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9 Cards in this Set

  • Front
  • Back
source of river
place where a river begins
volcano
opening in the Earth, often raised, through which lava, rock, ashes, and gases are forced out
slope
side of a hill or mountain
timberline
line on a mountain above which it is too cold for trees to grow
swamp
area of low, wet land with trees
strait
narrow channel of water connecting tow larger bodies of water
tributary
stream or river that empties into a larger river
waterfall
steep drop from a high place to a lower place in a stream or river
valley
low land between hills and mountains