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20 Cards in this Set

  • Front
  • Back
fall line
a place where rivers drop from higher to lower land
waterpower
energy produced by running water
pioneer
a person who first settles a new place
pass
an opening between high mountains
line graph
a graph that uses a line to show changes over time
reservoir
a lake formed by the water held back by a dam
hydroelectric power
electricity made by waterpower
aluminum
a metal used to make things that need to be strong
reclaim
"reclaim the land" or return the land back to a natural condition
hub
a city where trains or planes stop on their way to other places
occupation
what a person does for a living
high-tech (industries)
high-tech industries are those that invent, build, or use computers and other kinds of electronic equipment
resort
a place where people go to relax and have fun
wildlife refuge
an area of land set aside to protect animals and other living things
endangered animals
endeangered animals are ones that are few in number and whose survival is uncertain
habitat
a region where a plant or an animal naturally grows or lives
extinct
animals are extinct when all of their kind have died out
reef
ridge of rocks, sand, or coral near the surface of the sea
coral
a stony material formed by the skeletons of tiny sea animals
marsh
low, wet land where cattails, tall grasses, and other similar plants grow