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Lance Dragon Defends His Castle with Simple Machines

By Eric Braun, Anthony Briglia (Illustrator)
Paperback
$9.99
By Eric Braun, Anthony Briglia (Illustrator)
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Hey, dudes! Skateboarding is my thing, but when barbarians invade my castle, I have to defend myself. Watch me launch a water balloon with a lever and lower a key with a pulley. Roll with me and find out how simple machines simply rock!

Categories

KidsScience & Technology - KidsMachinery & Tools - KidsPhysics - Kids