Ages: 8-10
Read time: 15-30 mins
AR LEVEL: 3.0
LEXILE©: 510L
Body Parts: Double-Jointedness, Hitchhiker’s Thumb, and More
Can you stretch your thumb back to your arm? Is your pinkie straight or slightly bent? What determines the way your joints bend—or don't bend? Read this book to find out about how your genes affect your physical features.
Book Info
Ages: 8-10
Read time: 15-30 mins
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