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15 Cards in this Set
- Front
- Back
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What type of rock forms below the earths surface? |
Intrusive, Igneous
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What is basaltic? |
Dense, dark colored, igneous rock
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What are the three types of rocks? |
Igneous, sedimentary, metamorphic
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What is magma when it is above the earths crust? |
lava |
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What type of stone is puddingstone? |
A conglomerate |
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What is the state rock of Massachusetts? |
Puddingstone |
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How many minerals are known to exist? |
Over 2,000 |
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What type of rock is sandstone? |
sedimentary |
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What fossil fuel is formed from plants and animals buried millions of years? |
Coal
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How do metamorphic rocks form? |
Heat and pressure |
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What is the difference between sediments and sedimentary rock? |
Sediments are tiny pieces of rock |
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What process puts holes in igneous rocks? |
Cooling of bubbles |
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Where do sedimentary rock usually form? |
Under a body of water |
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Why do sedimentary rocks contain fossils? |
Dead things are buried with sediment and become part of the rock. |
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Is pumice an igneous rock? |
Yes |
