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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
Magma |
Molten material found BENEATH surface of earth |
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Lava |
Molten material found ON the surface of the earth |
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INtrusive Rock |
Formed when Magna hardens beneath Earth's surface. |
INside Earth. Cools slowly. Large crystals. Example granite. |
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EXtrusive Rock |
Formed when lava erupts from Earth's surface, cools and hardens. |
EXits Earth. Cools quickly. Tiny or no crystals. Example Basalt |
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Texture - coarse grained |
Takes longer to cool, gives minerals time to grow, Intrusive rock. |
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Texture - Fine grained |
Cools quickly, tiny or no crystals, extrusive rock. |
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Composition - Mafic |
Dark colored rock rich in calcium, iron and magnesium poor in silicon. |
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Composition - Felsic |
Light colored rocks that are rich in elements such as aluminum, potassium, silicon and sodium. |
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Composition - Glassy |
Smooth shiny surface, no visible grain |
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Igneous Rocks |
Form by cooling of molten rock |
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