Burrs to Velcro

Burrs to Velcro

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Some of the greatest inventions that changed the modern world have been based on nature. In Burrs to Velcro, readers will discover how the invention of velcro was inspired by the mechanics of burrs. Book includes table of contents, glossary, index, author biographies, and sidebars.
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Ages: 8-10
Read time: 15-30 mins
AR LEVEL: 3.5
LEXILE©: 530L
Ages: 8-10
Read time: 15-30 mins

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