Share with Yawning Yolanda and her friends in this Quirkles adventure. Discover what happens when the creatures of Quirksville get a bad case of the yawns. Yawning Yolanda teaches that there is still much to be learned about how our body works. Be sure and try the hands on experiments in the back of the book. You may be the one to solve the mystery of the yawns!

 

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