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GREAT IDEAS OF SCIENCE: THE BIG BANG by FLEISHER, PAUL (Hardcover - 2006)
ISBN: 9780822521334
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS
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HEART DISEASE by SILVERSTEIN, ALVIN (Hardcover - 2006)
ISBN: 9780761334200
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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INFLUENZA: THE NEXT PANDEMIC? by GOLDSMITH, CONNIE (Hardcover - 2007)
ISBN: 9780761394570
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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INVESTIGATING CLIMATE CHANGE: SCIENTISTS' SEARCH FOR ANSWERS IN A WARMING WORLD by JOHNSON, REBECCA L. (Hardcover - 2009)
ISBN: 9780822567929
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS
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INVISIBLE INVADERS: DANGEROUS INFECTIOUS DISEASES by GOLDSMITH, CONNIE (Hardcover - 2006)
ISBN: 9780822534167
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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JOHANNES GUTENBERG AND THE PRINTING PRESS by CHILDRESS, DIANA (Hardcover - 2008)
ISBN: 9780822575207
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS
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MAJOR INVENTIONS THROUGH HISTORY: THE HISTORY OF ENERGY by LANDAU, ELAINE (Hardcover - 2006)
ISBN: 9780822538066
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS US
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MAO ZEDONG'S CHINA: DICATORSHIPS by GAY, KATHLYN (Hardcover - 2008)
ISBN: 9780822572855
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS
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MARCO POLO'S JOURNEY TO CHINA by CHILDRESS, DIANA (Hardcover - 2008)
ISBN: 9780822559030
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS
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MARINE MAMMAL PRESERVATION by THOMAS, PEGGY (Hardcover - 2000)
ISBN: 9780761314585
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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ORDINARY GENIUS: THE STORY OF ALBERT EINSTEIN by MCPHERSON, STEPHANIE SAMMARTINO (Paperback - 1995)
ISBN: 9781575050676
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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ROBOT EXPLORERS (INNOVATIONS SPACE) by MILLER, RON (Hardcover - 2008)
ISBN: 9780822571520
Subject: EDUCATION
Publisher: TWENTY-FIRST CENTURY BOOKS
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SCIENCE CONCEPTS SECOND SERIES: FOOD CHAINS by SILVERSTEIN, ALVIN (Hardcover - 2008)
ISBN: 9780822567974
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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SCIENCE CONCEPTS SECOND SERIES: WEATHER AND CLIMATE by SILVERSTEIN, ALVIN (Hardcover - 2008)
ISBN: 9780822567967
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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SCIENCE CONCEPTS: FORCES AND MOTION by SILVERSTEIN, ALVIN (Hardcover - 2009)
ISBN: 9780822575146
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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SCIENCE CONCEPTS: MATTER by SILVERSTEIN, ALVIN (Hardcover - 2009)
ISBN: 9780822575153
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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SCIENCE CONCEPTS: PHOTOSYNTHESIS by SILVERSTEIN, ALVIN (Hardcover - 2008)
ISBN: 9780822567981
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS USA
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SCIENCE ON THE EDGE: CAVE SLEUTHS by LINDOP, LAURIE (Hardcover - 2006)
ISBN: 9780761327028
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS
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SEVEN NATURAL WONDERS OF CENTRAL AND SOUTH AMERICA by WOODS, MICHAEL (Hardcover - 2009)
ISBN: 9780822590705
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS
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SEVEN WONDERS BEYOND THE SOLAR SYSTEM by MILLER, RON (Hardcover - 2011)
ISBN: 9780761354543
Subject: CHILDREN
Publisher: TWENTY-FIRST CENTURY BOOKS
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