01497cam a2200397 i 4500 532115628 TxAuBib 890818s1990||||||||||||||||||||||||eng|u 89039634 9780830692873 0830692878 9780830632879 pbk. 0830632875 pbk. (OCoLC)20354020 DLC eng DLC UUC OCLCQ BAKER BTCTA WAU YDXCP F4B KYL T7B BDX GBVCP OCLCO OCLCF P4I OCLCQ TxAuBib rda Bonnet, Robert L. Earth science : 49 science fair projects / Robert L. Bonnet and G. Daniel Keen. 1st ed. Blue Ridge Summit, PA : TAB Books, 1990. xiv, 146 pages : illustrations ; 25 cm. txt rdacontent n rdamedia nc rdacarrier Science fair project series Includes bibliographical references (pages 141-142) and index. Provides project ideas from beginning to end, including overviews, organizational direction, suggested hypotheses, materials, and procedures. Earth sciences Experiments. Science Experiments. Experiments. Earth science projects. Earth sciences Exhibitions. Earth sciences Experiments. Science projects. Keen, Dan. Science fair project series.