Unusual Traits: Tongue Rolling, Special Taste Sensors, and More
Can you roll your tongue into a U-shape? Some people can. But other people's tongues stay flat. What determines whether you can roll your tongue?
Book Info
Ages: 8-10
Read time: 15-30 mins
AR LEVEL: 3.1
LEXILE©: 540L
Ages: 8-10
Read time: 15-30 mins
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