Rivers and Streams Crossword Puzzle

QUESTIONS LIST: gravity : the natural force that pulls things towards the earth, watershed : a valley with many small streams, rain : moisture squeezed from rain clouds, freshwater : relating to or living in water that is not salty, streams : a natural flow of water that is smaller than a river, mountains : an area of land that rises very high above the land around it and that is higher than a hill, valley : an area of low land between hills or mountains, rivers : a large natural flow of water that crosses an area of land and goes into an ocean or a lake, hills : an area of land that rises higher than the land around it, but not as high as a mountain.