Term
| What kind of rock is OBSIDIAN? |
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Definition
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Term
| What kind of rock is SANDSTONE? |
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Definition
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Term
| What kind of rock is GRANITE? |
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Definition
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Term
| What kind of rock is CONGLOMERATE? |
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Definition
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Term
| What kind of rock is COQUINA? |
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Definition
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Term
| What kind of rock is MARBLE? |
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Definition
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Term
| What kind of rock is PUMICE? |
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Definition
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Term
| What kind of rock is SLATE? |
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Definition
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Term
| What kind of rock is BASALT? |
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Definition
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Term
| What kind of rock is SILTSTONE? |
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Definition
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Term
| What is true of igneous rocks that are low in silica? |
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Definition
| They are dark colored. ( like Basalt) |
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Term
| What is a good definition of igneous rock? |
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Definition
| Rock that forms from magma or lava. |
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Term
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Definition
| Rocks that are dark-colored and made from magma or lava. |
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Term
| Name a metamorphic rock which shows great foliation. |
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Definition
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Term
| Is the word inorganic associated with sedimentary rocks? |
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Definition
| No, clastic, chemical and organic are associated, though. |
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Term
| TRUE/FALSE? It takes millions of years for a sedimentary rock to form? |
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Definition
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Term
| TRUE/FALSE? Intrusive rocks have smaller crystals than extrusive rocks. |
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Definition
| False!! Intrusive rocks cool more slowly so their crystals will be bigger. |
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Term
| TRUE/FALSE? Clastic rocks form when rock fragments are squeezed together. |
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Definition
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Term
| TRUE/FALSE? A rock's grains give the rock its texture. |
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Definition
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Term
| TRUE/FALSE? Most metamophic rocks for close to the surface. |
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Definition
| FALSE! They form under heat and pressure. |
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Term
| TRUE/FALSE? Sedimentary rocks form from particles deposited by water and wind. |
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Definition
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Term
| TRUE/FALSE? The White House in Washington, D.C. is built of limestone. |
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Definition
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Term
| TRUE/FALSE? Limestone is used for making cement. |
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Definition
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Term
| TRUE/FALSE? Almost all growth of a coral reef occurs close to the water's surface. |
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Definition
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Term
| TRUE/FALSE? The deeper a rock is buried in the crust, the less pressure there is on the rock. |
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Definition
| False. The deeper it is buried, the more pressure it will have on it. All of the layers on top of it are pressing it down. |
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Term
| What kind of grain size will a rock have it cools in two stages? |
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Definition
| Mixed sizes - we call this "porphyry rock." It is a mix of large and small grains. |
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Term
| What kind of grain size will a rock have it comes from lava that cools rapidly? |
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Definition
| It will be fine-grained. There wasn't a lot of time for the grains to form. |
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Term
| What kind of grain size will a rock have it comes from magma that cooled slowly? |
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Definition
| It will be coarse-grained. This means the grains are big and easy to see. |
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Term
| What do we call the process when dissolved minerals glue sediments together? |
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Definition
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Term
| What do we call the process that occurs when sediments are pressed together in layers? |
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Definition
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Term
| What do we call the process that occurs when water or wind loosen and carry away fragments of rock? |
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Definition
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Term
| What do we call the process that occurs when sediments settle out of water or wind? |
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Definition
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Term
| Name the organic sedimentary rock that forms from the remains of swamp plants buried in water? |
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Definition
| Coal-bituminous coal to be exact. |
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Term
| The TYPE of sedimentary rock formed where the remains of plants and animals are deposited in thick layers? |
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Definition
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Term
| What is the name of the mineral from which rock salt comes? |
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Definition
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Term
| What is the term to describe small, solid pieces of material that come from rocks or living things? |
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Definition
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Term
| What mineral do coral animals use to make their protective outer shells? |
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Definition
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Term
| Igneous rock formed from LAVA that erupted onto Earth's surface is called? |
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Definition
| Extrusive - remember the ex as in "exit." The material has left the earth. |
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Term
| Igneous rock formed from MAGMA below Earth's surface is called? |
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Definition
| Intrusive - remember "in" as in "inside" the earth still. |
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Term
| The texture of an igneous rock depends on the size and the shape of its? |
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Definition
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Term
| The particles of minerals or other rocks that make up a rock are called? |
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Definition
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Term
| Why are fossilized remains not usually found in igneous rock? |
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Definition
| Igneous rock forms from hot lava or magma. Fossils would burn up and there would be nothing left. |
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Term
| How can the metamorphic rock SLATE be used? |
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Definition
| Slate can be used to make chalkboards, to tile around a fireplace or pool, to make wall hangings. It can easily be painted on. |
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Term
| Where in the United States were ancient coral reefs preserved in rock and have given evidence that the area was once covered by a shallow sea? |
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Definition
| Wisconsin, Indiana, Illinois, New Mexico, and Texas. (Most of these areas are nowhere near sea water today.) |
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Term
| What qualities of igneous rocks, like granite, have long made them useful for tools and building materials. |
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Definition
| They are hard, dense, and durable. |
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