Who Knew?: The Wonders of...
Kathleen Madden
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Rubber
Dalton Rains
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Hoover Dam
Ashley Gish
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Silicon
Dalton Rains
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Petra
Brienna Rossiter
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Steel
Trudy Becker
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Aqueduct of Segovia
Brienna Rossiter
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Graphene
Dalton Rains
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Glass
Trudy Becker
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Inclined Planes All Around
Trudy Becker
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Wheels and Axles All Around
Trudy Becker
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Experiment with Engineering:...
Nick Arnold
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Built by Animals: Meet the...
Christiane Dorion
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World's Fastest Roller...
Hubert Walker
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World's Fastest Spacecraft
Hubert Walker
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Let's Get Tiny!: Jumping into...
Chris Ferrie
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I Can Code: And/Or
Vicky Fang
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Let's Clean Up!: Unpacking...
Chris Ferrie
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Let's Race!: Sprinting Into...
Chris Ferrie
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Hey, GrandDude! How Do They...
Kenneth A Crawford
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Hey GrandDude! Where Does the...
Kenneth A Crawford
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Building a Road
Wendy Hinote Lanier
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Why Do We Have Night and Day?...
Baby Professor
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Building a Computer
Lori Fromowitz
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