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7 Cards in this Set

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Toward the source or beginning of a river or stream. Against the current of a river.
upstream
To bend out of shape.
warp
The flow of water or air.
current
A canoe or boat made by hollowing out a large log.
dugout
A tank for making steam to heat buildings and to run engines.
boiler
A tree stump or branch stuck in a river that can damage a boat.
snag
A boat, especially a riverboat, moved by a steam engine.
steamboat