Elementary Riddles

Penn State at Erie, The Behrend College, Division of Science, Station Road, Erie, PA 16563. The following riddles ... I'm bound for dirt and yet I'm c...
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Elementary Riddles Doris Eckey Penn State at Erie, The Behrend College, Division of Science, Station Road, Erie, PA 16563 The following riddles, highlighting some contradictory orooerties of elements and their comoounds. mav orovide ho