Bridges and Tunnels : Investigate Feats of Engineering with 25 Projects
Donna Latham
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MAYA : Amazing Inventions You Can Build Yourself
Sheri Bell-Rehwoldt
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Garbage : Investigate What Happens When You Throw It Out With 25 Projects
Donna Latham
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TOOLS OF THE ANCIENT ROMANS : A Kid's Guide to the History & Science of Life in Ancient Rome
Rachel Dickinson
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Format: eBook (PDF)