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• Most rivers are formed high up in the mountains ... • When rivers wear away it is called erosion ... • Some rivers start as mountain marshes or as rainwater seeping through sponge like rocks...
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www.hoover.k12.al.us/res/FifthGrade/Web%20Pages/alex/Ho...
www.hoover.k12.al.us/res/FifthGrade/Web%20Pages/alex/How%20Rivers%20are%20Formed.htm
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Rivers have always been important for travel, transportation, and trade routes. Most settlements were built along major rivers. Rivers are also important for farming ... This site has information on how rivers are formed and other physical aspects of rivers, as well as case studies of the Singapore River and the Rhine.
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www.42explore.com/rivers.htm
www.42explore.com/rivers.htm
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We wanted to find out how a river is formed so we made one of our own. First we filled some guttering full of earth, stones, brick and some twigs. We made sure the guttering was on a slope because a river always runs down hill. ... We discovered that when rivers are blocked by obstacles such as boulders and dams,
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www.st-marymagdalens.lewisham.sch.uk/Archive/Science/ri...
www.st-marymagdalens.lewisham.sch.uk/Archive/Science/river/river.htm
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This is because the river was flowing there before the mountains were formed, and it kept to its course as they rose around it. The South Island’s Clutha and Buller rivers also flow through gorges formed by rising mountain ranges...
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www.teara.govt.nz/TheBush/Landscapes/Rivers/1/en
www.teara.govt.nz/TheBush/Landscapes/Rivers/1/en
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