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SS Chapter 9
SS Chapter 9 Vocabulary
Term | Definition |
---|---|
mesa, butte, canyon | three landforms caused by erosion |
Grand Canyon | the deepest canyon located in Arizona |
desert | an area of dry lands where little rain falls |
aquifers | underground layers of rock or gravel that trap water |
adaptation | when a plant or animal slowly changes over many years allowing it to survive in its environment |
dry farming | a good way to grow crops with only rain water |
Colorado River | erosion from this river formed the Grand Canyon |
Dust Bowl | when an area of the Great Plains experienced terrible droughts and dust storms |
aqueduct | a pipe or canal that carries the water to cities or farms |
erosion | this is caused when water, wind, or ice slowly carry away soil and rock |
petroleum | also called oil and is formed underground from the remains of dead plants |
petrochemicals | chemicals made from petroleum |
boom town | a town that grew very quickly wherever oil is discovered |
crude oil | petroleum that bubbles up from the ground |
refinery | a factory where crude oil is transported and then separated into parts that can be used |
Spindletop | the hill where a drilling crew first struck oil |
Texas, Oklahoma, New Mexico, Arizona | the states that make up the Southwest Region |
paint | product made from a light fraction |
gas | product made from a medium fraction |
grease | product made from a heavy fraction |
Black Gold | a name for petroleum because it is black and valuable |
why it is important to conserve petroleum | it is nonrenewable |