitites? |
large-grain minerals |
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what are kimberlites? |
ultramafic rocks (diamonds) form in high pressure |
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metamor. can only be present under |
high pressure |
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contact meta. occurs under |
high temp moderate to low pressure |
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regional metamorphic belt is divided into zones based on |
mineral groups |
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large minerals that crystallizes at high temp are found near |
igneous intrusions |
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meta. rocks that lack mineral grains with long axes are |
non foliated |
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porphoblast differ from minerals surrounding them based on |
size |
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hot fluids can change a rock's |
chemistry |
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water vapors is a source of |
clouds and rain |
