Trouble Next DooreBook - 2016
"Third grader Calvin is dealing with his next door neighbors moving away--and the school bully moving in. Meanwhile, competition at the school science fair is heating up, and Calvin must decide what to do when his data doesn't prove his theory"-- Provided by publisher.
Publisher: Boston ; New York : Clarion Books, Houghton Mifflin Harcourt, 
Characteristics: data file 1 online resource : illustrations