In an attempt to reclaim the playground, Trevor figures out how to use an uneven seesaw to teach Buzz and his bully buddies a lesson.
Series
5 released booksScience Solves It!® is a 5-book series with 5 released primary works first released in 1966 with contributions by Jennifer Dussling, Mary Lawrence, and Daphne Skinner.
Series
4 released booksScience Solves It! is a 4-book series with 4 released primary works first released in 1966 with contributions by Jennifer Dussling, Mary Lawrence, and Sarah Albee.
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