Rivers related facts vocabulary crossword puzzle. This worksheet features the following words: rain, tributary, oxbow, lake, dam, gravity, euphrates, amazon, drainage basin, delta, valley. The meaning of each word is below the page and serves as a clue when searching for the correct word below. This is a suitable ESL printable PDF vocabulary worksheet for children and can be used both at home and in the classroom; particularly to improve 2nd, 3rd, 4th, 5th, 6th, and 7th graders vocabulary.


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